If I'm remembering correctly, the FA has a wider focusing ring than the F
does (I believe someone referred to it as skinny), which is a
consideration, for me at least, using a lens that will require a lot of
manual focusing on the macroside of things. If I am remembering wrong,
hopefully someone will speakup. Hate spreading misinformation.
Dan Scott (who just today disovered lens doesn't have 2 'e's in it :-0 )
[EMAIL PROTECTED]
Rodger said:
>On Sun, 4 Feb 2001 at 01:21:09 -0500 (EST), "barry c."
><[EMAIL PROTECTED]> wrote:
>
>> I am currently trying to decide between the Pentax
>> 100mm f2.8 Macro Autofocus SMC-F and SMCP-FA versions.
>>
>> Optically, are they similar? I can pick up the *F*
>> version for about $10 less used compared with the *FA*
>> version.
>
>You can probably use a search engine to dredge up an old message from
>someone at Pentax Vancouver that implies what the differences are.
>
>IIRC, it is that the chips in the FA series communicate fuller
>information to the body than do those in the F series, mainly the
>MTF. Thus, it only makes a difference with AF bodies after the SF
>series.
>
>If the difference is only $10, I'd go for the FA, but I will say
>that my F model of this lens performs like a champ on the Z1-p.
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