rdeloe
Well-known member
This is just a quick pointer to a thread at the PentaxForums site for people who use Pentax 645 lenses and have been wondering how the modern D FA version does in comparison to the original manual A version. I know from previous threads in this forum that there are a few such people, especially among people who are looking for a wide angle shift lens.
In this post, a user who has both the A and DFA Pentax 645 35mm lenses posts samples, including RAW files, of test scenes made with both lenses. Based on my evaluation of those files, I'm not going to bother getting the newer D FA because the original A is excellent. (All the usual caveats apply about making decisions based on one copy of one lens and one test scene!) What this test does not do is speak to shift potential; the user who made the test is using a 645Z, so the whole image circle is not being used. Nonetheless, at the edges of the frame, the A is still better to my eye.
In this post, a user who has both the A and DFA Pentax 645 35mm lenses posts samples, including RAW files, of test scenes made with both lenses. Based on my evaluation of those files, I'm not going to bother getting the newer D FA because the original A is excellent. (All the usual caveats apply about making decisions based on one copy of one lens and one test scene!) What this test does not do is speak to shift potential; the user who made the test is using a 645Z, so the whole image circle is not being used. Nonetheless, at the edges of the frame, the A is still better to my eye.
Testing Pentax 645 35mm - SMC Pentax-A vs HD Pentax-D FA - PentaxForums.com
Hello, Many of the reviews I've read here and other forums online have stated that while the A version of the lens is excellent, the HD version is
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