Sony FE/E lens to Canon EF/EF-S camera macro adapter

prusaprinters

This adapter allows you to use your Sony E/FE lenses on your Canon EF/EF-S DSLR for macro photography.Because of the difference in the depths of the mounts for Sony and Canon, this adapter is equivalent to adding a 28.4mm extension tube to your Sony lens. So focusing to infinity will be completely impossible, you can't even get close, this adapter is only useful for macro photography.A 35mm lens with this much extension added will be able to focus to about 1x magnification. My Laowa 85mm 2x macro lens' magnification range changes from 0→2x to 0.33x→3.1x by using this adapter. So now I can use “the smallest 2x macro lens in the Full Frame market" on my DSLR, and get some bonus magnification too! Longer lenses will get less magnification, and shorter lenses will get more. Super wide-angle lenses will be impossible to use on this adapter because the farthest focal distance will end up being inside the lens.For more photography models by me, including the arm system and flash diffuser seen above, please check out my other designs! https://www.printables.com/social/25723-thenickdude/modelsPrintingPrint at 0.1mm layer height, with 3 perimeters and 13% rectilinear infill. Alternatively, print using 100% infill, which works about the same. No supports are required. Any of PLA, PETG or ABS should work, I tested PETG and ABS.If you're printing in ABS, note that you will need to adjust the Shrinkage setting in your filament options to compensate for the shrinkage that ABS experiences after printing. To tune this, print the adapter with no compensation and use calipers to measure the diameter of the ring highlighted in blue below:The ring should ideally measure 54.00mm in diameter. On my printer I had to set the Filament Shrinkage to 99.5% to get the correct dimension here with ABS. If this ring is too small, the axial fit on the Canon mount will be sloppy (it will allow lateral play within the camera's mount) and the fit on the Sony lens will be too tight. If the ring is too large, getting it to seat in the Canon camera will be impossible and the Sony lens will be too loose.Using the adapterLine up the white dot on the Sony lens with the alignment mark in the face of the adapter (highlighted in blue below) and mount it to the lens:Then screw in a M3 x 3mm dog-point grub-screw (McMaster) in from behind to secure the Sony lens (I bought mine from Misumi-EC with product code SSHN-ST-M3-3).The back of the screw must sit just below the printed surface of the mount to avoid scratching the Canon's mount, like so:But do not screw it in any more than this, because the screw will start pushing the adapter away from the lens and deforming it. You have 0.4mm of margin to work with (a bit less than 1 turn of the screw). The screw tip doesn't need to press against the lens, it just needs to stop it from unscrewing from the adapter when the lens is twisted.Stop screw installed into adapter (4x magnification)Now you can line up the alignment mark on the edge of the adapter (highlighted blue below) with the red dot on your Canon camera's mount to mount it to the camera. Be sure to listen for the click of the camera's lock pin engaging to ensure it is successfully locked to your camera: