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10-15-2015, 09:17 AM   #1
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What Defect is on My Lens?

I have an old Takumar 50 mm 1.4 lens from a Spotmatic. When I hold it up to a flashlight one half of it has many tiny lines together, like a frost pattern on a window (maybe). Are these scratches? If so, I don't know how they happened.

Thanks.

10-15-2015, 09:19 AM   #2
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10-15-2015, 09:40 AM   #3
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+1. If it's very light probably won't have any noticeable effect on IQ. If you think you're seeing some reduction in contrast/bit of unwarranted flare then this is not a difficult lens, I believe, to open and clean.
10-15-2015, 10:10 AM   #4
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What is the easiest way to open and clean the lens? I guess I'll stop by Hunt's Camera in my area, get an adapter and see if the image quality is compromised.

10-15-2015, 10:36 AM   #5
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This forum is just a treasure trove of answers: https://www.pentaxforums.com/forums/114-maintenance-repair-articles/208537-su...ssasembly.html
10-15-2015, 10:37 AM   #6
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There's a thread here that has a list of links for Pentax lens disassembly, and you can find useful information in the comments on that thread.. The link in the list for your lens has been updated and points here.

Good luck!

Oops, corked!
10-15-2015, 10:55 AM   #7
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Thank you thank you!
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