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zoom lock on sigma lenses...28-300.

 
 
tbm
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      02-16-2005
hi group,
correct me if im wrong but i find this zoom creep lock on these lenses is only good for one thing.locking the lens in the 28mm
position.i think it would be more advantageous if the lock worked at all focal length's.opinions/comments please boys and
girls.regards to all from TBM...

 
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bmoag
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      02-17-2005
I think it would be more advantageous if the lock prevented that lens from
being attached to any camera.


 
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Pete D
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      02-17-2005

"bmoag" <(E-Mail Removed)> wrote in message
news:QCSQd.729$(E-Mail Removed). ..
>I think it would be more advantageous if the lock prevented that lens from
>being attached to any camera.
>


Had a bad experience with one?


 
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Mac
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      02-17-2005
I made a comparative test between this Sigma (28-300) and new Sigma 80-400mm
OS. With the same parameters (ISO 800, f/14, 1/125s, 300 mm) the picture
taken with Sigma 28-300 is visible more sharper then one taken with Sigma
80-400mm OS. Both pictures are taken "hand-held" from the appartment window
(the subject was the ornament from the building, cca 30m distance). The OS
function of Sigma 80-400mm was ON. So, I am really satisfied with my
"cheapo" lens 28-300 (200$ in comparison with 1000$+ for 80-400mm). Of
course, the 80-400mm has OS (optical stabilizator) and will allow to use
slower shutter speed for "hand-held" shooting.

Mac

Pete D wrote in message ...
>
>"bmoag" <(E-Mail Removed)> wrote in message
>news:QCSQd.729$(E-Mail Removed) ...
>>I think it would be more advantageous if the lock prevented that lens from
>>being attached to any camera.
>>

>
>Had a bad experience with one?
>
>



 
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Pete D
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      02-17-2005
I have a Sigma 55-200 mm and under some circumstances it is very sharp,
other times not so good, still trying to sort out when it is good and why.


"Mac" <(E-Mail Removed)> wrote in message
news:cv1os5$3fh$(E-Mail Removed)...
>I made a comparative test between this Sigma (28-300) and new Sigma
>80-400mm
> OS. With the same parameters (ISO 800, f/14, 1/125s, 300 mm) the picture
> taken with Sigma 28-300 is visible more sharper then one taken with Sigma
> 80-400mm OS. Both pictures are taken "hand-held" from the appartment
> window
> (the subject was the ornament from the building, cca 30m distance). The OS
> function of Sigma 80-400mm was ON. So, I am really satisfied with my
> "cheapo" lens 28-300 (200$ in comparison with 1000$+ for 80-400mm). Of
> course, the 80-400mm has OS (optical stabilizator) and will allow to use
> slower shutter speed for "hand-held" shooting.
>
> Mac
>
> Pete D wrote in message ...
>>
>>"bmoag" <(E-Mail Removed)> wrote in message
>>news:QCSQd.729$(E-Mail Removed) m...
>>>I think it would be more advantageous if the lock prevented that lens
>>>from
>>>being attached to any camera.
>>>

>>
>>Had a bad experience with one?
>>
>>

>
>



 
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