Alex Permit

The OP indicates that he has tried locking the aperture ring,

Good points, but according to Thom the D800 is a "pro" body yet it has an "easy ISO" feature, while the D5/D500 do not.  There is no question in my mind the D8xx series is a "pro" series camera. ...

Did it resolve your issue?

Keep us informed.  Post comparison pics and tell us what the in camera jpeg settings were. If you like, you could post the raw NEF as well. I or others can see if there is some magic we can perform ...

Here is a discussion at DP review comparing the image  quality and speed of the 300 pf +TC1.4 to the 200-500: Nikon 200-500mm f/5.6 vrs Nikon 300mm f/4 PF + TC-14? Another discussion on the 300pf+TC1.4

Using Adobe Camera Raw? To me, it looks like what I would get from Lightroom using ACR, Adobe Camera Standard, and adobe defaults. If this is converted using ACR, then that may be the issue. if you ...

The D500 control layout is taken from the D5. Personally, I don't find it awkward to press the ISO button (right behind the shutter dial) and change iso on the back wheel. Its easier than exposure ...

You say "something happened", implying you got good photos before with this camera and lens combination. Have  you shot ISO 1800 before? What  is your workflow (OOC jpeg, ACR converted raw, etc)?

Hi xsamie. The a7sii will certainly outperform my a7rii and a6500. The a7sii has a low resolution full frame sensor, and so the camera can read the entire full frame. No pixel skipping. Here a ...

Thank you. I've read on the DXO forum that if you set images to be processed simultaneously at too a high a level you get degraded performance.  On your four core setup, have you noticed any speed ...

Did you look at taskmanager and observe if all 4 cores were peged at 100%?

I was asking the original poster how his zippo lighter solution has worked. i did post a suggestion to you on the other thread.

It looks like a third party version of a Nikon Lens Scope Converter.  The scope converter was used to convert a camera lens into a spotting scope (when used with telephoto lenses) or a magnifying ...

Thank you for posting. It's been 5 months, does your lens still work well?

The a6500 is slightly cropped. It uses the full width of the sensor. It is cropped in height. The a7rii in super 35 is highly cropped. It is cropped in width and height. The a7rii in full frame is ...

I'm saying high ISO performance is the same when I use super 35 on the a7rii. When using super 35, the a7rii is in crop mode, same size image as the apsc a6500. When using full frame mode on the ...

I don't think so. High resolution DSLRs use pixel skipping or pixel binning when reading off the full frame sensor. This retains the shallow DOF and FOV of the full frame sensor, but does nothing ...

Yup, older than the hills. I've been a member of DP review since 2003 and I think I had my 10D autofocus issue around the same time.

Aperature is the ratio of the focal length divided by the effective entrance pupil.  And so the front element of a 200mm f/2 lens would have to be be at least 100mm in diameter.  In practice it ...

Yes, so it is. I don't remember where I first found that suggestion, but it was many years ago. May have been my Canon 10D autofocus that had acted up. A dust blower cleared it up. I probably read ...