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05-03-2011, 11:24 AM   #1
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Is this lens repairable?

Greasy aperture blades, which make the aperture stuck. Aperture DOESN'T move at all.
Can this be fixed again? Makinon 135mm Macro.



05-03-2011, 12:03 PM   #2
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It can be cleaned by a service like Eric at Pentax Camera Service Home

Not sure if it is a do it yourself job for an inexperienced person.
05-03-2011, 12:26 PM   #3
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not sure what is the value of the lens but if it is not a lot you can try to disassemble by your self.
I would try to get a price estimate for repair by a local repair shop and than proceed by my self.
I have recently disassemble and cleaned Meyer Optic Domiplan 50mm f/2.8 which is worth few euros. Assembling is harder than disassembling :-). Funny challenging exercise.

disassembly of pentax 50mm f/1.4
05-03-2011, 12:44 PM   #4
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I have disassembled, cleaned and assembled a Pentacon 4 200, 4 300 and the Meyer Orestregon 4 200 (which basically is the predecessor of the Pentacon 4 200).

So, I am pretty sure I could do it.

05-03-2011, 01:46 PM   #5
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QuoteOriginally posted by kheldour Quote
I have disassembled, cleaned and assembled a Pentacon 4 200, 4 300 and the Meyer Orestregon 4 200 (which basically is the predecessor of the Pentacon 4 200).

So, I am pretty sure I could do it.
Then I say - go for it, and make video of the process to educate us.
05-03-2011, 10:55 PM   #6
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yes, good luck and keep us updated. Wondering how it goes
05-03-2011, 11:28 PM   #7
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It should not be too hard if you already unmounted several lenses...

I already managed this operation on two different lenses and the hardest thing is to mount back as mentioned hramat

To clean the oil I unmounted the lens and kept the diaphragme block, then let it in Mister Proper or lighter fuel for a night and finally let it dry on the air !!! No water...

I hope you will be able to manage, it's always worth to save a lens
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