extremely low light hdr 5d3 video

Started by 70MM13, July 24, 2020, 04:50:49 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

70MM13

shot at TNT iso 100, in near darkness, exposed to preserve the filament on the (night) light bulb visible in the scene.  the only light source was an ikea paper lamp in the distance.  you can see the shadows it casts when i move my hands around...

i could have added fill light, but that's not the point.  it was an exercise in what is possible.

there's no way you could push underexposed shadows this hard with stock canon 100 iso.  no way.  check out how beautiful the filament looks.

as always with my videos, zero noise reduction...

i'm not interested in the arguments from closed minds.  i'm only sharing this to encourage open minded people to try TNT!

check out the thread created by timbytheriver (the other T) for details on using tnt: https://www.magiclantern.fm/forum/index.php?topic=24702.0

https://youtu.be/wnIbh5_qc5s

here are links to my old howto guides:

https://www.youtube.com/watch?v=h7x_5SfdKgQ

https://www.youtube.com/watch?v=kwxX8H7dTdM

https://www.youtube.com/watch?v=Pvi4lwgKT9s

wib

EOS 5D3 123 crop_rec_4k_mlv_snd_isogain_1x3_presets_2020Dec11.5D3123

70MM13

i updated the first post with links to the thread and howto videos.

tnt is an easy to use setup for preamp optimisation on the 5d3.  it requires a bit of work to set up, but then it's super quick and easy to use...  every 5d3 video on my channel uses it.

wib

SO to sum up because I'm not sure I got it all but you manage to "reduce" the way the sensibilty works, than you can shoot with let's say 1600 without any noise ?

Does this module will work with Danne's 15 july build ?

I'm curious in this video, as it's the one you are talking about, how was set up the exposition and how did you color grade it after ?

EOS 5D3 123 crop_rec_4k_mlv_snd_isogain_1x3_presets_2020Dec11.5D3123

70MM13

it's nothing more than adjusting the preamp levels to _reduce_ noise in the darkest shadows.

i'm not into high iso for video because i want the most dynamic range.  if your scene cannot be lit enough for your needs, use faster glass before increasing the iso, unless you want clipped highlights.

using the optimised preamp setting i get the same dynamic range from 100-400 iso, and that's enough for me.  it starts to lose range at 800, and quite a bit at 1600.  mind you, if you need to shoot at 1600, you would have slightly cleaner shadows so it's still a benefit...

regarding the video you linked, that was just normal ambient room light, shot with tnt 200 iso.

i grade all my videos using resolve.  the only exception is the music video "wake up call" that i did exclusively with rawtherapee (not recommended!)

the video in question was exposed for highlights, and the shadows were lifted in post.  pretty standard stuff :)

wib

I just to make some test, it seems to record brighter than what you see, and actually gives less noise because in post I have to reduce the exposition. It seems interesting !
EOS 5D3 123 crop_rec_4k_mlv_snd_isogain_1x3_presets_2020Dec11.5D3123

70MM13


wib

what would we your recommended advise
EOS 5D3 123 crop_rec_4k_mlv_snd_isogain_1x3_presets_2020Dec11.5D3123

70MM13

sorry, i don't know what you are asking.  lost in translation...