Voigtlander Vitessa Lenshood

Voigtlander Vitessa is a very cool camera from the 1950s, the original hood was the 125/20 which is a push-on external hood. Those are hard to find and expensive.

My Vitessa N2 with Color Skopar 3.5 has a OD of 34.5mm and ID of 33.0mm.
This dimensions have also been confirmed for the Ultron 2.0 lens in the Vitessa A series and the Skopar 2.8 in the latest series.

This is a remix of https://www.thingiverse.com/thing:1168491/ and https://www.thingiverse.com/thing:39683

R1 has 2 versions, one for mounting outside the lens (external) and one to mount inside the lens (internal)

R2 is a modification of the previous, only for external mout, with thicker wall and larger rectangular hood plus a hole for a cord/lanyard so you don't lose it.

I printed these in PLA, adjust your scale for shrinking is using a different filament.

Print instructions

PLA works fine
R1 works best at 0.2 layer and 10% infill

R2 needs 15% star infill and no supports
At 0.2mm layer height it prints in ~45min