Greetings:
I have been telling my students and others for the past year or so that
if they plan to make the next great independent feature that it will ultimately
cost less(for the 35 uprez - release) to shoot in HiDef rather than MiniDV.
I think most on this list understand why. However, recent improvements
in the capability of Up-rez facilities may be changing this(as has been
mentioned here recently). So who knows where this will take us in the
next year or two.
A local facility here in Toronto who are doing a lot of work for American
clients have demonstrated an amazing ability to take MiniDV and blow it
up to 35 with very respectable results. Aside from the proprietary digital
smoke and mirrors that they apply; they recommend right off the top that
at tapes or selected takes be bumped up to D-Beta(in part because it's
4:2:2) and then normal Post procedures followed. Now, we all know that
if you bump 4:1:1 to 4:2:2 you still have 4:1:1, but I am wondering if
there is something else going on(obviously there is). Someone here recently suggested that the Varicam
to 35 yielded slightly softer results than HD-Cam, but I would think it
would still be vastly superior to DV. I wonder if there is something tangible
happening here or if the eye-brain somehow accepts a 35mm resolution print
as superior in spite of how it was originated (if it was well crafted
of course).
I remember 20 or so odd years ago when the NFB was very big on 16mm as
origination for 35 release.
They did a lot of research and one of the conclusions they came to was
that 16 blown up to 35 and projected to the same width; would reveal much
better results in the 35 print even if it went through an extra optical
stage. This is not too hard to understand because we would not be observing
16mm grain, but then that was then and it was long before 7245 and current
emulsions such as Vision2.
I am also wondering if others have observed this tangible improvement
in DV to 35mm in the past year or so and what your sense is of where this
may go (scary on one hand but!!).
The other sense I am getting(although my own experience does not support
it) is that there may be a resurgence of 16mm as original. I have always
felt that 16 has never been explored and exploited enough as a medium
for independent production.
Best Wishes, from the great white north.
Lance Carlson
Cinematographer/Consultant
Toronto
Lance et al:
Someday I'm going to figure out who "they" are, other than those
tiny little voices in our own imaginations that tell us what we want to
hear anyway. After all these years, does anyone really believe that "bumping
up" or "up-rezing" an image with inherently limited bandwidth
or resolution or any image to a recording/capture medium with such characteristics,
to a recording/ capture medium with higher bandwidth or resolution, actually
increases the image quality of that image???? I hope not, or Geoff may,
ultimately, be forced to rename this forum the "Fairy Tale Forum".
While current technology has improved almost all of the chemical and electronic
capture techniques, none has, yet, achieved the vaunted state of alchemy
that can turn Nickel into Silver or Silver into Gold. None.
For those of you with some basic understanding of Physics, please envision
a 1 kilometre length pipe with a diameter of 5 millimetres, connected
to another 1kilometre pipe with a diameter of 10 millimetres. If 100 Litres
of water is pumped into the 5 millimetre pipe, then measured, 2 Km later
at the exit of the 10 millimetre pipe, will there be any more than 100
Litres of water??? Probably not. Will the water's molecular makeup change???
Probably not. If the water is dirty going into the pipe and we filter
it, it may be cleaner at the other end, but the volume of water will probably
be slightly smaller.
No one has found a way to turn DV into HD or 35mm Film quality. The best
we can hope for is that whatever we start out with retains the original
quality. The ONLY reason "bumping up" has ever been a commendable
or desirable process is for reasons of post-production convenience or
for specific distribution requirements. Not to improve the quality of
the original product. Never.
GEORGE C. PALMER
HDPIX, INC.
HD and Digital Imaging Services
www.hdpix.com
>it will ultimately cost less(for
the 35 uprez - release) to shoot in HiDef >rather than MiniDV.
I think most on this list understand why.
Not me. That would be due to a choice on a post-production route, not
on a strict direct cost basis. Sure the results of the DV-originated material
will always be lesser in quality to the HD material, but they don't have
to be more expensive.
“They recommend right off the top that at tapes or selected takes
be bumped up to D-Beta(in part because it's 4:2:2) and then normal Post
procedures followed."
Most likely to minimize future loss of image information. DV25 codecs
can vary in quality and there can be loss at various stages of post. DigiBeta
will hang onto that info better downstream.
