Zoom ring rotation direction


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finkster

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Feb 12, 2003
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#1
I notice that canon lenses zoom to a longer focal length by rotating the ring counter-clockwise, & if I'm not mistaken, nikon does it clockwise. Any particular reason why canon or nikon did it this way? What about other brands, like sigma, tamron, tokina...?

I think the 'conventional' thinking would be clockwise to zoom more. Most prosumer digicams seem to do it this way.

If u are an SLR user, and if u had a choice between clockwise or counter-clockwise, which would u choose? Doesn't matter if u are already a canon or nikon user... just your personal preference.
 

ckiang

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#2
There's no right or wrong, all down to personal preference.

Nikon:
- Zoom in (increase focal length) = rotate clockwise
- Zoom out (decrease focal length) = rotate counter clockwise
- Focus to infinity = rotate clockwise
- Focus to minimum = rotate counter clockwise
- Counter clockwise to mount lens, clockwise to unmount

Canon:
- Zoom in (increase focal length) = rotate counter clockwise
- Zoom out (decrease focal length) = rotate clockwise
- Focus to infinity = rotate counter clockwise
- Focus to minimum = rotate clockwise
- Clockwise to mount lens, counter clockwise to unmount


Tokina : Canon mount lenses follow the Canon convention; Nikon mount ones follow Nikon

Tamron : Follow Canon

Sigma : Follow Canon I think.

Regards
CK
 

Del_CtrlnoAlt

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Feb 15, 2003
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#3
Originally posted by finkster
I notice that canon lenses zoom to a longer focal length by rotating the ring counter-clockwise, & if I'm not mistaken, nikon does it clockwise. Any particular reason why canon or nikon did it this way? What about other brands, like sigma, tamron, tokina...?

I think the 'conventional' thinking would be clockwise to zoom more. Most prosumer digicams seem to do it this way.

If u are an SLR user, and if u had a choice between clockwise or counter-clockwise, which would u choose? Doesn't matter if u are already a canon or nikon user... just your personal preference.
i think most digicams can do it with software to either way.
 

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