I returned on Sunday from a 9-day trip to the Canadian Rockies, staying outside of the town of Banff. It wasn’t specifically a photographic trip. It was mainly a family holiday. But, of course, I planned to make photographs. What kind of photographs? I thought a little landscape work even though the times of best… [Read More]
Archives for 2014
Nikon D810 high-ISO noise reduction
Yesterday’s experiments with the D810 dark-field noise, which showed that Nikon employs some low-pass filtering when long exposure noise reduction is turned on, made me wonder if there was any similar filtering at high ISO settings, a la the Sony a7S. I looked at one of the green channels of exposures made at ISO 64… [Read More]
Nikon D810 noise reduction raw processing
Yesterday I reported on some of the processing the D810 does to raw files, apparently in an attempt to reduce noise. A few weeks ago, I published these curves which look at dark-field noise vs shutter speed with the in-camera long exposure noise reduction on and off. You will note that there is some processing… [Read More]
Nikon D810 long exposure noise reduction
There has been some discussion on the web about long-exposure noise reduction in the Nikon D810 that occurs even when the menu setting for such process is set to off. I have seen some indications of this kind of processing in my dark-field versus shutter speed tests. Now that I have a tool for analyzing… [Read More]
CCD vs CMOS: an end to the war?
“What war?” you say, “CMOS won that war a long time ago.” If the criterion is chips shipped, I agree. But CCDs have their fans in the photographic community, and they tend to be vocal. I’m from Missouri about the supposed color rendering advantages of CCD’s, and I really don’t like the poor dynamic range… [Read More]
- « Previous Page
- 1
- …
- 18
- 19
- 20
- 21
- 22
- …
- 62
- Next Page »