200D shoots raw video

Started by names_are_hard, February 09, 2024, 04:08:05 AM

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names_are_hard

#25
May 05, 2024, 12:56:12 AM
Quote from: falconWhat's the status of the 200D project? Is it getting close to release

I continue to work on it.  Dual iso will have a sensible, normal GUI soon.  Raw video will happen after that, perhaps another month or two.

falcon

#26
May 05, 2024, 10:23:31 PM
Quote from: names_are_hard on May 05, 2024, 12:56:12 AMI continue to work on it.  Dual iso will have a sensible, normal GUI soon.  Raw video will happen after that, perhaps another month or two.
Very nice!

falcon

#27
May 15, 2024, 05:21:21 PM
How close a relative is M100? If something happens, will it be an easy port?

kitor

#28
May 15, 2024, 05:25:25 PM
Won't happen. M100 runs PowerShot firmware flavour - thus it is CHDK target.
Too many Canon cameras.
If you have a dead R or RP mainboard (e.g. after camera repair) and want to donate for experiments, I'll cover shipping costs.

names_are_hard

#30
May 20, 2024, 06:44:16 PM
Quote from: iaburn on March 10, 2024, 07:39:31 PMI'm curious to see if there is a visible gain or not with dual ISO on the 200D  :D

I now have a decent set of test files.  Sunlit window scene with shadows and a range of colours.  Shots taken in 100/100 up to 100/3200.  Three sets, exposing for ISO 100: "ETTR-ish" (about 1 stop overexposed?), 2-stops under, and 4-stops under (this one includes 100/6400).  Why under?  Because Walter took a look at the first set and said they were weird; good highlight recovery but not much change to dark areas.  So perhaps 200D prefers it the opposite way to old cams.

If you want to compare, DM me for the links.  It's about 250MB per set.

iaburn

#31
Yesterday at 08:16:24 PM
Quote from: names_are_hard on May 20, 2024, 06:44:16 PMI now have a decent set of test files.  Sunlit window scene with shadows and a range of colours.  Shots taken in 100/100 up to 100/3200.  Three sets, exposing for ISO 100: "ETTR-ish" (about 1 stop overexposed?), 2-stops under, and 4-stops under (this one includes 100/6400).  Why under?  Because Walter took a look at the first set and said they were weird; good highlight recovery but not much change to dark areas.  So perhaps 200D prefers it the opposite way to old cams.

If you want to compare, DM me for the links.  It's about 250MB per set.

Very interesting, the ideal scenario for Dual ISO is when you ETTR at the base ISO. By underexposing you are just "wasting" dynamic range on the highlights, but it shouldn't affect the comparison if the dynamic range of the scene is wide enough.

I'm messaging you for the first set!  :D

names_are_hard

#32
Today at 02:41:27 AM
Quote from: iaburn on Yesterday at 08:16:24 PMVery interesting, the ideal scenario for Dual ISO is when you ETTR at the base ISO. By underexposing you are just "wasting" dynamic range on the highlights, but it shouldn't affect the comparison if the dynamic range of the scene is wide enough.

That's the conventional wisdom for ML Dual ISO, yes.  We're unsure it works the same way for 200D.  Links sent!

Will be good to get another opinion from someone who has experience working with these files.  I can clearly see it's exposing at two ISOs, it's not obvious to me if that helps.
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