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Messages - 70MM13

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Share Your Videos / Re: 5d3 3x3 vs 1x1 modes, a new question...
« on: Yesterday at 03:33:40 PM »
thanks for pointing out my error.

that was the wrong timestamp!  that's the 3616 shot, so it should look amazing :)

the correct time for the ugly shot is 8:50...  i'll change the original post.

Share Your Videos / 5d3 3x3 vs 1x1 modes, a new question...
« on: Yesterday at 10:59:48 AM »
An additional note regarding the 5d3:  since it is now capable of such high speed data writing, 1920 probably wouldn't require data compression, freeing up CPU resources for resampling.


I intended to shoot this video at 3616x1536, but there was a problem, even with card spanning and sd 240mhz overclock...

because of the bare branches on all the trees in the forest, the scene is just too complicated for that resolution, even when underexposed!

i had already shot the "beauty shot" for the middle of the video of the baby chestnut in the morning sunlight at that resolution, but when i got immediate sudden stops repeatedly in the forest i decided to shoot this talk at 1920 for reliability, using 3x3 mode since i was shooting at f/2.8 so there would be no problem with aliasing and moire on all the branches of the trees.

i wanted maximum detail on the closing shot of the cloudy sunset through the trees, so i shot that using 1x1 mode.

i was really surprised when i was editing the video to find that there was so much aliasing on the 1x1 shot!

to see the 1x1 footage, skip to 8:50 and pause it before the messages pop up for other videos.  the problem is very clear in the upper left corner of the screen.

i used 4x supersampling in resolve with gaussian sampling to minimize the problem, but it is still bad.

seeing this made me wonder if it is possible to do better resampling (even simple bilinear) of the full sensor down to 1920 instead of the horrible binning.  i know that it is beyond the capabilities of the cpu in most of these cameras, but has anyone done any experiments with this at all?  maybe certain dual cpu cameras could do it?  it makes me wonder if this could be done well in the very recent crop sensor models that have a newer (faster?) cpu.

it's just a thought...

on another note, if anyone is interested i could share a full sensor resolution still of the extremely challenging forest shot to use for a "stress test" of card overclocking.  if you print it out at full resolution, it could be useful as a "standard" torture test.  there was no wind at all in the forest and the camera was on a locked tripod, so a still should be just as difficult, especially with perfect exposure.

view the video at 4k, of course.

Share Your Videos / Re: 5d3 3k super sharp video
« on: March 16, 2023, 03:19:17 AM »
here's those frames:

the frame with the sunlit cut log showcases how well mlvapp handles highlight reconstruction when only one channel is clipped.  i intentionally clipped the red channel on this shot to get enough of the dark scene at the beginning of the shot.

all that is required to correct it in mlvapp is to enable highlight reconstruction and then pull back the highlights just enough to get red of the clipping on the red channel in the histogram, and suddenly you can see the nice detail in the sunlit surface of the cut log, with no pink highlights.

it was a lot harder to do this in resolve!

Share Your Videos / 5d3 3k super sharp video
« on: March 12, 2023, 01:22:31 PM »
with the renewed debate about 3k, i decided to shoot my latest forest video in 3k, utilizing resolve's superscaling algorithm to bring it up to 4k using 4X upscaling:

must view at 4k to see it correctly!  check out the incredible smoothness of the razor sharp spider webs that are clipping in the sunlight...

ps: i'll send some frames to ml700d

Share Your Videos / Re: macro video 5d3 raw
« on: March 08, 2023, 11:54:47 AM »
my internet connection is quite slow here in the forest so i can send you some frames if that is ok for you?
it sometimes takes a day to upload a compressed hevc to youtube...

Share Your Videos / Re: macro video 5d3 raw
« on: March 07, 2023, 01:52:34 PM »
I used resolve for grading.  i use MLVFS for instant grading.  put the card into the reader, and a few clicks later it's ready to edit and grade!  Outputting to NV-HEVC is ridiculously fast.  in this case, from camera to uploading graded video in a few minutes...

the lens used is sigma 105mm F/2.8 IS.
300mm focal distance for 1:1

Share Your Videos / Re: macro video 5d3 raw
« on: March 06, 2023, 01:29:24 PM »
focal length was 12 inches.

i actually like a bit of movement when doing a focus pull, plus the branches are moving in the wind...

most of all, i'm just too lazy to do software stabilization!  :P


Share Your Videos / macro video 5d3 raw
« on: March 06, 2023, 09:40:51 AM »
IS was a lifesaver for a handheld focus pull at maximum closeup on the tiny redwood bud!

watch in 4k to bypass youtube quality degradation...

Share Your Videos / Re: Global warming video: 5d3 raw
« on: February 22, 2023, 05:31:48 PM »
Everything's beautiful when filmed with magic lantern!

Thanks to you wonderful people for all you do:  keeping these old cameras going...

Share Your Videos / Global warming video: 5d3 raw
« on: February 22, 2023, 12:51:42 PM »
The winter that wasn't...

Long point, Ontario - February 20, 2023
View in 4K for original quality.

update (feb 2023) : Dokan version is recommended

mine is

i hope that fixes it for you... fingers crossed!

I am using win10x64 with mlvfs and it is rock solid.  i have it packaged in the file i linked in the opening post of this thread:

are we getting close to a new mlv app official version?
i'd like to try it again comparing to resolve, and any extra speed for the windows version would be most welcomed!

Share Your Videos / Re: Extreme dynamic range in the forest - 5D3
« on: January 18, 2023, 11:33:46 AM »
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!

Share Your Videos / Re: 5d3 ISO 200 in dim light
« on: 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!

Share Your Videos / Re: 5d3 ISO 200 in dim light
« on: 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!

Share Your Videos / Re: 5d3 ISO 200 in dim light
« on: 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!

I forgot to mention, watch the video in 4k!!

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  :)

Share Your Videos / Re: 5d3 ISO 200 in dim light
« on: January 10, 2023, 02:20:35 PM »
there's more than one answer to the challenge of shooting in low light  ;)

Share Your Videos / 5d3 ISO 200 in dim light
« on: 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!

Academic Corner / interesting image compression!
« on: September 28, 2022, 02:21:17 PM »

Share Your Videos / 5D3 3616*1536 dark studio music video
« on: September 08, 2022, 01:58:32 AM »
seriously dim lighting except the vocal booth, which unfortunately was a little too bright!

General Chat / Re: Selling a new 240 MHz preset for 5D3/EOS M/100D
« on: September 08, 2022, 01:55:03 AM »
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?

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:

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