NetR

The Z 100-400mm is almost exactly the same size and weight as the Z 70-200mm and has the same foot. I was pleased to find I can use my RRS replacement foot for the Z 70-200mm on both lenses.

Hogan's work in Africa included safaris and a wedding shot, and he notes that his tally included "12 different leopards, 18 different lions, 15 wild dogs, 6 brides maids".

Nikon micro 70-180mm

Thom Hogan has written about a product that lets you do this sort of thing. Stitching Z Simple Way | Thom Hogan

You are missing one important criterion: functionality. The simple fact is that some third party batteries just don't work in some Nikon cameras. Presumably because there is circuitry in a Nikon brand battery that the camera wants to find.

Its like stocks or any other investment. If only we knew...

I haven't seen anything that suggests Nikon glass will not continue to be produced in Japan.

I've noticed a tendency for newbies to take and post a photo of the box the gear came in.

Thom Hogan in his review ( Nikon 70-200mm f/2.8 S Lens Review | Thom Hogan ) concluded "This is a tough call. The 70-200mm f/2.8E FL is an excellent lens, the best I've seen in that focal range from anyone until the 70-200mm f/2.8 S came along. But I'd say the two Nikkors are within a hairbreadth's distance of one another in terms of optical performance, and what I see in differences could very well just be sample variation." Read the review for more information.

A video is linear - start at the start and go through to the end. With text I can skip sections that are not relevant, do a search and quickly find a section I want, highlight bits I might want to refer to again, etc much more easily than with a video.

The Nikon focus stacking function is not well documented. The increment you need will depends on the subject distance, focal length and aperture. In general, the longer the subject distance and the more closed down the aperture, the fewer the number of shots. But you just have to experiment. The D850 professional Technical Guide ( http://download.nikonimglib.com/archive3/olWKv00OIiiw03YkdPO64B8kqA89/D850_TG_Tips_(En)03.pdf) has some tables for macro that might help.

An artist photographer named Alain Briot used to write on the Luminous Landscape site and his work is still there. Alain Briot, Author at Luminous Landscape . I found his explanations of why he did what he did were helpful to me.

Try reading this https://www.photo.net/learn/color-management-101/

pcassity The D850 sensor size is 35.9mm x 23.9mm, which is an area of 858 square mm. It has 45.7 megapixels, so the pixel density is 5.32 megapixels per square cm. The D500 sensor size is 23.5mm x 15.7mm, which is an area of 369 square mm. It has 20.9 megapixels, so the pixel density is 5.68 megapixels per square cm. When the D850 is in crop mode, you are using only the middle 23.5 x 15.7 part of the sensor and everything outside that is ignored. So the D850 in crop mode has about (369/858) x 45.7 megapixels, which is 19.6 megapixels, which is only slightly less than the D500. You just can't see the difference between 19.6 and 20.7 meegapixels with the naked eye - it is only a 5% difference. Your assumption "the pixels of a small frame camera have to be smaller then a FF pixels in order to fit al of the pixels on the small frame sensor" is wrong. For a small frame sensor you simply use fewer pixels. What may have confused you is that each different Nikon Dslr has different size pixels. The pixel size on a D3 was much, much larger than the pixel size on a D850, for example.