Archives for October 2017

This is the fifth post in a series of Nikon D850 tests. The series starts here. I made a series of dark-field exposures at ISO 1000 at all the timed shutter speeds that the D850 supports, with LENR off. I measured the rms read noise in counts (data numbers, if you prefer) in a 400×400 pixel… [Read More]

This is the third post in a series of Nikon D850 tests. The series starts here. Yesterday, I showed you some dark-file histograms from the D850, using the mechanical shutter set to 1/1600 second. Today, I’ll show you the result of an analysis of the same files I used for yesterday’s post. I measured the ratio… [Read More]

This is the second post in a series of Nikon D850 tests. The series starts here. You can tell a lot about how a camera works with the lens cap on. In this post, I’m going to take a look at the histograms of the entire frame of D850 dark-field images, all at 1/1600 second (and… [Read More]

This is the first post in a series about the Nikon D850. The best way to navigate to the other posts is go to the widget on the right (you may have to scroll down a bit) labeled “Category List”. It has a drop-down menu that has a category called “D850”. If you pick that from… [Read More]