All parameters comparison of different cameras idea/request

J

Joshua_G

Well-known member
AFAIK, the video IQ of different cameras is being determined by the following parameters:
DR, rolling shutter time, resolution frame rates (1080p 60 etc.), resolution sharpness, color science, internal recording parameters (codec, bitrate, bit depth and color subsampling) and HDMI Out parameters.

So far there is a great rolling shutter comparison by Samuel H in the sticky here.
It would be great if there would be a comparison of other parameters as well, possibly in a kind of a spreadsheet.
Some parameters can be derived from the manufacturers' datasheets.
Sharpness need be measured and compared,
Color science is probably given to subjective impression and evaluation.

Is anyone willing to do such a comparison?
 
You already mentioned my RS measurements (here). I also compiled slashcam.de results regarding sharpness, here. I don't think there's a simple way to turn all those into numbers, but I sorted them out subjectively, if that helps you. In any case I only took some slashcam.de results, they have tested many more cameras.

And regarding DR... it's not easy to put a number on this one. The usual "14 stops" claims are almost always nonsense. And I found that the measure I care about is the relatively subjective "usable DR" measure, not the more objective but less informative "absolute DR" that those "14 stops" claims are based on. So: I wouldn't compare numbers from different tests, even less from different sources. Which means anything you find (like this) is probably going to be limited to a small number of cameras.
 
Hi Samuel,
Your work is highly regarded and it is what made me think about a list comparing few parameters.
As for sharpness, your subjective sorting seems to be as good as it can get.
As for DR, your 'usable DR' is indeed much better than the manufacturers' claims, which may be only marketing statements. However, it may be useful should you add 'heavy NR' to the other cameras, besides GH4. This way the comparison will be more comprehensive.

Would you care to have the 3 tables on one webpage, either here or your own?
If yes, it will enable easy comparison of those 3 parameters in one glance, instead of going through 3 different webpages.

Should there be an interest, I'm willing to upload a spreadsheet with all the manufacturers' technical details, either here or on google.docs.
 
You must log in or register to reply here.
Back
Top