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10-05-2009, 10:54 AM   #1
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SMC vs Adaptall-2 wide primes: any thoughts?

I'm curious if anyone knows just how well the Tamron Adaptall-2 wide primes such as the 24/2.5 and 28/2.5 stack up against the equivalent SMC-K, SMC-M or SMC-A Pentax versions. I own the Adaptall-2 24mm and the 28mm, and they seem like capable lenses. Any thoughts?

I also managed to snipe a SMC-A 35/2.8 with an old K1000 off the 'bay: here's hoping it's in decent shape (it's on it's way now). Anyone have any experience with this one?

10-05-2009, 11:00 AM   #2
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I have both the 24 and 28mm F2.5 tamron lenses. The 24 I have had for years, the 28 was a recient $10 acquisiton.

I unfortunately don't have similar focal length SMC lenses to compare.
10-05-2009, 11:48 AM   #3
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I don't have a 24mm or 28mm SMC lens, but I do have the latest version of the Tamron 24mm and had a 28mm Tamron on loan. The 28mm seems like a nice lens, but I feel the 24mm is sharper optically. The coating on both should have been the same. This is backwards from what I would logically expect.

I will speculate and say you will like the A 35mm f2.8. I personally think Pentax's 35mm lenses have always had the edge on the 28mm lenses. That is just my personal opinion which along with $5 will get you a cup of mediocre coffee at major coffee shop chain.

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