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12-19-2013, 04:33 PM   #1
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FA* 28-70 F2.8 - what to look for?

My local store has one of these at a satellite store they are bringing in for me, it's a lens I feel I should have in the collection for a few reasons... but I want to know what I should be looking for to make sure I'm not spending a thousand dollars on a bad copy.

I'll also be getting the FB-1 FC-1 finder combo for my LX.

Yes, my LX is getting two Christmas presents.

12-19-2013, 07:54 PM   #2
Ole
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Check that the focus ring and zoom rings work and can switch between manual and autofocus/power zoom, respectively. Aperture blades snappy, no scratches and blemishes on the glass. Lens hood should be included.

If you bring your K-3 or K-5 with you take some images and verify that autofocus works, power zoom works, aperture mechanism works (in Av mode you should get same exposure at all F-stops).

Check sharpness across the frame and zoom range, corner sharpness should be similar in all corners or you may have a lens that was abused and got decentered.

It's a sturdy lens. Odds are that you'll find it in good order. I had two I bought second hand (one got stolen), and they were both in perfect condition.
12-20-2013, 06:14 AM   #3
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Look out for thieves willing to risk everything to take it from you

Joking aside, it's the usual : damage to the glass, non-smooth rings operation, cosmetic flaws, fungus.
12-20-2013, 08:09 AM   #4
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Original Poster
thanks, I figured as much.

I know when hunting for the 31 there were things to watch out for like girding on the rings and play in the hood (which saved me from a potentially bad copy). I appreciate the additional tips on this one.

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