Review 2 of 7
Price Paid:
$267.00
from Pentax Corp. (1994) Summary:
i have owned the Nikkor 20mm f4, and do own the Pentax M f4. This 20mm f2.8 A has to be used intelligently, on axis, and often while holding one's hand off and up from the lens to block being sunstruck. It is a very good lens, sharper than the Nikkor, and, at f 4 than the M series (same focal length). It is very good at f 2.8, certainly as good as the FA f2, which is an APO with great to the edges sharpness and distortion correction. As a 20mm then it excells, with good flare, distortion, and color correction. Sharpness improves at f 4, and is neck and neck with the others thereafter. If you can get it under $350 it is better than the 20-35mm fast zooms. Strengths:
Build quality. Sharpness, color fidelity, on axis reasonable to focal length distortion. Images snappy. Easy to use and with information transfer to later Pentax bodies. Weaknesses:
Some light fall-off wide open. Like all UWAs this is more apparent when using polarizers (not recommended by manufacturers for any UWAs, and not really often necessary in this range). You can pay too much for this length ($500 and up is too much, but less than the $7xx list). Similar Products Used:
Canon 20mm, Nikkor 20mm, Pentax M 20mm. Customer Service:
The Pentax national service center is second to none, and will give professional service priority if requested. This lens will probably last 60 years before needing relubrication and blade adjustment. Very high quality professional products in the Pentax line-up.
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