There has been a lot of communication in this discussion implying that the D7500 and D500 are relatively equivalent cameras. I own one of them and have looked closely at the other when helping a colleague choose a new camera. There is no way that this is even close to true. The D7500 is a nice consumer grade camera. The D500 is, for all functional and user interface purposes, a professional camera. From a functional standpoint, it is identical to the D850, except for the newer capabilities added to the D850. In fact, the D500 is probably underpriced by close to 20% if judged by honest comparison to its Nikon relatives.

Also...as an industrial engineer with ergonomics background, I suggest that folks quit fixating on weight differences of an ounce or two, or of a couple of tenths of a pound that they have read about in a spec sheet. Differences of that magnitude just don't matter. You cannot detect them. Other factors, including surface finish and body contours are more important. If I handed you a D300 and a D500, the majority of you would tell me that the D300 is larger and heavier. You would be wrong.

I'm not trying to sell D500s or D850s or any other camera here. I'm just asking everyone to stop misleading yourselves and, more importantly, stop misleading others, whether intentional or not. Quit reading spec sheets and pretending that you've held, handled, and used a camera.

Cascom--at the risk of detouring this discussion, I am interested in your opinion around the ergonomic effect of adding a battery grip to cameras. My hands are relatively large, and I find that adding a Nikon battery grip (which all seem to have superior design, fit, cushioning, and finish to 3rd party grips that I've tried) has a subjective effect of lowering what I call the "effective weight" of the camera. I've added grips to a D300, D300s, D810, and D850 with what presents to me as the same beneficial effect. Even though the grip adds weight, the camera handles as if it were less heavy. I find the apparent benefit increases with heavier lenses. Have you noticed this as well?

My MSIE was in 1980, so maybe in the same general era as yours...we had a 370 and also a similar (but faster) CDC machine that I cannot remember the model number of...