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Finetta, Finetar lens to Leica L39 & M43rds adapter

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3D model description

Adapters to attach the Finetta lenses that have a 37mm thread on the rear (not the earlier bayonet lenses).
STL: Finetta 37mm to Leitz L39 thread. This will fit Sony E-mount and M4/3rds adapters to L39 as shown in the photos.
It's made slightly short so it will go slightly past infinity on most adapters and past infinity on L39 cameras.

STL: Finetta 37mm to M4/3rds mount; should go just slightly past infinity.
Close focus is pretty poor on these lenses even on the original cameras (the 45f2.8 is 2.8ft minimum), so I've tried to keep the adapter print short, but not too short! [commercial NEX and M43 adapters tend to err on safety and are also 'too' short].

3D printing settings

FDM: the L39 print is best printed with the L39 thread on top (ie last).
the M43rds print should print the M43 flange on top/last.
In Cura concentric supports are better over threads.
Prints, draft mode .2 walls is OK. Though a high res (2 degree) STL of the M43 adapter is included.

  • 3D file format: STL
  • Publication date: 2021/01/30 at 15:51

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DP/Lighting cameraman, working in drama and models VFX. Background in electronic and mechanical design, including photographic adapters and accessories.

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