Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-13-2020, 07:12 PM   #16
Senior Member




Join Date: Dec 2017
Photos: Gallery
Posts: 246
QuoteOriginally posted by HarisF1 Quote

The upshot to this is that the cement separation can still be repaired. It takes a bit more work than a standard clean of fungus but it should still be doable from a specialist repairman.
That story is often heard of. Sofar I did not meet a repairman who could correct separation problems with lenses.

Whenever UV is used to harden the compound between the elements it is impossible to correct separation.
I do not know what method Pentax used in those days.

01-13-2020, 09:39 PM   #17
Pentaxian




Join Date: Dec 2009
Location: Dallas / Yucatan
Posts: 1,139
QuoteOriginally posted by Fluegel Quote
That story is often heard of. Sofar I did not meet a repairman who could correct separation problems with lenses.

Whenever UV is used to harden the compound between the elements it is impossible to correct separation.
I do not know what method Pentax used in those days.
There used to be a member here who could repair balsam separation of older lenses as well as reanodizing lenses in silver, etc. However, there was some unknown dispute and he's not here any more. Members who used his services were very happy with the lenses he repaired, so it was possible somehow.

I don't know when UV hardening came to be common.
01-14-2020, 03:37 AM   #18
Pentaxian




Join Date: Apr 2016
Posts: 474
QuoteOriginally posted by yucatanPentax Quote
There used to be a member here who could repair balsam separation of older lenses as well as reanodizing lenses in silver, etc. However, there was some unknown dispute and he's not here any more. Members who used his services were very happy with the lenses he repaired, so it was possible somehow.

I don't know when UV hardening came to be common.
I was going to mention his work but I think he has stopped doing repairs. DCShooter was his handle on these forums, he helped me out a lot with tips/advice on how to disassemble certain lenses.
01-14-2020, 05:15 PM   #19
Senior Member




Join Date: Dec 2017
Photos: Gallery
Posts: 246
Pentax must have used a different method than Carl Zeiss used.
There used to be a repair facility in the US that claimed they could correct separation and coating problems for Carl Zeiss lenses.
It was suspected they exchanged parts of lenses to be repaired for other parts.

Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
aspheric, dslr, ebay, full frame, full-frame, k-1, k1, lens, pentax, pentax k-1, smc
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
This must be a very special Pentax HD D FA 15-30mm F2.8 ED SDM WR Lens on Ebay Tony Growden Pentax Price Watch 12 12-08-2017 08:59 AM
Nature Very Pretty, Very Yellow, Very Big Flower. Tonytee Post Your Photos! 14 06-12-2016 03:45 AM
Legendary and very rare SMC Pentax(-K) 2.0/28mm on eBay RKKS08 Pentax Price Watch 20 05-28-2016 06:34 AM
Takumar 15mm aspheric...i got one! pickles Pentax SLR Lens Discussion 12 02-28-2011 05:45 PM



All times are GMT -7. The time now is 11:57 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top