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Messages - 70MM13

#51
the story continues...
on valentine's day the latest handful of chestnuts comes out of the refrigerator to start growing more trees!
i'll make a video about it.
there's a playlist on my channel called "the american chestnut" with more information about what's happening with my labour of love!
#52
Share Your Videos / Re: 5d3 ISO 200 in dim light
January 15, 2023, 10:43:06 AM
for dual iso in such an extreme situation the best results would probably be from a more extreme setting such as 100/1600...

but don't expect miracles from an unlit enclosed space and daylit scenery through a small window.  try adding very soft lighting to the room and a subtle key light to the subject to keep the "unlit" look and adjust the grading accordingly.

that will help more than anything else!
#53
Share Your Videos / Re: 5d3 ISO 200 in dim light
January 12, 2023, 03:15:15 PM
i really don't know...
once you see what i'm doing, you should try to reproduce it with your camera and hopefully it will become self-evident.  i'm optimising for resolve, and some of my camera workflow might be only possible on 5d3 at this time unless you can reproduce the setup on your 700d.  it still may "just work" (only for reducing pink sunspots)  if you follow the rest of the steps without the specific 5d3-only register settings.

it will make sense when you see the "how-to" video!
#54
Share Your Videos / Re: 5d3 ISO 200 in dim light
January 11, 2023, 02:51:36 PM
thank you!

by the way, i'm doing some new tests to try to completely eliminate the "pink sun" effect while filming.  in my latest video, i have the setting sun in the shot, behind my back, with no lights or reflectors, and i'm in the shadow of a huge tree!  now that is serious dynamic range! :)

so far, i've managed to get it down to just a few pixels, but i'm hoping to get it down to zero!

i'll be posting a video about this very soon, but i won't be sharing it on here.  anyone interested to see how i do it should subscribe to my channel...

peace to everyone!

https://www.youtube.com/watch?v=nId0fuauowc

I forgot to mention, watch the video in 4k!!
#55
i'm a little late to the 5d3 240mhz party, but here's my results!
in case the image doesn't work, it's 96 MB/S  :)

[gifv]49p54rd[/gifv]
#56
Share Your Videos / Re: 5d3 ISO 200 in dim light
January 10, 2023, 02:20:35 PM
there's more than one answer to the challenge of shooting in low light  ;)
#57
Share Your Videos / 5d3 ISO 200 in dim light
January 01, 2023, 07:03:35 PM
sometimes you want as much dynamic range as possible, even in very dim light, and with the 5d3 that means iso 200...

check out the beautiful detail on the LEDs in a nearly dark room, with the shadows severely lifted in post.

shot in 3616*1536 continuous (thanks bilal!), and upscaled to 3840 using sinc algorithm in resolve.

watch in 4k to avoid the horrible quality degradation of youtube imposed on videos with <3000 views.

best wishes to everyone!

https://youtu.be/M6U32od88EY
#59
Share Your Videos / 5D3 3616*1536 dark studio music video
September 08, 2022, 01:58:32 AM
seriously dim lighting except the vocal booth, which unfortunately was a little too bright!

https://www.youtube.com/watch?v=L9fS2DtvCj8
#60
excellent news!
regarding the 5d3, was any testing done to determine if the maximum recording bitrate using card spanning and overclock increases beyond the "limit" we found when overclocking to 160MHz?
#61
I'm now making the occasional Blender3D tutorial video.  This one (the second in the series) covers workarounds for the "eccentric" rigid body simulation to make a chain that doesn't break:

https://www.youtube.com/watch?v=Jdy68qLdOR8
#62
A short but sweet exploration of the forest in early morning.  The extreme dynamic range isn't even apparent in the resulting video because it was so easily controlled!
Every shot has both clipped highlights and lifted shadows, sometimes by many stops (such as the closeup of the chestnut tree bark).
Watch in 4k!
https://www.youtube.com/watch?v=I2LpW7Ofn90
#63
General Help Q&A / Re: Aperture Blade Lock?
July 10, 2022, 11:41:10 AM
Get a manual aperture lens.  Rokinon cine lenses are really good and very affordable!  Set it and forget it!
#64
if you launch mlvapp using a command prompt, you might see what is going wrong... maybe ;)
#65
Share Your Videos / dual iso clipping improved
June 22, 2022, 03:08:29 AM
timbytheriver's dolby vision/rec709 trick with resolve made dealing with the clipped flames in the last shot of this video not only better looking, but far easier to deal with.

in the original grade, i had to resort to trickery such as adding another node to isolate the clipped highlights to desaturate them and add back a false colour.  not only was it no longer required but the natural colour actually looks good even though it is clipped...

https://www.youtube.com/watch?v=KiJKKruptFM
#66
Camera-specific Development / Re: Canon EOS R5 / R6
June 12, 2022, 05:22:59 PM
That's a great comparison, thanks very much!
The darks were far better on the R5 also.  Nice and crisp detail on the trunk of the beech tree.  The 6D was just mud.

If you are so motivated, a comparison of a very dark scene would be much appreciated, with the shadows lifted several stops...
#67
I'm curious if anyone who is familiar with the current approach would have any thoughts or inspiration resulting from reading it.
#68
does no one have any thoughts about his approach?
#69
pretty solid low light high dynamic range...
i re-rendered the closeups of the animated mouth, taking advantage of some of the new features in blender.  the differences are obvious between the closeups and the prior version in the camera-captured scenes:
https://www.youtube.com/watch?v=RIecXsKwFXc
#70
Academic Corner / ML dual iso in academic study
May 28, 2022, 01:15:28 PM
Has everyone seen this paper from 2016?
I'm really curious about thoughts regarding this, particularly the performance of the ML method, from the upper echelons...
Dual iso has so much promise.  It requires a new approach to achieve any of its potential.

https://repositori.upf.edu/bitstream/handle/10230/28210/Bertalmio_ElectronicImaging2016_high.pdf?sequence=1&isAllowed=y
#71
Also it is best to use EXR format if you want to load the files into blender...
#72
i went against my instinct to make things as dark as possible on this dolby remaster, and it really highlights the difference it makes.  the dimly lit studio looks radiant!
https://www.youtube.com/watch?v=bLHAWLbUWC8
#73
if anyone is interested in blender, or just having fun with particle physics:
https://www.youtube.com/watch?v=GSmiN4fw_pY
#74
Post-processing Workflow / Re: fastcinemadng
May 04, 2022, 01:12:05 PM
I hope that "yet" is pointing to a brighter future.

I hope you get it working.  The painfully slow processing times and flickering issues make it nearly useless currently.
#75
Post-processing Workflow / Re: fastcinemadng
May 03, 2022, 12:41:21 PM
Is dual ISO a possibility for this software?