On 5 Oct 2005 at 9:53, Chip Louie wrote:
> Hi Carla,
>
> How wide do you need to go? The lens with the absolute widest coverage with
> excellent sharpness that can be had on your 1.6 factor body (or any other
> EOS digital for that matter), is the EF 15 2.8 full frame fisheye. I'm a
> professional architectural photographer and I use it all the time on my
> trusty old EOS 1DS to get shots that I just can't back up enough for like a
> standing room only bathroom. The trick is to defish the image file using
> one of the public domain programs like PTlens.
>
> For less than this level of coverage I have no problem with Sigma's new
> lenses but you have to realize that there will likely be compatibility
> issues down the road when you buy a new digital EOS body. This happens all
> the time and usually Sigma can rechip the lens to solve it but at some point
> in the lens life they won't do it anymore.
AFAIK, re-chipping was never needed in combination with high-end
bodies, only with lower grades.
Can't recall that this changed with the introduction of DSLR's,
instead of analog/film bodies....
--
Bye,
Willem-Jan Markerink
The desire to understand
is sometimes far less intelligent than
the inability to understand
<[EMAIL PROTECTED]>
[note: 'a-one' & 'en-el'!]
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