Originally posted by MJKoski I got some kind of rare unit. This 4x60sec sensor shift panorama with focus stack has ZERO white dots. No LENR used.
Irix 15mm, Irix ND16 gel filter on rear slot and 95mm Irix CPL filter. Ambient temp about +15C. I would say this is word class long exposure performance in FF camp. Exiftool (to make the RAW appear as MK-1 file) and LR used for PEF conversion.
MJKoski Very nicely captured. Beautiful images.
I don't think it is a special unit I just think what you are seeing is what Ricoh said the Accelerator Unit was going to do. Deliver better files when it comes to noise and color fidelity.
What you are describing translates into better B&W conversions. Especially when ISO increases.
In the DPR comparison tool you can see the white dot noise start from ISO 200 for the K-1, D850 and A7RIII compared to the K-1MKII. At around ISO 800 the white dot noise balloons into red, blue and green dots. This can clearly be observed by looking at just part of the grey background of the
DPR Studio Comparison Tool then increasing the ISO. As ISO increases the K-1MKII has a much finer grain appearance.