"16 blown up to 35 and projected to the same width would reveal much
better results in the 35 print even if it went through an extra optical
stage."
One very strong reason would be the general quality of 35mm projectors
over 16mm ones. And it can be extremely difficult to pump enough light
through a tiny 16mm or Super-16 frame to get a properly and evenly illuminated
image on screen without melting the print. It's far easier to do with
35mm film.
Most important lesson in all of this is that the system is only as strong
as the weakest link in the chain. So often we only consider the shooting
medium, but it can also be the various post steps, the travel between
those steps, and the exhibition format.
Mitch Gross
NYC DP
George C. Palmer wrote :
>After all these years, does anyone really believe that "bumping
up" or >"up-rezing" an image with inherently limited
bandwidth...actually >increases the image quality of that image????
Well you know I guess I do.
I mean I have to believe in "loss less" compression, I keep
getting told so anyway, and after all that is just a system that guesses
what I don't want and throws it away and then on replay guesses what was
thrown away.
Now if that works why shouldn't a system that guesses what was there in
the
gaps between the pixels? I'm actually fairly serious about this.
I actually prefer the idea of guessing in post, in a quiet and adjustable
way, than guessing in an automated on location kind of way.
Cheers
Geoff Boyle FBKS
Director of Photography
EU based
www.cinematography.net
I saw a demo today which included examples of 16mm and 35mm originated
material transferred to HD and then output to 35mm film, HD originated
material output to 35mm, and SD video originated material upconverted
to HD and output to 35mm.
The 35mm, 16mm and HD material looked pretty good on the smallish screen,
and in a blind test I might have had some trouble distinguishing one format
from another. (Apparently, getting transferred to HD is a great equalizer.)
However, the SD material did not look as good as any of the other three
formats even thought it had been up-converted with a great deal of skill
on a state of the art system. However, most independent features which
are fortunate enough to get a distribution deal don't get a theatrical
release, they're more likely to get a video distribution on DVD and VHS.
I tell independent producers and directors to focus on a video finish,
but protect it for a theatrical release just in case.
Jessica Gallant
Los Angeles based Director of Photography
West Coast Systems Administrator, Cinematography Mailing List
https://cinematography.net/
>I am also wondering if others
have observed this tangible improvement >in DV to 35mm
in the past year or so and what your sense is of where >this
may go(scary on one hand but!!).
I have also seen astonishing improvements in DV film-outs in just the
past year. It's getting about as good as one can possibly expect. Film
still has the edge in lack of vertical sampling artefacts, latitude, and
high-frequency detail (extended MTF), but the DV xfers are arguably better
than many 16mm blowups (pre-7218, at least!) [and I *did* say "arguably"
not because I want to start an argument, but because I fully acknowledge
that depending on what you're looking at in a shot, you can have a strong
disagreement with my perceptions, grin. No flames, please : I don't want
to start a DV vs. film war because such things are silly.
Different tools with different strengths and weaknesses.
Aside from the MTF issues (a.k.a. disappointing long/wide shots), the
dead giveaway for me on DV or other SDTV film-outs is the residual scan
line structure. Even shooting with camera detail down doesn't hide it
enough, and while a good DP can shoot around most SDTV limitations, it's
mighty hard to avoid *any* scene elements that call this out.
>The other sense I am getting(although
my own experience does not >support it) is that there may
be a resurgence of 16mm as original.
7218 may indeed drive that. I'm certainly fielding more questions about
it recently.
Cheers,
Adam Wilt
Camera / Editing / Engineering
Menlo Park CA USA
Geoff,
>And after all that is just a
system that guesses what I don't want and >throws it away and
then on replay guesses what was thrown away.
In our drive to better understand the myriad of issues relating to the
imaging qualities of digital media we sometimes say things that can lead
non engineers to very clear levels of misunderstanding, and there are
many reasons for the confusion in a world where we are forced to leave
the familiar womb of analog technology for one that runs counter to our
observations of the world around us. This is made all the more confusing
when signals of different types ( audio and video ) are not handled or
processed consistently. Those who are more familiar with chemical based
media think in terms of a frame that contains real images -- so the notion
of leaving something out of that image seems, on the surface, to be unclean
and prone to distortion. But it is not. Most of the information we capture
on film is redundant. In real life most of what we see is redundant and
so we assume it is necessary to seeing reality. Not so.
