Hi new to camera stuff. I have a Canon G11 had it for about 12months now. Its has 5x times optical zoom. I have asked myself what does this really mean, why because Im thinking of progressing to a dslr body, perhaps the Canon 60D and have been thinking about what lenses i would get to go with it. And I'd like to know what a telephoto lens of 70-200mm lens will give me. My point and shoot G11 has a 28-140mm lens which I have been told is how marketing people come up with term "5x zoom" since 28 x 5= 140 .
Ok if this is so then a lens that is 50-250mm is also a 5X zoom. Now its here Im getting confused,probably because I have never had a dslr with a telephoto lens so have no experience about what sort of image I'm going to get. But am I correct in thinking that whilst both lenes are 5 times zoom the 50-250mm will give me nearly double the zoomed in image that the 28-140mm lens will because the starting point of magnification is different. Or will the camera sensor size make a big difference here.
My girl friend has a TZ10 which has 15X zoom ..Is that same as a 50-750mm on a camera with an APS-C sensor. I assume sensor in the TZ10 would be a lot smaller. As you can see Im confused
Ok if this is so then a lens that is 50-250mm is also a 5X zoom. Now its here Im getting confused,probably because I have never had a dslr with a telephoto lens so have no experience about what sort of image I'm going to get. But am I correct in thinking that whilst both lenes are 5 times zoom the 50-250mm will give me nearly double the zoomed in image that the 28-140mm lens will because the starting point of magnification is different. Or will the camera sensor size make a big difference here.
My girl friend has a TZ10 which has 15X zoom ..Is that same as a 50-750mm on a camera with an APS-C sensor. I assume sensor in the TZ10 would be a lot smaller. As you can see Im confused