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July 25, 2012
Hello, this is a topic to discuss the differences btw those 2 lenses:
17-35 F/2.8 D ED-IF
17-55 F/2.8 G ED-IF
Of course the is the zoom aspect, but what about the D one had the apperture ring…is good or bad?
Forget also the aspect of the film cameras compatibility…how this ring works in reality? Is necessary to give the apperture in the camera and then ajust it on the ring? Sorry about the silly question.
October 11, 2012
Having a manual aperture ring is a personal preference.
The advantage is you can use cheap extension tubes or a reversing ring for macro and still have full control over the aperture.
The disadvantage is if you shoot stopped down such as f/11 the viewfinder will appear dark. With a lens that the aperture is controlled by the camera the lens is not actually stopped down until you press the button half way to achieve focus so it may be easier to frame stopped down.
If you have a manual aperture ring it does not matter what camera setting you have for aperture as the aperture is controlled manually. On my lenses with aperture rings only full stops are marked but there are clicks every third stop.
For example if I am on f/2.8 and want to go to f/6.3 I know that I need to turn the aperture ring until I hear or feel 7 clicks or look and go 1click past
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