Lenses re-visited.

Yet another lens has been bought by me on the famous auction site and it is a case of nostalgia getting the better of me. I just bought a mint looking Vivitar 75-205 f3.8 in Nikon Ai fit simply because it was one of the first lenses I ever bought and It was a joy to use way back when I was cutting my photographic teeth on my first SLR. I regretted selling it and just couldn't resist the chance to get another, complete with Matched Multiplier. What lens(es) have you sold and ended up buying back years later ?

Leica R Summicron 50/2. Bought and resale 3 times, now I'm without, not knowing if I can survive. Better: I tought I couldn't , until got to know the Rollei QBM lens line made by Zeiss - from the Voigtlander Color Ultron design - for the SL Rollei cameras.

Way too many. 50mm summicron, 90mm f/2.8 Tele-Elmarit, Canon 50mm f/1.2, I have bought a number of lenses I sold that were in m42 mount with the same lens in Olympus OM mount. Now I never sell a lens, I put up extra shelves