Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
02-16-2010, 03:58 PM   #1
Senior Member

Join Date: Aug 2009
Location: North Dakota
Photos: Gallery
Posts: 143
Sears lens with PK on aperture ring (K mount??)

Someone I know out of town, has a sears 135mm 2.8 that I may take off his hands except for the fact that he isnt sure of the mount..

On the aperture ring though, ring beside the f2.8 is is PK in white letters just as the f-stops are...does this mean it is K mount???

I thought it did, but I figured I would check with the experts.

02-16-2010, 04:05 PM   #2
Veteran Member
aleonx3's Avatar

Join Date: Jul 2007
Location: Brampton, Ontario
Photos: Gallery | Albums
Posts: 3,996
Yeap, PK stands for Pentax K mount. There are variants out there on third party lenses such as P/KA (with A setting) and P/KR (with Ricoh pin setting) etc.
02-16-2010, 04:07 PM   #3
Loyal Site Supporter
Loyal Site Supporter
pacerr's Avatar

Join Date: Jan 2008
Location: Paris, TN
Photos: Gallery | Albums
Posts: 3,346
It is a PK mount and that lens is a very nice, low cost 135mm prime. Especially if it's the macro version.

If he has the Sears 28mm/2.8 Macro, get that too.

Search "Sears 135mm macro" on this forum.

02-16-2010, 10:20 PM   #4
Senior Member

Join Date: Aug 2009
Location: North Dakota
Photos: Gallery
Posts: 143
Original Poster
thanks guys for the help! I knew you would know.

Just wanted to be sure before I got my hands on it. About a month back I got a SMC 50mm 1.7 and have fallen in love with manual lenses. Figured I could get some very solid lenses at an awesome price (poor graduate student marrying a doctoral student)


  • 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!
aperture, k-mount, lens with pk, pentax lens, pk, sears, sears lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sears 135mm: Av stop-down does not match aperture ring aerodave Pentax SLR Lens Discussion 2 11-01-2009 02:24 PM
using an aperture ring lens on the K100D Super burntsienna Pentax DSLR Discussion 3 02-25-2009 02:10 PM
Sears 135mm f2.8 K-mount -- using aperture ring? bikerboy_ro Pentax SLR Lens Discussion 5 11-27-2008 02:20 PM
Sears 1:1.7 Auto k-mount lens wipearl Pentax SLR Lens Discussion 4 03-04-2007 05:59 AM
Old Sears Lens Aperture Problem Kendall015 Pentax SLR Lens Discussion 2 02-10-2007 08:14 PM

All times are GMT -7. The time now is 12:55 PM. | See also:, 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?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]