Nikon DSLR Camera to microscope ISO photo tube adapter.

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All of the details, basic theory, and how-to's are in this Blog posting: http://www.siliconsombrero.com/2018/04/28/scopecam/ This adapter connects a Nikon F-mount camera (ie D3300, D5000, Nikon 35mm, etc) to a standard 38mm ISO photo tube port. 38mm ISO photo ports are found on older Nikon, Zeiss, Leica, and other microscopes. This version is made specifically for a Nikon SMZ-2T with a Nikon 1x/16 relay lens (available used on ebay). It is parafocal and works great. The adapter will fit other microscopes with 38mm ISO ports, but the length will need to be adapted for other models / relay lenses to be parafocal with the eyepieces and stay in focus with zoom changes. Read the above blog posting to find out how to get this distance for your setup! This will not work without a relay lens, eyepiece, or suitable lens in the photo port (a relay lens is preferable). The pictures shown were taken with a Nikon D3300, Nikon SMZ-2T, Nikon 1x/16 relay lens, and this adapter. With the 1x relay lens and APS-C sensor here there is "vignetting" -- the field of view is smaller than the picture area. A relay lens with greater magnification or a smaller sensor would create a cropped, full frame image. However, it's a microscope, right, isn't the image supposed to be round? Yes, my desk is messy.