I have checked the Pentax lens brochure which printed only the A2X-S is
compatible with the FA*300/4.5. Since you said you had used the A1.4X-S with
this lens, does it provide pin sharp result (especially at wide open)
without any mechanical incapability? How about vignetting? I would like to
buy one for my F*300/4.5 but concerned it might be incompatible. Your
comment would be helpful.
regards,
Alan Chan
>Alex, I've had the 300mm f4.5 FA lens for several years now and use it a
>lot
>by itself and with a Pentax 1.4 XS convertor. I have had absoluely no
>problems with it and am very happy with the results I get. It produces
>sharp
>images (I mostly shoot it from a tripod) and has a robust feel to it. Yes I
>would like a tripod mount on it but it did not deter me from buying it and
>I
>would do it again. For serious field use you really have to be concerned
>about the weight you are carrying around and for 300mm this lens is light.
>When you consider the cost and weight of the 300mm f2.8, the f4.5 is a
>tremendous lens. Hope this helps.
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