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Thursday, December 22, 2011

HDR From Magic Lantern ? Sort of

Announced a day or two ago the folks creating magic lantern have announced bring HDR to eos cameras. Sort of. Its a hacked 2 frame expsoure scheme with one normal frame and 4+ stop exposed frame. That means you have to shoot 60fps to get 30fps, with the obvious problems like what if things move enough during those frames that the images don't align. Ok, maybe talking heads might work, but I think with a lot of other things it won't. 

And I Quote from their forum

" Frame rate is an issue. In this test, the raw data was shot at 25 FPS meaning the effective output rate was 12.5 FPS. So if we want 30 FPS then we have to shoot at 60 (bummer). Since we are peaked at 1080p @ 30 FPS, and 720p @ 60 FPS, we can only do HDR 1080p @ 15 FPS and HDR 720p @ 30 FPS. Rather, with the Scarlet you should be able to do 3k @ 30 FPS with HDRx if I remember correctly."

thats right, in 1080 your max frame rate is 30 so this is 15fps output. 720 isn't so great with these cameras, but you could get 60->30. Its a fun experiment and  not a practical production tool.


Don't get me wrong, I really like what these guys are trying to do, but ML just isn't practical to use on real production work where you are running around shooting like crazy and dealing with all the things you need to. The very last thing I want to worry about is loading ML every time the camera gets shut off. Then if you do like most folks and format your cards clear in the camera, you have to reload ML onto the cards. Really not practical !

So my challenge to the ML guys - load your code into the camera's firmware assuming there is room for it.