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Comment by bazm posted on FS: Tair-3 300mm F4.5 lens at 15/10/2016 - 21:52
andrewk wrote:
This lens looks very similar to the Tair 3-A that I have. Mine had very stiff focussing and I had to strip it down and then clean & regrease the focussing helicoid.
Hi,This lens looks very similar to the Tair 3-A that I have. Mine had very stiff focussing and I had to strip it down and then clean & regrease the focussing helicoid.
Sorry for reviving an old thread but I've just purchased a 300mm Tair 3-A. It has fungus on front and rear lens and is extremely stiff to focus (unusable in this state). I'd like to clean the fungus and re-grease it. Can you offer any advice? I've just cleaned a Helios 44m lens that was in a similar state (this was my first attempt).
Thanks
Barry
Comment by bazm posted on FS: Tair-3 300mm F4.5 lens at 14/10/2016 - 18:54
This one also is not a native M42. The Russian designation (say) Jupiter 11A or Tair 300A would indicate that it does indeed have an interchangeable mount and you can replace it with a Pentax K version if you so wish. The suffix 'A' is the giveaway.
Should you ever do so, DO NOT undo the grub screws completely (you'll never get them back in !) but only sufficient to release the mount ring and get the replacement on. ............ I learned the hard way !
Do you know how to dismantle the lens any further than that. I'm a beginner and I'm loathe to give up on this beast of a lens without trying to clean it up.
Barry