Why so many used 20mm f/1.7 lenses ?

Started Mar 1, 2012 | Discussions thread
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Why so many used 20mm f/1.7 lenses ?
Mar 1, 2012

I've got a E-PM1 on the way and I'm stuck in the common conundrum of 20mm f/1.7 vs 25mm f/1.4 . I know, I've read all the comparison threads and there's nothing conclusive to say which one is really "best" overall.

My question to the forum is this though - why do you think there are so many used 20mm f/1.7 lenses for sale? There are typically half a dozen or more for sale on eBay alone in the USA on any given day. Meanwhile, over a two week period I only noticed one 25mm f/1.4 (for MFT) lens for auction.

Surely not that many camera owners are upgrading from 20mm to 25mm. But how else to explain why so many used 20mm f/1.7 lenses are available? Thoughts?

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