The rules for digitalisation and compression of audio and video are not
consistent. Our friends at Dolby Labs can better explain why, but in general
the ear is not as discerning as the eye. Thus Dolby can compress a 1.56
megabit audio stream into 256 kilobits or less without the listener detecting
any change. This is accomplished by applying principles of 'psycho-acoustics'
than can fool our ears.
However our eyes, for the most part, will not tolerate such tampering
– so video compression requires that we not unduly tamper with those
parts of the data stream that define the visible elements of the image.
Fortunately, images are comprised of largely redundant data, that is to
say, duplicate information. There is no guessing about what's redundant
and what is not -- for the digital stream can be examined at high speed
-- and the redundant information removed without in any way affecting
image quality. This seems very strange to those of us who grew up in an
analog transmission world --where every detail had to be transmitted in
every frame. In analog, it takes the full channel bandwidth to transmit
a black frame with a single white letter of any size in the middle. The
bandwidth is required to define the edges of the letter -- so 29.97 times
per second the frame and the transients required to define the letter
edges must be transmitted. In a digital environment, the frame need only
be analysed once -- and transmitted once. If it is to remain on screen
for many seconds it never needs be transmitted again, and herein lies
the magic of digital compression.
There is no guessing -- on either end of the digital stream. The video
compressor easily identifies redundant information from frame to frame.
It need only transmit what has changed from the last frame -- for the
receiving station already knows what was in the last frame. No guessing
on either end.
Geoff Boyle correctly asserts that uprez conversion can indeed improve
image quality. While this appears to be more effective with digitally
originated images, especially DV at 720x486, it can also enhance some
characteristics of analog sourced images. The degree to which uprez conversion
improves image quality is largely dependent on the latitude and bandwidth
of the higher rez format. Thus the edge of an object on a 720 pixel frame,
which may appear uncertain to the eye, is very precisely defined in the
source data stream. Once sensed, that transition takes on the characteristics
of the higher resolution image. The eye detects this very real increase
in resolution and perceives the image as being of higher quality. Of course
it isn't. It's still the same image as before with all of the shortcomings
of the lens and sensing capabilities of the original camera.
Then why does it look better? Because the uprez processing shifts the
image in into a more subtle luminance space, a better defined chrominance
environment and a higher bandwidth transition capability. While it is
true that the half chrominance resolution of 4:1:1 sampling is no better,
the edges of chrominance are sharper after conversion to 4:2:2. So chrominance
bandwidth appears to be higher -- even though it isn't.
And how is this possible? Because there is far better image quality in
DV images than is visible when they are converted to video using technology
that does not seek to improve the image. Engineers make assumptions about
how DV images ought to appear based on the limitations of the camera and
inherent bandwidth of the source data. The validity of uprez improvement
in these images argues that earlier assumptions about data format and
usable image information need further adjustment.
One need only look at the film-out of some of uprezzed DV materials to
see how well the uprez operations can improve images in theatrical environments.
Is this a threat to those creating materials in 1080i, or 720p @24? Of
course not, but it makes one wonder what we might find in these images
when they are uprezzed into a far larger and higher bandwidth environment.
Robert Butche
Producer-Director
Chief Technologist
ImageStream Studios USA
Lance wrote :
>I remember 20 or so odd years
ago when the NFB was very big on >16mm as origination for
35 release.
Yes you certainly would be observing 16mm grain, and magnified at that.
(I'm all for shooting 16mm, I do shoot 16, but I prefer to be real about
it).
The Holy Grail is blowing up the picture while not blowing up the picture
grain, but guess what the picture is made of.…..
Jessica wrote :
>The 35mm, 16mm and HD material
looked pretty good on the smallish >screen, and in a blind
test I might have had some trouble distinguishing >one format
from another.
My question is WHY submit 16/S16 to this "equalizer" ? So far,
I've been unimpressed with HDCAM as a DI in 16mm blowups. D6, I don't
know. D5-HD, don't know.
Lance wrote :
>I am also wondering if others
have observed this tangible improvement >in DV to 35mm
in the past year or so and what your sense is of where >this
may go
I've seen Webcam blown up to 35mm; it worked fine, looked like BIG Webcam
My opinion is, use the smaller vid formats for what they are; use their
"guerrilla" aspects, "techno" aspects, use them to
create something like impressionism, or do something we don't have a name
for yet.
