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Zoom Changes Aperture in Manual Mode


Springfield, US
3 posts

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dwjantz Registered since 31st Jul 2006
Sun 06-Aug-06 02:54 AM

This is beginning to irritate me. I just began using the D70s (the Holy Grail) last week. My usual shooting is done in Manual mode. The lens I am using is a Promaster XR EDO AF 18-200mm. When I zoom in the aperture changes to a smaller one. If I have it set to 5.0 or 5.6 the further I zoom in the higher it goes. 6.0 +. Same for lower. Is this normal? I have a friend who shoots with a Canon 30D and hers does not do this at all. And if there is a setting to stop this I have not been able to find it.