Yashica T3 Zeiss 35mm f 2.8 to M39 Conversion

Yashica T3 Zeiss 35mm f 2.8 to M39 Conversion

prusaprinters

<p>I have this broken Yashica for sometime and now since I have access to 3D printer and Fusion 360 software I was able to successfully achieve this conversion.</p> <p>The focus helicoid is a simple M25 thread and it was inspired by the early leica models such Elmar and also MS-Optical super pancake lenses.</p> <p>For now due limitations of skill parts and money there are no rangefinder coupling or variable aperture control.</p> <p>The lens can work with digital mirrorless but Im not sure is will be safe to use with crop sensor cameras since there is a fix rear element that goes inside de camera body. works fine on my Sony A7.</p> <p>Dealing with 3d printed threads may be difficult but with a fairly calibrated machine and some patience for some extra scraping and cleaning will function just fine.</p> <ul> <li>Print on PLA or PETG with 0.1 to 1.6 layer height for precision.<br/> *Theres two pieces for the front lens group one will be wide open at f2.8 (only recommend if using on digital) and one with a fix aperture around F4.</li> <li>You will need to set the focus before fixing the FOCUS_RING, you can do that with digital or some tracing paper as ground glass.</li> <li>Use a small drill or a hot wire to make the holes for the screws.</li> <li><p>Put just a drop of glue on the parts Tested with digital and also on my Leica IIIf + Foma 100 and the images are pretty sharp.</p> <p>If this was helpful consider a donation of any amount.<br/> <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&amp;business=BP8YS4BFBT8F6&amp;currency_code=USD&amp;source=url">https://www.paypal.com/cgi-bin/webscr?cmd=\_donations&amp;business=BP8YS4BFBT8F6&amp;currency\_code=USD&amp;source=url</a></p> </li> </ul> Category: Camera

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