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Mamiya C 180mm Lens repair (cleaning)

Started by David_nebenzahl, Sep 20, 2009, 01:01 AM

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Paul Ron

Oct 12, 2009, 01:22 AM #15 Last Edit: Sep 20, 2024, 01:13 AM by smf_adm
Now if the kid married the tarter control's daughter, you can buy yourself a new camera.  
 
Did you swap the viwer for the taker?
 
Did you check out KEH?

Paul Ron

Oct 12, 2009, 01:24 AM #16 Last Edit: Sep 20, 2024, 01:13 AM by smf_adm
OH I forget, did you check hte focusing film plane to viewer?

Natew

Oct 24, 2009, 07:36 PM #17 Last Edit: Sep 20, 2024, 01:13 AM by smf_adm
Well, I took a couple of shots, but I've not had them developed yet.  We'll see how the results came out when I can afford to send them out for it. (I had 80mm and 180mm and got nice (?) shots of the multi-color fall swamp.)
 
I didn't end

Natew

Oct 25, 2009, 09:25 PM #18 Last Edit: Sep 20, 2024, 01:13 AM by smf_adm
Sorry, missed something: this is the location I shot the test shots at.  Looking forward to the resulting images! (this shot with a Nikon D80 set to about as saturated as I can get; I hope it's about what I get from Velvia 50.)

[img]https://kyp.

Paul Ron

Oct 27, 2009, 09:41 PM #19 Last Edit: Sep 20, 2024, 01:13 AM by smf_adm
You focus using a well lit target, then with a GG on the film plane focus using a loupe for max sharpness. If the view screen doesn't agree, the viewer is focused to match the film plane.  
 
*I don't remeber if the lens itself can be focused

Epatsellis

Dec 26, 2009, 04:51 PM #20 Last Edit: Sep 20, 2024, 01:13 AM by smf_adm
Out of curiosity, have you tried cold cream rubbed by hand. Odd as it seems, it's saved my butt on some lenses that had the same type of fogging.

Paul Ron

Dec 28, 2009, 12:29 AM #21 Last Edit: Sep 20, 2024, 01:13 AM by smf_adm
I've heard about the cold cream but never tried it myself. I'll bet the lenses are baby butt soft n smooth?


David_nebenzahl

Dec 28, 2009, 02:27 AM #22 Last Edit: Sep 20, 2024, 01:13 AM by smf_adm
I used cold cream a couple times on old (uncoated) lenses. It seemed to clean them, but then I read that you really shouldn't use this stuff on lenses, so I stopped doing it. It sounds like a fairly dodgy bit of DIY camera-repair mythology.

Epatsellis

Dec 28, 2009, 03:16 PM #23 Last Edit: Sep 20, 2024, 01:13 AM by smf_adm
perhaps, of course the proper way to repair the lens is to replace the elements. I've used other dodgy sounding approaches as well:
 
Rick Oleson's wicking light oil into the edge of a separated lens cell, full immersion soaks of (metal blade

David_nebenzahl

Dec 28, 2009, 07:51 PM #24 Last Edit: Sep 20, 2024, 01:13 AM by smf_adm
None of those other things that you described sound iffy to me, and I take any advice from Rick Oleson very seriously. But the cold cream thing is, to me, fairly worthless urban legend.