Upgrade - Vintage Lens housing "Super-Takumar 50mm f1.4" Cinematic Re-housing 0.8M Focus gear pitch

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This custom lens housing is optimized for Super Takumar 50mmf1.4_8 elements (early version. M42 mount). 7- and 8-elements lens may not be completely matched due to small differences in shape size. (The 7-element lens is slightly larger than the 8-element lens) I uploaded a file with some figures (61.5mm outer diameter of the focus ring, etc.)applied to fit the super-Takumar 50mm f1.4 later version, but the actual assemly of this version No tests were made. See the link below for information about each version! https://www.pentaxforums.com/lensreviews/Super-Takumar-50mm-F1.4-Early.html This is a Cinematic lens housing that improves the MF lens (Super Takumar 50mm f1.4) of older SLR cameras for video shooting. Also, since we wanted to keep the focus gear specifications similar to other cinema lenses, the outer diameter of the focus gear was composed of 114mm and 141 teeth. Designed to be secured using multiple M5 (6 pcs) and M4 (10 pcs) standard grub screws. The filter step-up ring & Metal round Hood used on the front is designed for easy use of ordinary circular filters and is designed to stably fix the front part of the lens housing. Standard filter mounting screw on the front part. (95mm inner diameter) [Other necessary parts] -10 pcs of M4 x 4mm grub screws -6 pcs of M5 x 5mm grub screws -49-72mm step up ring (filter adapter) -72mm metal round hood -M42 to EF conversion adapter File sharing is for sharing ideas. Use it for personal use only. Commercial use is not permitted. Refer to the link below for more information and print file(STL). https://surplusperson.tistory.com/793 If you found my designs useful, please donate what you think it is worth to my paypal.me. Your donation will be useful for a new housing design on a variety of lenses. https://paypal.me/suplusperson