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03-13-2011, 12:54 PM   #1
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Pentax SMC K 105mm f2.8 info needed

Hy! I found this lens (Pentax SMC K 105mm f2.8) for about 100$, but I couldn't get to much information about it. What is the normal market price...and if I could get some samples...especially at f2.8.

Is it a good deal? I have the K 135mm 3.5. Is this lens much superior?

03-13-2011, 01:13 PM   #2
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I got the SuperTak 105/2.8 a few weeks ago for US$17.50 shipped and people hate me for that, or so I've been told. Ira hates it for some reason. But that's not the K, and it's totally different that the 135/3.5 (of which I have S-M-C Tak and SMC-M versions). See the user review database for info. And see eBay's COMPLETED LISTINGS for current market status. Good luck!
03-13-2011, 01:27 PM   #3
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QuoteOriginally posted by sim Quote
Hy! I found this lens (Pentax SMC K 105mm f2.8) for about 100$, but I couldn't get to much information about it. What is the normal market price...and if I could get some samples...especially at f2.8.

Is it a good deal? I have the K 135mm 3.5. Is this lens much superior?
That's a very good price. At Keh, for example (which I use as a benchmark - high prices but very reliable quality), they usually go for well over twice that.

I have one - it is excellent from f4 onwards, somewhat soft and prone to longitudinal CA at f2.8, which I am told is typical of lenses of this vintage. The M100 2.8 is a normally cheaper alternative, which I find is better wide open, but you would be lucky to find that for $100. No idea about comparison with K135, sorry.
03-13-2011, 06:16 PM   #4
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I have both the K135/2.5 and the K105/2.8

The big difference as pointed out is that the 105 is soft wide open where as the 135 is incredibly sharp at all apertures

The wide open softness is useful however in some portrait situations

03-13-2011, 07:23 PM   #5
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SMC Pentax 105mm F2.8 Lens Reviews - Pentax Lens Reviews & Pentax Lens Database

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