Please repeat after me:  There is no such thing as equivalent focal length!

They are APS-C lenses and the focal lengths are as marked.  Super wide
angle lenses.

On Mon, Apr 12, 2010 at 8:48 AM, Keith Whaley <keit...@dslextreme.com> wrote:
> Bong Manayon wrote:
>>
>> Thinking of ...
>>
>> 1. Pentax DA 12-24
>> 2. Sigma 10-20
>> 3. Tamron 10-24
>>
>> Am not into fish-eyes so those options are out.  Any votes for or
>> against any of those listed above?
>>
>> Thanks!
>>
>> Bong
>>
>
> I don't think those focal lengths are 35mm-equivalent numbers. I suspect
> they're double ~ such as the Pentax DA 12-24 is really like a 35mm lens of
> 24-48mm focal length.
> Nice wide angle-to-normal lens, but hardly a fish-eye...
>
> keith whaley
>
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