KarimNassar

HurtinMinorKey says that in film mode you would get better monitor feedback. I don't what we used on set as I was not the camera operator. Something to try. Like you said this is the issue I am referring to, the best image quality comes with over exposing. They call it ettr which is common recommended practice with a lot of cameras, but in truth ettr on other cameras is never that extreme, on the bmcc really feels like overexposing until no zebras are seen. The gain in quality is significant as opposed to correctly exposing using the vectorscope, it is well demonstrated in the video. As of now utilizing this technique would be fine in daylight or situations where you don't control the light. But when working with lighting the overexposed feedback becomes an issue. Like you said and ettr mode would be the much needed fix. A monitor feedback that compensates for the overexposure so you can work on your lighting properly. Maybe some monitors can lower the exposure of the signal they are fed? Not just lower the screen brightness as that would be useless.

I assumed so, good. I am going to wait for raw footage and see how good it is. But with the speedbooster, its form factor and its price, this might be a very cool camera.

Perfect video to represent the issue thank you. See the end of the video with the kitten:

Sorry everyone made a mistake, everything I said is correct both from my experience and exposure recommendation from blackmagic forums. But I was mislead by the author of the video as he states "straight from camera". Since he then grades in camera raw, I believe his "straight from camera" is actually straight from camera raw. Which accentuates the effect and is not a fair representation of the issue. Edited the original post.

I believe the owner is misunderstanding his camera. He believes it holds heavily overexposed information and has the most extreme dynamic range in highlights ever. Which is not the case of course. It is because of this odd aspect of the bmcc where you cannot trust the vectorscope and you have to overexpose till you hit zebras. You get overexposed feedback from your monitor when actually it is correctly exposed. Zebras are actually the only correct information on overexposure, as long as they don't show, even if the vectorscope is off and the image seems heavily over exposed, you have highlight information.

It is only that extreme when you open the footage in camera raw. Camera raw does not interpret the footage correctly. But when shooting you are heavily over exposing till you hit zebras and you are discovering what your footage actually looks like when you open it on the computer. Which is a bad workflow imo and I have not experienced this with any other camera. Maybe this video is to extreme to illustrate my point.

you think this is a show off video? As in look much I can overexpose and this amazing sensor holds all the information? It is not. No sensor today can be that over exposed and retain highlight information to that extent. There is something odd with that camera in that aspect.

thank you for this video Andrew, downloaded the original file. The carousel shots look great. And the lens and speedbooster combo is absolutely fantastic, very interesting article. Now there a couple odd things with the footage to me, quality varies a lot. First carousel shots look great. But what is the deal with the wobly distortion of the tower? The shot is almost steady, should not be a rolling shutter issue? Did twixtor do this? And the pratergarden sign shot looks very bad, very videoish mushy on the leaves, and there seems to be some red noise bleed from the red letters on the white panel. And the night shot of the tree branches with the lights, again very odd wobly/shaky/blury issue. Again from twixtor? thanks

I stumbled on this video and it displays perfectly the biggest flaw that I had the displeasure to work with on that camera: https://vimeo.com/76824060 *** EDIT WITH WORKAROUND *** There is a clever trick to work around this issue. Thanks to Axel for digging it up. Since the bmcc records raw, and when shooting raw you keep the actual recorded footage of the sensor, and an adjustment such as iso, is only kept written alongside the file in the metadata, what you can do is lower the iso until your image becomes decent. In post you can then bring it back down to the native 800iso. Not a perfect fix, as we would need to know how much of an increment we would need to exactly counter the screen displayed over exposure, but a nice workaround. *** EDIT WITH WORKAROUND *** When you work as a dp on a film, You need the best visual feedback possible through the monitor in order to frame and work on your lighting adequately. Does not need to be perfectly accurate, but the more the better, especially when working with lighting equipment to adjust your lighting. You need proper feedback of how soft your fill light is, how strong your rim light and with what fall off etc... And you need to have the vectorscope, as the visual feedback fools you in terms of recorded data, to get the best exposure possible on your camera, and make decisions on what you want to preserve, whether highlights or shadow or a balance of both, if the situation demands it. Now with the bmcc, you have to extremely over expose your image to get best image quality. The result is a completely washed out image through the monitor, good luck properly fine tuning your different lights with that. And you have to disregard the vectorscope, because if you use it to expose properly you will actually be underexposed. You have instead to completely over expose until you see zebras, meaning no proper control over exposure. This is a major flaw, no professional camera should disregard the vectorscope and provide such inaccurate visual feedback. Now let me know if I missed something here

  Anybody who has the opportunity please try it on a full frame sensor. Mark III with magic lantern or scarlet if you have access to one. Get your step rings ready, back filter size is 50mm so get the one you need to screw on your 50mm focal length lens :-) thanks!

Pricing is very good. Still have to see what the new flares look like though.   Any 50mm full frame footage coming?

Hello everyone here is my latest video:   very happy with the colors and tonality hope you will like it as well   https://vimeo.com/74948973  

  yes 77mm is for the front for sure. Really looking forward to Andrews footage

  that is very good news. what is the filter size on the back?

so the widest you can go on full frame sensors is 50mm?

first a 4k phone now one that shoots 120fps. crazy.

so let me get this straight and correct me if I am wrong   - all cameras so far have had some release date delays, one being extremely ridiculous regarding the original bmcc   - all cameras have had some sort of defect/issue with the sensor   - their new announced 4k camera has actually worse dynamic range than their original one   ...not trusting that company any time soon. Really surprised people are not giving up on them already.

Depends on the available images size of the sensor   regarding  the red epic:   shot in 4k HD at 3840/2160   croped at 2.39:1 : 3840/1607   shot in 5k FF at 5120/2700   croped at 2.39:1 : 5120/2142

hello everyone, teaching myself video retouching:   Hope you will find interesting, more info on vimeo   https://vimeo.com/72912354  

Hello everyone, I worked as a dp on this short by Remo Pini.   It was with the bmcc 2k version, my first time using this camera.   If you have any questions let me know   http://vimeo.com/72492685  

Here is the latest test to date:     https://vimeo.com/67088840     I gave a shot at a quick portrait with the mx in a controlled light environment.   This is were any camera would shine, but damn! The picture quality is amazing even at 4k.   The images were plenty sharp and I did not need to sharpen in post at all.   In terms of image quality those are the best images I was able to pull out of the mx as of now.   Starting to get more comfortable with the camera. :-)   And some 4k real size madness: click on the link and then click on the loupe to get it to full size!   http://www.postprod.ch/clients/captures/fullres.jpg  

very nice work. I am on windows as well so sadly cannot try it. But I like what I have seen in the video. great work

  thank you! I want an epic dragon too haha     nikon 105 f/2.8 vr     thank you much appreciated

Hello everyone,   I started testing my 16F on my red one mx.   The 4k anamorphic mode is quite handy, gives the correct aspect ratio with the 2x squeeze of the 16f. And it directly feeds desqueezed footage out of the camera no need for a monitor that has this function.   Tested on the 50mm and 85mm. Need to see if it is possible to go lower. It should be because there is a 3k and 2k anamode that crops into the sensor so I feel like even if 28mm shows vignetting at 4k, it might not at 3 or 2.   Here is the first vid shot with the 4k ana mode:       https://vimeo.com/66549568     This one was shot with the 4k widescreen mode, giving a wider aspect ratio. And a close to 9k image when desqueezing horizontally...     https://vimeo.com/66459473    

very nice work. Great look interesting shots and compositions. The distorted/wobbly perspective that is present most noticeably in the first group shot is a bit of an issue to me. again very nice