Microscope adapter for 4x macro photography with Sony E/FE, Canon EF/EF-S, Nikon F, M42 cameras

thingiverse

This adapter allows you to mount any finite RMS microscope objective (i.e. objectives that are marked with "160mm" rather than "infinity") on your Sony E / FE, Canon EF / EF-S, Nikon F, or Pentax M42 camera. The slimline design allows you to get much closer to your subjects without your rig colliding with leaves and pushing your subject out of the way. **Note: The "Download All" button is broken, but you can still download the files individually using their "Download" buttons** The $20 4x Plan Achromatic microscope objective I've been shooting with gives fantastic image quality on this adapter: https://www.aliexpress.com/item/32360730919.html The outer casing of this objective unscrews, which makes it much slimmer and shorter to give you more working distance and easier lighting. (I just use the casing as a lens cap for storage and transport) In the US Amscope sells an objective which is identical in outward appearance (but I haven't tested it): https://amscope.com/products/pa4xk-v300 I've included two adapter designs: The crop design is for Sony E, Canon EF-S, or Nikon F crop cameras (or full-frame cameras which have been switched to crop mode) which has a segment of tube you can remove to shorten the tube. For objectives which cast a big enough image circle, removing this middle tube allows you to reduce the magnification and focus at a greater distance (for the 4x objective I tested this reduced magnification from 4x to 2.75x, and increased working distance from about 28 to 31mm). The full-frame design for Sony FE, Canon EF, Nikon F or Pentax M42 cameras does not have a removable tube segment. **If you like macro photography then [check out my other designs too!](https://www.thingiverse.com/thenickdude/designs)** I have designed a lot of 3D-printable photography equipment.