Or use them when they are the only means you have for telling a truth
you must tell.
Sam Wells
>7218 may indeed drive that.
I'm certainly fielding more questions about >it recently.
Oh come on. I can show you blowups from ECO-7255/7252, 7247, etc that
blow any DV blow up out of the water. So to speak.
Sam Wells
Sam Wells wrote :
>My question is WHY submit 16/S16
to this "equalizer"? So far, I've been >unimpressed
with HDCAM as a DI in 16mm blowups.
HDCAM makes a poor DI, D6 is OK but ALL the video formats suffer from
the same disease : less high light latitude than film, decreased color
space.
All you have to do is take a print with highlights that you know looks
great on a screen and rack it up on a telecine and transfer to any HD
format. All of a sudden you have to make choices about highlights that
will be compressed or thrown away, that otherwise look fine in the print.
Mark Smith DP
Oh Seven Films Inc.
George Palmer writes :
>After all these years, does
anyone really believe that "bumping up" or >"up-rezing"
an image with inherently limited bandwidth or resolution
or >any image to a recording/capture medium with such characteristics
Bandwidth, TV lines of resolution, or line pairs per millimetre are probably
not being increased at all with the various up-rez methods in use today,
but, the sharpness of edges (and some other factors) in the image can
definitely be increased a great deal. Properly done, this can have a significant
positive impact on the "apparent resolution" of the image.
I can not find it in the dictionary but I have always liked the term "acutance"
for describing sharpness, particularly in a low resolution environment.
An excellent example of high acutance yet low resolution is in cartoon
animation. Frequently there may be a very limited number of line pairs
in the entire picture width but the image is nevertheless quite sharp.
High resolution images usually have high acutance or sharpness. Very sharp
images do not necessarily have high resolution.
Regards
John D. Lowry
Lowry Digital Images
Burbank CA
There is no such word as "up-rez," nor is there any phenomena
under the Newtonian laws of physics that will magically give you more
resolution than you start with. Up conversion will give you a larger image
but it won't give you more resolution.
Scott "saw enough smoke and mirrors at COMDEX" Billups - LA
Scott Billups wrote :
>There is no such word as "up-rez,"
nor is there any phenomena under >the Newtonian laws of
physics that will magically give you more >resolution than
you start with.
I tend to agree. I never saw any image get better because a half pint
of DV got transferred to a half gallon jar of HD or a gallon jar of 35
mm film..
On another note, any one have any sense about digital degradation piling
up as one codec gets transferred to another. I have seen some of this
effect on a project I shot as it goes through the post process.
.......HD DVC pro origination > DV cam Down converts
> into avid Component >out of
Avid to Digi beta > and so forth. Granted this is
just the rough cut, but the shit is starting to pile up.......
Any body else noticed this?
Mark Smith
For what it's worth - I've had experience blowing up DV, Beta, Digi beta,
Super 16mm (through Digi Beta twice) and Hi Def to 35mm - to my eye the
best quality result was in the following order:
Super 16mm to Digi beta to 35mm (one grade was during film to video transfer,
the other was after the transfer to video). Hi Def to 35mm (graded after
online and before the 35mm burn) Digi Beta to 35mm (spirit was used after
the online, but I worked with the Digi Box pre-grading whilst shooting)
Beta to 35mm (1987 - with a grade after the online but before the 35mm
burn) DV to 35mm (material graded once before the cut - and after the
online but before 35mm burn).
Yes, I liked the super 16 to Digi over the Hi Def - this list is about
the transferring of media through other media so I've not included film
to film, and as for DV as a generation medium I've shot a few long form
dramas for then transferred to Digi for TX but with a "film look"
effect added in post (I'm not a convert); Equally I've shot a few Digi
Beta dramas with film look effect in post and it's good - it's a standard
here in the UK as opposed to shooting on super 16mm though that's still
done.
But in all of this what does best quality mean ? In my case it's where
the most "cinematic" image was achieved. Of course - the question
then arises what does "cinematic" mean?
