lucca1x
Joined: 09 Feb 2014 Posts: 93 Location: Romania
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Posted: Fri Nov 11, 2016 8:40 am Post subject: Takumar 67 105mm 2.4 advice |
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lucca1x wrote:
I bought this kit with Pentax 6x7 MLU, metered prism and takumar 105 2.4 at a good price (I think).The body is fully functional and the shutter speeds seems accurate. It needs new seals but this is not a big problem. The prism didn't work at first, but it was an easy repair - one of the power wires was loose and resoldering a new wire and cleaning the pots with alcohol made it fully functional. It might underxpose 1/3-2/3 stop , but I won't recalibrate it because I like a little underexposed photos.
The lens was offered as a bonus, as it has an issue. It suffers from separation in one of the rear groups. I would like to try a DIY recovery. I've read about heating, cleaning and re-gluing elements cemented with canada balsam, but I couldn't find any info about the type of cement used by Pentax in this lens, so I don't know if this method will work. The lens is the second version marked: "Super-Multi-Coated Takumar/6x7 105mm F2.4". Does someone here has any info advice on this matter?
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visualopsins
Joined: 05 Mar 2009 Posts: 10463 Location: California
Expire: 2021-06-22
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Posted: Sat Dec 31, 2016 3:24 pm Post subject: |
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visualopsins wrote:
Congratulations on new camera!
I guess this relatively modern lens uses cement other than balsam.
Maybe somebody over at Pentax Forums knows?
Or try Eric & crew at pentaxs.com
Search mflenses.com and general internet for "lens cement" for info on, for example, de-cementing UV adhesives... _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony A7Rii, Spotmatics II, F, and ESII, Nikon P4
M42 Asahi Optical Co., Lenses:
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
Other lenses:
Carl Zeiss Jena Flektogon 2.4/35
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
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