Bit of a mystery here: any ideas?
I've recently acquired a Viselex Rhinocam at a very bargain price and stuck a Pentax 645 75mm 2.8 on it, to see whether I like it or not.
If you don't know how the Rhinocam works, you can Google it, but the only thing you really need to know here is that there's no way the lens can be responsible for my problems. It's not talking to the camera, and its aperture is fixed with a ring.
What's troubling me is that I have my X-T10 completely in manual mode. Fixed exposure of 1 s, fixed ISO of 200, fixed WB even though I'm shooting RAW+JPG. I'm in S mode, so no bracketing. The shots are taken a second or two apart under constant illumination.
And yet, consecutive shots appear to have quite different exposures. I've composited two of them together in PS so you can see how different they are. These are RAWs SOOC and into PS via LR, but much the same is seen with JPGs.
Any ideas? Is my camera simply on the fritz?! Of course, the exposure difference can be adjusted for, but I'd love to know where it's arising.