Also, given Geoff's recent "questioning" of just how good Hi
Def currently is - there is also an issue of how much to settle for. Arguably
you should never settle for anything below top quality - but, if you shoot
on a format that is below that standard you have to buy into the "lesser"
quality as being part of the look. I'm still struggling with the issues
- Opinions anybody ?
Terry Flaxton (Brit based DP)
http://www.flaxton.btinternet.co.uk/terry1.htm
Terry Flaxton wrote :
>Digi Beta to 35mm (spirit was
used after the online, but I worked with the >Digi Box pre-grading
whilst shooting)
What would the Spirit be used for here? I'm confused, unless the end result
was meant to be tape, and the film out was to get a look...
Jeff Kreines
Mark Smith wrote :
>I have seen some of this effect
on a project I shot as it goes through the >post process.
Seems like a dumb path with lots of possible concatenation of compression
schemes.
Why not DVCPro HD into Avid via SD SDI (not component) and out to Digibeta?
Or do work tapes from DVCPro HD onto DigiBeta. A Meridien Avid at uncompressed
or 2:1 or even 3:1 to DigiBeta looks quite good. (I'm only going from
Digibeta originals from film (some through a D5HD generation) or Mini
DV right into the Avid via SDI.)
Nothing wrong with DVCam, but it's not a good intermediate format, as
it's 4:1:1 and 5:1 compressed. Think of it for origination only.
Jeff "uncompressed" Kreines
Terry Flaxton writes :
>But in all of this what does
best quality mean ? In my case it's where the >most "cinematic"
image was achieved.
Cinematic means many things but probably the most important in the context
of digital images is to TURN DOWN (OFF) THE APERATURE CORRECTOR. The long
slow roll-off characteristic in the modulation transfer characteristic
of film is completely different from the "100% depth of modulation
almost to the limit of the system resolution" then an extremely fast
roll-off to zero MTF of many digital systems. Aperture correction (enhancement)
is the prime contributor to the edgy television-like look.
Regards
John D. Lowry
Lowry Digital Images
Burbank CA
Jeff Kreines wrote :
>Seems like a dumb path with
lots of possible concatenation of >compression schemes.
I didn't say it was a smart path, and BTW I didn't design it either. Sometimes
things make a few too many u turns for my taste. Any way, I'm just reporting
what happened, not why it happened and sure there would be better ways
to do it, but sometimes, the editor/system that was planned for wasn't
available and other things happened. No worries in this case because there
will be an HD conform from the avid list and life goes on without the
concatenation of compression schemes. I was simply citing this particular
convoluted path as an example of how things pile up and wondering if any
one else has seen anything similar.
Mark Smith DP
Oh Seven Films Inc.
Robert Butche wrote :
>There is no guessing -- on either
end of the digital stream. The video >compressor easily
identifies redundant information from frame to frame.
I realise that this is the theory but the reality is that humans set the
level at which there is "no discernable difference" this is
where the guessing comes in.
One persons idea of "no discernable difference" is very different
from another’s "no discernable difference".
Then we have the effect of layered compression, every time it goes through
an up/down conversion it goes through a different set of "no discernable
difference" and these add up.
Concatenation.
Cheers
Geoff Boyle FBKS
Director of Photography
EU based
George C. Palmer writes :
>does anyone really believe that
"bumping up" or "up-rezing" an image >with
inherently limited bandwidth or resolution…actually
increases the >image quality of that image????
It's not really a matter of belief or theory. Whatever else uprezzing
does or doesn't do, it really does reduce aliasing. Compare a direct SD-to-film
transfer with an SD-to-HD-to film-transfer and you'll see what I mean.
And once the image is up-sampled to HD, you can even apply a touch of
sharpening without paying quite so serious an artefact penalty. You can
test this with stills in Photoshop : Start with a 640x480 image. Copy
it. Sharpen the copy and save it. Copy it again, then up-sample it by
a factor of 2, using cubic spline interpolation, then sharpen it the same
amount. Then compare the two images at the same screen size. The up-sampled
version will have appreciably more finesse, an less noise/grain as a by-product
of sharpening.
Talk to John Carlson at Monaco Labs in SF, and ask him why they bump SD
up to HD before outputting to film. It really *does* make a difference.
Certainly
not in *all* ways, but in *some* ways that do count.
