Smallest aperture of a zoom lens at each focal length?

[dRebelXT]

Is it possible to read the smallest F number of a zoom lens from the specification sheet?
I mean for the lens with varying largest aperture.

[Snoweagle]

Originally Posted by dRebelXT Is it possible to read the smallest F number of a zoom lens from the specification sheet? I mean for the lens with varying largest aperture.

When you buy a new lens sure have put max n min apertures mah. Sometimes you've to try it out. Once i was able to achieve a minimum of f/38 on my tamron lens!

[yyD70S]

Originally Posted by dRebelXT Is it possible to read the smallest F number of a zoom lens from the specification sheet? I mean for the lens with varying largest aperture.

Usually at the two extreme focal lengths of the zoom. In between, I don't think it's stated. You have to find that out yourself.

[Maltese]

eh? have mah - u check the system chart in Canon EOS website, they will list out all the specs from their list of lens. Usually the prime lenses will have bigger min aperture. Alternatively try it on a cam is the fastest way to go.

[Snoweagle]

Originally Posted by Maltese eh? have mah - u check the system chart in Canon EOS website, they will list out all the specs from their list of lens. Usually the prime lenses will have bigger min aperture. Alternatively try it on a cam is the fastest way to go.

Not necessary...Canon's prime lens have a minimum aperture range between f/1.0 and f/5.6