Canon EOS DSLR (EF / EF-S) -> T2 48mm Adapter T-Ring

Used to connect Canon EOS EF/EF-S DSLR bodies to 48mmx0.75mm t-threads typically used with astronomy gear. I use this t-ring to connect my Canon 450D to the field flattener / focal reducer of my telescope.

Standard t-ring dimensions, with 11mm from the camera bayonet mount to the front face. Click-lock works with this adapter, so no worries about it getting accidentally twisted off.

I printed laying flat as in the photos, and used PETG-GF filament with PLA as a support material for a clean release. Use matte black if you have it - I'll need to spray paint my adapter as I didn't have any matte black filament.

Print using ultra fine settings so the threads will work well. I used 0.08 layer height, 4 sides, 30% infill.