Dan Drasin
Producer/DP
Marin County, CA
>There is no guessing -- on either
end of the digital stream. The video >compressor easily
identifies redundant information from frame to frame.
This only applies to Inter-Frame compression codecs. "a format that
has nothing to do with HD" and, to the best of my knowledge, all
professional recording formats use Intra-Frame compression only, which
follows a similar logic but within a frame and not between frames.
Also, another reason for converting 4:1:1 "a format that has nothing
to do with HD" to 4:2:2 DigiBeta is if any colour correction is happening
the 4:2:2 colour space will allow more subtle variations in the graded
colours.
Ben Allan ACS
Director of Photography
To All :
The original posting in this discussion thread was about providing those
without access to adequate funding for Hi-Def or Film origination, to
the creation of their projects. DV is certainly adequate to that task,
and yes, if some of the respondents are all to be believed, it may be
possible, using a number of processes to "sharpen" the DV image
enough to fool some of the people into believing that they have found
a magic pill. Aside for advocacy of those processes, I hope that these
processes actually work, for the sake of those here hopeful enough to
try them; I also hope that these processes don't add enough "fix-it-in-post"
processing costs to obviate the original goal of producing low cost masterpieces.
Nothing I have seen here convinces me that most of the presentations have
said that it is "possible" to perform sharpening, Lest we forget,
regardless of the efficacy of the DV "digital" recording format,
the cameras attached to all DV cameras contain :
1) very unsophisticated processing with virtually
no useful (even by analog camera standards), professional
quality, camera control handles,
2) dramatically small, Standard Definition,
IT imaging sensors with comparatively minute pixels and low
pixel counts, which yield dramatically reduced (with comparison
to larger sensors and film frames) dynamic range and resolution
and
3) as a result have few high quality lens's
available (NO HD lens's).
So the initial image is seriously compromised when compared to any professional
quality HD camera and even most film cameras. In my experience, even the
novice film/HD producer/director/writer has pretty lofty cinematic goals
in mind when visualizing the telling of their story. I am not arguing
against the use of DV technology in such low budget applications, as long
as the "up-rezing" they see as the means to that end can (beyond
theoretical the "devils advocacy" expressed in most of the respondent
posts here) produce a product that actually achieves those lofty visualization
dreams.
How many filmmakers, even novices, would admit having "compromise"
in their vocabularies? I submit that even if their purses dictate such
reality, they want their product to reflect the importance they attach
to their original concept. I do accept the notion that "sharpness"
can be added, but not resolution, that grading can add some limited expansion
of the original dynamic range, but not recover non-existent grey scale
values, BUT at what cost. Post processes, even if effective, add costs
back to budgets which don't imply the resources for such "fixes".
In my experience, most post production processes usually adds as much
or more costs to a production budget as using appropriate production tools
and techniques in the first place. If anyone out there knows where the
next low budget DV project can be truly upgraded via layered compression,
Viper-like/sophisticated color grading, or any of the purported (in this
discussion thread) appropriate, effective up-rezzing methodologies, at
a cost which preserves the initial "low budget" strategy and
which actually produces a measurably improved image, please name the place
and the projected cost.
To all those who don't have big budgets, no one will look down their nose
at your use of DV if you tell your story well; you may even earn broad
respect for overcoming your resource limitations. Many stories don't require
sophisticated lighting and imagery, just imaginative use of the tools
you have. If you succeed you will have done more than some who have all
the resources the bank can provide. But that success will never and can
never redefine those limited resources (DV) as equal in capability to
the higher level resource (HD or film). However, if and when cost effective
processing technology actually yields that capability, rendering the use
of DV as acceptable as film or HD in human perceptual terms, even the
35mm folks will be forced to consider such lower cost techniques.
Until then, my story is that silk purses and sows ears really are distinguishably
different, and I'm sticking to that story. By the way, I thought we had
all agreed
some weeks ago that DV was not HD and, therefore, didn't belong here as
a matter of discussion?????
GEORGE C. PALMER
HDPIX, INC.
HD and Digital Imaging Services
Hi,
Long time lurker on this list and now I have something to finally contribute.
My short film NIGHT LIGHT was shot NTSC mini" a format that has nothing
to do with HD" with the JVC GY" a format that has nothing to
do with HD"500 and I had to massage it (not up-rez) to HDCam for
this year's Sundance Film Festival. Here's what I did.
