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retractable zoom
In the compact world (both film and digital) we see a lot of retractable zoom. Why isn't there any like that in the SLR world ? I mean, the compact 35mm film had a "sensor" of 24x36mm, so the lens "output" had to be that big, right ? Is it because not enough light was coming out of it ? I'm finding old 35mm film compact with F2.8 apperture.... Were does forcing high ISO numbers ? I guess what I am asking is why the lenses for DSL are so big ? Thanks. |
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retractable zoom
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#3
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retractable zoom
wrote in message news:xmwVg.100587$5R2.45191@pd7urf3no... In the compact world (both film and digital) we see a lot of retractable zoom. Why isn't there any like that in the SLR world ? I mean, the compact 35mm film had a "sensor" of 24x36mm, so the lens "output" had to be that big, right ? Is it because not enough light was coming out of it ? I'm finding old 35mm film compact with F2.8 apperture.... Were does forcing high ISO numbers ? I guess what I am asking is why the lenses for DSL are so big ? Thanks. who say there's no retractable zoom inSLR? They mostly ARE retractable. They are just bigger. plain physics. |
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retractable zoom
wrote in message news:xmwVg.100587$5R2.45191@pd7urf3no... In the compact world (both film and digital) we see a lot of retractable zoom. Why isn't there any like that in the SLR world ? I mean, the compact 35mm film had a "sensor" of 24x36mm, so the lens "output" had to be that big, right ? Is it because not enough light was coming out of it ? I'm finding old 35mm film compact with F2.8 apperture.... Were does forcing high ISO numbers ? I guess what I am asking is why the lenses for DSL are so big ? Thanks. Not sure what you are talking about. In some cases, lenses made specifically for DSLR cameras are pretty small. Most lenses do get bigger and heavier when you increase the size of the aperture, and most manufacturers best lenses are made for both full frame and DSLR, so they are just bigger. The only true retractable lenses I recall were made for rangefinder 35mm cameras, and as you can tell most point and shoot lenses are retractable. Too much stuff in the way to retract a quality lens on a DSLR. |
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