Focal length? Effective focal length? Actual focal length? Crop factor? Do you get more reach with a crop sensor? Is it equal to a longer focal length? There are some misconceptions surrounding what happens when a lens is used on cameras with different sensor sizes. Let’s have a look at the differences between a full frame, APS-C and micro 4/3 sensor.
Who cares that Olympus and Panasonic have released relatively few lenses, mainly slow zooms, for the micro 4/3’s cameras? Adding m4/3 mount adapters to your bag opens up a bevy of hundreds of lenses. What you gain in variety though, you may loose in automated functionality. Continue reading