I am very new to DSLR, previously using compact, just started stepping into DSLR world, kind of lost, wish to have some basic understanding,
read through the newbie corner, but cannot find any info on the below explaination.
Example:
EF-S 18-55mm f3.5-5.6 IS (currently using this kit lens)
EF-S 18-200mm f3.5-5.6 IS
EF-S 17-85mm f4.0-5.6 IS USM
EF 24-105mm f4L IS USM
EF 28-135mm f3.5-5.6 IS USM
EF 28-200mm f3.5-5.6 USM
Base on the above examples?
1) What is the difference between EF and EF-S lens?
2) what is the ??-??mm number means, eg 18-55mm?
3) what is the f number means, eg f3.5-5.6?
4) Which has better wide angle?
5 if we talk about 28-200mm, what is the equivalent zoom range to those compact digital camera, is it 5x zoom?
many thanks in advance.
read through the newbie corner, but cannot find any info on the below explaination.
Example:
EF-S 18-55mm f3.5-5.6 IS (currently using this kit lens)
EF-S 18-200mm f3.5-5.6 IS
EF-S 17-85mm f4.0-5.6 IS USM
EF 24-105mm f4L IS USM
EF 28-135mm f3.5-5.6 IS USM
EF 28-200mm f3.5-5.6 USM
Base on the above examples?
1) What is the difference between EF and EF-S lens?
2) what is the ??-??mm number means, eg 18-55mm?
3) what is the f number means, eg f3.5-5.6?
4) Which has better wide angle?
5 if we talk about 28-200mm, what is the equivalent zoom range to those compact digital camera, is it 5x zoom?
many thanks in advance.