View Full Version : New info at hdforindies
Adam C Lubkin
04-24-2007, 08:20 PM
Quoted from hdforindies.com:
"The much vaunted exposure control - here's my own notes from talking with David:
exposure control through EVF and (eventually through LCD) - is like a monochrome image with a false color LUT (LookUp Table) - top 20% runs yellow to orange to red to show "hotter" exposures, yellow is about as hot as you'd like to shoot to have some headroom. At the bottom end, used cool colors, light green to dark blue. * Instead of seeing shades of grey, see shades of color to know how "hot" your exposures are. It also works as a night site - otherwise tough to see if your exposure is focused or not. Graphical focus assistant not shown yet...durn."
Mike also has a nice summary and descriptions of accessories, etc.
Brook Willard
04-24-2007, 08:22 PM
Wow...
Stuart, is this different than the waveform and histogram that you showed me?
jbeale
04-24-2007, 08:24 PM
maybe some confusion between exposure control & focus control ?
Adam C Lubkin
04-24-2007, 08:33 PM
As David described it to me at NAB, it allows you to set both exposure and focus, on the fly.
Ralph Oshiro
04-24-2007, 09:33 PM
Did you not see the false color LUT, Brook? David gave me an excellent tutorial at the RED booth of the false color LUT (which, as I understood it, is designed for exposure indication--not focus). He even drew me some diagrams to explain the concept. Conversely, I never saw the waveform or histograms.
Mike Devlin
04-24-2007, 09:48 PM
The user manual for the AccuScene VF1280S MII describes this false color exposure feature with some photos and a chart mapping IRE to color. I assume that is now a feature of the RED viewfinder. I see that this is no longer on the AccuScene site (since RED acquired them) so I assume it would be inappropriate to post the manual here (it is copyrighted). No doubt RED is improving and tailoring the design to match the needs of a 4K camera. I am not sure how much has changed from the AccuScene to the new RED viewfinder, but they are starting from a pretty good point since AccuScene had a great viewfinder.
Brook Willard
04-24-2007, 09:50 PM
Perhaps this is exactly what I saw... you never know. Ironically with as much time as I spent at the booth, I spent a very short amount of time with the interface.
Nathan Troutman
04-24-2007, 10:06 PM
Wow...
Stuart, is this different than the waveform and histogram that you showed me?
It has a waveform and histogram viewer built in? Is this true? This would make so much sense. I've always wondered why it couldn't just be included as a display option. If you can show zebras why not give you something more complete?
Alex Boothby
04-24-2007, 10:22 PM
Fantastic update Mike - this is a very useful NAB overview.
Poi Boy
04-24-2007, 10:56 PM
I've had color coded exposure readings in my digital backs for 9 years. It is usefull but not that big a deal. I prefer a waveform wich I believe is in the evf as well
Aloha
-A
Alexander Nikishin
04-24-2007, 11:42 PM
Here's a link to the manual...
http://203.53.131.43/PDFs/Manuals-Other/Accuscene1280sMkII.pdf
Gavin Greenwalt
04-24-2007, 11:50 PM
I haven't used this on a camera before but Brazil R/S has it in the framebuffer. I actually haven't found it all that useful because I still can never tell if it's hot red or clipping red. I would hope they're combined with some sort of zebras or else I'll just rely on the good ol' histogram and parade waveform.
Edit: Ahh Magenta for clipping! See now that's something Brazil needs. That would work quite nicely.
Nick Shaw
04-25-2007, 03:49 AM
Actually the whole Accuscene site is still up:
http://www.accuscene.com/viewfinder.html
It's just their home page which is no longer there. Lots of info, including manuals. Hope it's ok to post this link, but anyone could find it with Google.
waveform seems to be a neat feature.
If somehow possible to record/store all information waveform gives you. Than it could be a really helpful feature minding effect shots. Light can be tricky sometimes with 3d/matte paintings if you dont have some good readings on site. Say you can transfer information to your post app. I guess that can help fine adjusting latitude for surface treatment. Combine that with some HDR footage on site and you get killer control.
MikeCurtis
04-25-2007, 11:19 AM
Thanks guys - direct link to the page in question:
http://www.hdforindies.com/2007/04/red-accessory-details-evf-lcd-red-arm.html
I've also updated it with some Q&A with Stuart and some other tidbits of info just to stuff them in somewhere (at bottom of article). There's also a link to pics I took of show, including closeups of the SuperGrip.
Jarred Land
04-25-2007, 11:31 PM
Curtis kicking ass as usual :)
Gavin Greenwalt
04-25-2007, 11:38 PM
waveform seems to be a neat feature.
If somehow possible to record/store all information waveform gives you. Than it could be a really helpful feature minding effect shots. Light can be tricky sometimes with 3d/matte paintings if you dont have some good readings on site. Say you can transfer information to your post app. I guess that can help fine adjusting latitude for surface treatment. Combine that with some HDR footage on site and you get killer control.
... I'm confused aren't you just suggesting to look at the Histogram on the footage?
... I'm confused aren't you just suggesting to look at the Histogram on the footage?
Im sorry for the confusion. I dident mean historgram I meant color defined exposure. My bad.
Stuart English
04-26-2007, 08:00 AM
This is the current set up -
EVF Only -
False Color Meter - only in EVF, potential for LCD in future (not a promise)
Overlays the entire image and forces it to monochrome....
EVF and LCD -
Histogram RGB histograms that appear under the main image
Waveform Luma waveform that appears under the main image
Focus Focus "waveform" that appears under the main image
Some or all of these were shown in prototype form at NAB ...