1) Captured and edited in "a format
that has nothing to do with HD"25 in FCP 3.0
2) Magic Bullet -- convert to 23.976P, de-artefact,
color correct -- in After Effects
3) Render out all 23,500 frames as Targa
D1 Sequences
4) Convert all frames into fractal files
(using Photoshop and the Genuine Fractals plug-in)
5) Generate the HD TGA frames based on the
fractal files (STNs)
6) Take TGA Sequences and make Cinewave HD
23.976P .moves
7) Drop back into FCP, sync up the audio
mix
8) Dump back to HDCam 1080/ 59.94i (Let Cine
handle the 3:2 insertion)
It was very, very time consuming, but it is the best looking "a format
that has nothing to do with HD" to HD transfer job I've seen. I experimented
using bilinear and bi-cubic interpolation, as well as some of the different
hardware scaling methods, but the fractal conversion yielded the best
results for my project. Some of the shots are beautiful and some are really
crap, but that’s the price you pay when shooting "a format
that has nothing to do with HD", which in my case, proved much cheaper
in the long run.
If any of you are at Sundance, check out my film, its in Shorts Program
III (the program guide says Program II, but its a *typo*)
Thanks,
Eric Escobar
>Even shooting with camera detail
down doesn't hide it enough, and >while a good DP can shoot
around most SDTV limitations, it's mighty >hard to avoid *any*
scene elements that call this out.
Any hints on where an old DP with no "a format that has nothing to
do with HD" to film experience could find a primer on what these
limits are and how to shoot around them. ie what elements "call these
out"
Thanks
Mark Baird
>Any hints on where an old DP
with no...(digital) to film experience could >find a primer
on what these limits are and how to shoot around them.
ie >what elements "call these out"
Any facility that does film-outs from digital sources should have a list
of suggestions somewhere on their website for shooting with a blow up
in mind.
The problem I run into is that most of these project don't ever get blown
up to 35mm, and some of the suggestions place limits on what you can do
in camera to create a certain look.
Here's a few links to facilities (no endorsement is intended) which have
suggestions posted on their site :
http://www.digitalfilmgroup.net/digital_info_menu.htm
http://www.dvfilm.com/faq.htm
http://www.swisseffects.ch/english/e_tape/pages/e_tape.htm
Jessica Gallant
Los Angeles based Director of Photography
West Coast Systems Administrator, Cinematography Mailing List
Thank you Jessica for the website listings of some post house specializing
in tape to film transfers. Their web pages offered almost as much information
that many of the contributors to the CML list, and I could actually understand
it.
Another reason why I have been a faithful member and will continue to
do so!
Allen S. Facemire
DoP IATSE 600
Atlanta, GA
www.saltrunproductions.com
Greetings :
Just a note of thanks for the range of expertise and opinion from the
world wide CML community. I would be interested in seeing the results
of Eric Escobar's complicated post process but I won't be going to Sundance.
If it does in fact accomplish good results that's fine but my original
contention was that is actually cheaper and less hassle shooting in HD
if one has to shoot on tape(a trend that is not going to go away any time
soon). It also appears that Eric may work for Apple and has access to
processes and/or engineers that many others may not(I'm guessing here).
Perhaps they can sell this expertise to the transfer houses.
My other point was that since we don't live in a perfect world it isn't
always about the absolute best image quality in any case. Otherwise we
would demand 70mm or Showscan or Imax. So, there is a place for these
low end formats and they will continue to improve, but if the people who
insist on using low cost formats don't recognize the need for a good DOP
then the results will continue to be uneven as they have been up to now.
As for myself, I'd love to see 35mm quality without 24 fps motion artefacts;
which is why I like 60P projection.
BTW, with regard to the Dalsa camera I was tipped off to it several months
by a colleague; who may actually be consulting on it's development. There
has been much confidentiality surrounding it and understandably so. I
really don't know much more than what's on the website but he did hint
that it might match or exceed the Viper, and that it will be unveiled
at NAB which I will not be attending either.
So some of you will see it before I will. However I may be able to co-ordinate
some tests next Spring or Summer and will be as eager as the rest of you
to see the results.
Lance Carlson
Cinematographer/Consultant
Toronto
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