Dear Boz,

I looked at your newly updated Pentax pages. With respect to the primes I
hold this is a clear improvement. I spotted a typo in your description of
the FA43/1.9. You write: "..., the AF somwhat low." I guess you meant the
AF is slow. The "is" is missing as well.

Since my FA50/1.4 got stolen I own this lens. I would like to comment a
bit from my experience. I leave it up to you what you do with it.

I wouldn't call the focusing mechanism stiff. I can focus it with a single
finger, holding the body (MZ-5n) with both hands and using one finger of
the left hand. We dicussed that some time ago on PDML, other users
reported this as well. This I can't do with an MF lens.  (I own M135/3.5
at this time). In comparison to a cheap Tamron 28-80 zoom the focus is
slow as was my 50/1.4. I think this is more the slower transmission for
the faster lens. The AF transmission shaft has to do many more rotations
to focus the lens to a given distance than on the zoom. I expect this is
due to the DOF being more shallow and therfore one had to increase
precision on the expense of AF-speed. I recall my FA50/1.4 to be even more
slow and fuzzy in AF then the 43/1.9. Please note that this is a HIGHLY
subjective comment, since I changed body together with the lens (stolen
together with my lens) and I can't perform side by side comparisons.

I had two shots with my 43/1.9 which show evidence of flare. Something I
never had with my 50/1.4. Wide open with both lenses I get (got) double
structures in the background, so I wouldn't give high marks for Bokeh to
either lens, when fully open. Distortion of the 43 is clearly not as good
at the 50/1.4. I am not convinced the 43/1.9 is optically better than the
50/1.4. With respect to the AP article you quote, they clearly point out,
a 43mm is harder to do than a 50mm lens. So this is a typical `apples and
oranges' issue I raise here.

For me the 43 shines with respect to handling, quality of build and being
43mm. Because of being shorter and more light weight it balances better on
a MZ-5n than the FA50/1.4 did. Also I have a strong preference for the
slightly wider angle. It makes more difference than I ever thought. My
advise here would be: `Don't buy a 43 if you want a 50 and vice versa.'

While typing, I realised this might be interesting to cross post to PDML,
to get you some comments of otheres on the issue. I hope you don't mind.

Joachim


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