Pete
Joined: 01 Feb 2011
Posts: 240
Location: Denver, San Jose
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 Posted: Wed Apr 27, 2016 5:37 am Post subject: |
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Pete wrote:
Hi Victoria,
I did not forget you. Took several soakings and a lot of fingernail prying but I did get the pieces apart. I am thinking that you should try to cut it with an Exacto Knife around the edge until it comes loose then carefully work the rest off. The heat gun is not a bad idea but you need to be careful. Maybe wrap the lens in a wet paper towel as a heat sink.
Pete
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"As God is my witness, I thought turkeys could fly!!!"
www.pete.3rdtrick.com |
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visualopsins
Joined: 05 Mar 2009
Posts: 10362
Location: California
Expire: 2021-06-22
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| Posted: Sat Apr 30, 2016 1:49 am Post subject: |
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visualopsins wrote:
| Lloydy wrote: |
| If I need to use heat to loosen a tiny screw I use the pointed tip of an electronics soldering iron on the screw head. Works a treat, and no excess heat to damage anything else or melt the grease. |
+1000! Use hot air gun after masking may be more efficient heat transfer, but solder iron tip gives more control
How many watts, Lloydy? Too few watts can do damage as can too many watts -- both cases, too much heat escapes the application point. Like with soldering components, the wattage is chosen to melt fast but not with so much heat component gets damaged...I guess about 30Watts 1mm tip for lens grub screws?
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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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