Telescope DSLR Camera Adapter

An adapter to attach a DSLR camera with a EF-S style mount to a 1.25 inch telescope eyepiece for astrophotography.
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updated July 15, 2023

Description

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A simple solution to mount DSLR cameras directly to your eyepiece! Tested with a Canon EOS 4000D, should work with EF-S type mounts. 

Printing Instructions

Will have to hold some load, so I recommend 30-40% infill, especially with a larger camera, though you could probably get by with less.

I printed with PLA, but PETG or ABS may work even better.

I oriented the part in my slicer so the EF-S side is down and the telescope tube is up, then printed with tree supports. This required minimal cleaning and the part came off very smooth.

The telescope end is meant to be a snug but not too tight fit, so you may have to sand it down a little.

I recommend printing with matte black filament or painting the part black to help with reflections.

Usage Instructions

The added weight of the camera may throw your telescope off balance, especially with an equatorial mount. Make sure to rebalance your telescope with the camera added.

The camera likely won't be able to pull focus on your telescope without a Barlow Lens.

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The author marked this model as their own original creation.

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