This is one in a series of posts on the Fujifilm GFX 50S and 50R. You should be able to find all the posts about that camera in the Category List on the right sidebar, below the Articles widget. There’s a drop-down menu there that you can use to get to all the posts in… [Read More]
Archives for 2019
Averaging images in Photoshop
Phase One just introduced an update to the IQ4 cameras that allows in-camera capture and averaging of groups of images. If the camera position is fixed, this technique can have the effect of simultaneously: Allowing long exposure times without the need for a neutral density filter. Deceasing the amount of noise in the final image… [Read More]
Is the GFX 100 unfocused?
There are some who are saying that the GFX 100 is trying to be all things to all (medium format) photographers, and suffers for it. That resonates with me. I felt the same way about the D850. The D850 turned out to be a highly popular camera, and has probably made Nikon a bundle of… [Read More]
On-sensor PDAF misconceptions
The new GFX 100 has on-sensor phase detection autofocus (OSPDAF, or, for the rest of this post, since we’re not talking about SLR’s, just PDAF). Bill Claff has already determined that the camera uses 18-row spacing. This link will show you to the evidence of that. The camera is not yet shipping to the general… [Read More]
Trust me
I recently had an interesting discussion about raw precision and dithering with a person who works for a high-end camera retailer. We kept talking past each other. I’d start talking about read noise and the various studies – including my own – that attempted to quantify how much dither is adequate. He’d say that 16-bit… [Read More]
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