nelramalho
Joined: 29 Apr 2021
Posts: 2
Location: Brasil
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 Posted: Thu Apr 29, 2021 10:17 pm Post subject: Please need help to adapt Kipronar 120mm 1.9 |
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nelramalho wrote:
Hello everyone, I'm new here on the forum. My name is Nelson Ramalho, and I'm from Brazil. I would be so kind if someone could help me.
After some time searching, I finally got a good example of the Kipronar 120mm 1.9 projector lens, my question is which helicoid to buy to be able to adapt on my Camon 5DII, as there are many models with varying focal lengths, I thought of a M65 25mm-55mm helicoid or 17mm-31mm, am I correct? Can someone help me with this please?
I am very grateful.
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Brazilian in love with photography since the 80's |
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visualopsins
Joined: 05 Mar 2009
Posts: 10540
Location: California
Expire: 2025-04-11
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| Posted: Sat May 01, 2021 3:51 am Post subject: |
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visualopsins wrote:
Welcome nelramalho!
Dr Schmitt also wrote a "sticky" topic here, "How to determine the length of a needed helicoid" http://forum.mflenses.com/how-to-determine-the-length-of-a-needed-helicoid-t23791.html
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Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (51BB), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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