So I just started with apple color, and I've seen it's a great color grading software, with all of the secondaries and effect rooms etc. But I'm having a little problem, sometimes after grading, I get an image quality very grainy, i have tried to lower this with the grain reduction in the FXroom, but it's not enough. This issue comes out after making some changes in the secondaries, using like 3, 4 or 5 different layers, for separating different colors or after working only with Luma or any of the HSL keys, I'm using a T2i, and I'm converting to Apple ProRes 422(HQ) which I keep until exporting from FCP, and after exporting and having my final self-contained movie, is when I can see all of the noise, 'cause I have a small monitor(macbook pro 15''), Is there something that could help me not to get this grainy issue like changing bit color depth?, or should I keep simple when I color grade?, hope somebody can help 'cause one of the main reasons I use apple color is because of it's great control at the secondaries, thanks...
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Apple Color very grainy after grading...
- Thread starter Colin Gama
- Start date
I noticed the same thing with my footage. It seemed most pronounced on the darker scenes. I just chalked it up to my increasing the contrast.
I just don't know what happened but the last correction I did went pretty well, and I used apple color secondaries with a lot of layers, the images have a little grain that can only be noticed if I play the video in HD, but actually it's a kind of film grain which looks good, It was made with a different video, I guess this time my exposure while shooting was better... here is the picture ( http://www.flickr.com/photos/cinescuela2011/5372077962/ ) and the uncorrected ( http://www.flickr.com/photos/cinescuela2011/5372088282/ ) and here is a picture with the noise, which is kind of hard to see it since it's not video,
( http://www.flickr.com/photos/cinescuela2011/5371584651/ )... and the uncorrected ( http://www.flickr.com/photos/cinescuela2011/5372200506/ ) BTW, the first comparisons were shot with a 200 ISO and the second ones with a 400 ISO... so why do you think I've got more noise in one than in the other one?... Or do you guys think or know if 400 ISO gives you more grain than 200 ISO(I don't really think so)?... I don't know too much, but for what I've been experiencing, if you have a better tonal range while shooting, your image will not suffer too much while color correcting... gracias...
Looks nice. I dont know if it is your intent or not but you are crushing your blacks, losing most of the detail in your shadows, which you may want to watch out for.
changing the ISO will indeed give you more grain. Lower = less, higher = more.
http://en.wikipedia.org/wiki/Image_noise#Low-_and_high-ISO_noise_examples
In DSLR video, the ISO is the same as the Gain in older video recorders... and the general rule of thumb is, never, ever change it from the default. It's like distortion in audio, you're turning the video brightness up artificially, not optically, and in the same vein as "digital zoom bad, optical good" optical is the only way you want to change the brightness/exposure - and since we're shooting video, shutter shouldn't be changed except for effect - so iris and lighting are your options.
I'll be taking a look at the images here shortly and let you know what I think from them.
http://en.wikipedia.org/wiki/Image_noise#Low-_and_high-ISO_noise_examples
In DSLR video, the ISO is the same as the Gain in older video recorders... and the general rule of thumb is, never, ever change it from the default. It's like distortion in audio, you're turning the video brightness up artificially, not optically, and in the same vein as "digital zoom bad, optical good" optical is the only way you want to change the brightness/exposure - and since we're shooting video, shutter shouldn't be changed except for effect - so iris and lighting are your options.
I'll be taking a look at the images here shortly and let you know what I think from them.
In the rooftop shot, you're pushing the saturation up pretty hard, which could be contributing to the problem... in the other, you're not pulling up too much, but down. Darkening is free, but lightening a shot reveals the grain. I almost always prefer to slightly overexpose a shot in digital than risk having an underexposed shot. I also try to NEVER have a shot blow out (delicate balance between the two). So I'll add light to the foreground or darken the background to keep everything within range whenever possible. That way, I can always darken later without having grain revealed (especially bad in DV).
Yes, you're right, I just notice that with the last video I shot, and also, one of the big problems here is that I'm not planning out what looks I am going to give to my footage, 'cause I'm just experimenting a little bit, but that should be something to consider, but anyway, do you think if I saturate the image in the camera options(if i want a well saturated image), and then maybe a little bit more in apple color, should this give the same grain?, anyway I'm going to try this out...