300mm 2.8 AF: Sigma vs Pentax

[Kenneth Waller]

> Which 300/4.5 do I have? It must be the F. Mine has a tripod mount, and is
> wonderfully small, smaller than my FA200/4 macro.

Yep, that's the "F".
I really like to know the reason for the lack of tripod mount on the FA. 
Probably cost?

And my FA is not smaller than my "A*" 200mm f 4.0 macro.

Kenneth Waller
http://tinyurl.com/272u2f


----- Original Message ----- 
From: "William Robb" <warobb at gmail.com>
Subject: Re: 300mm 2.8 AF: Sigma vs Pentax


>
> ----- Original Message ----- 
> From: "Kenneth Waller"
> Subject: Re: 300mm 2.8 AF: Sigma vs Pentax
>
>
>> FWIW -
>>
>> I have the FA 300mm f4.5, Its a wonderful lens even if it doesn't have a
>> tripod mount.
>>
>> Unless you absolutely, positively need the extra light a 2.8 aperture
>> provides, I find it very hard to justify the extra cost of the 2.8 300mm
>> over the 4.5 300mm.
>
> Which 300/4.5 do I have? It must be the F. Mine has a tripod mount, and is
> wonderfully small, smaller than my FA200/4 macro.
>
> William Robb