Lenses (Push Pull & Manual Overide)


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cichlid

Senior Member
Dec 2, 2006
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S'pore
#1
Hi fellow CSer

I came across an ad in BNS that described the 80-200 f2.8 lens as "push pull" type.
What's this? Is it better than conventional type?

The other question is, why do photographer want to "manual overide" when he is already auto-focusing.

Does it mean sharper pics?

Regards
Cichlid
 

ExplorerZ

Senior Member
Jan 9, 2006
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West Legion
hkchew03.deviantart.com
#2
Hi fellow CSer

I came across an ad in BNS that described the 80-200 f2.8 lens as "push pull" type.
What's this? Is it better than conventional type?

The other question is, why do photographer want to "manual overide" when he is already auto-focusing.

Does it mean sharper pics?

Regards
Cichlid
the "push pull" of 80-200 f2.8 (sld be a nikkor) meant that you push/pull instead of turn to zoom in/out not focus...

as for manual override, it could be because maybe the photog wanted to change his focus without use AF or switch back to manual focus...
 

TMC

Senior Member
Sep 4, 2004
6,321
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Beyond Space-Time Continuum
#3
AF does not guarantee that the it will always AF on the point you want. So that is where manual override comes in, AF to the closest point and adjust to when you want.
 

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