Well, my 5D4 has arrived but I won't get time to play with it until this weekend. I could try to shoot some comparison footage - would you like to see any formats in particular?
Yes, please.
Our friends from darktable are also looking for samples to add support for 5D4 in their next version, so I'm including their requirements as well.
To check white levels (for darktable):
- take a picture at every single ISO, in both dual pixel and regular (full-sized) raw mode.
- every picture should have some overexposed highlights.
To check crop area (for darktable):
- a fully clipped sample at ISO 100, 30s, fully open aperture. Both dual and regular.
For color profiling:
- preferred (for darktable):
https://encrypted.pcode.nl/blog/2010/06/28/darktable-camera-color-profiling/ - easier (good enough for me): a static colorful scene, taken with both 5D4 and another full-frame Canon camera. Same settings, same lens, same framing. Both sunlight and tungsten light (doesn't have to be the same scene). Regular raw only, ISO 100.
For checking the dynamic range and SNR curve:
- prepare a HDR static scene (a desk lamp pointed towards the camera, and some black items near it, something like
this).
- if you are in PAL land, and your light source flickers, use a shutter speed of 1/50, 1/25 and so on.
- defocus the lens
- for every ISO:
- choose a shutter speed and aperture that gives some clipped highlights and some deep shadows in the same picture
- take two pictures using the built-in intervalometer (no motion between them)
- take a bracketed set of images, centered at the settings used for the previous step (5 x 1 EV should be fine).
- dual raw only.
For playing with the dual pixel refocusing tricks:
- a resolution chart or some fine print, taken with perfect focus, front focus (various degrees) and back focus (various degrees).
- any other test pictures you consider relevant for this feature, focus-bracketed in the same way.
- repeat at various apertures and focus distances (not extensive coverage, just some random configurations of your choice)
- ISO 100, dual raw only, with as little camera motion as possible.
For playing with super-resolution tricks (you know, getting a 60-megapixel picture):
- with a zoom lens, take pictures of something with fine details (resolution chart, fine print, textures that give heavy aliasing, whatever) at a few focal lengths, with slightly bracketed focus, at the aperture setting where your lens is the sharpest.
- ISO 100, dual raw only, with as little camera motion as possible.
You don't have to do all of these at once; it will probably take more than one weekend to capture everything I've asked for. And it will probably take me months to analyze all that
For me, individual files on a FTP server would work best, but archives (separate for each subtask) should work as well. I prefer simple links (accessible from a text-based browser) and files named properly (so I can recognize what they are before downloading).
Thanks, hope my request is not too overwhelming. Of course, other 5D4 owners are welcome to help.
