In theory it should because it is gathering the light from a wider area than the sensor would normally see and putting it onto the same sensor area so the light density (if such a term is correct) will increase. This doesn't take into account any light loss through the additional lens though.
Originally Posted by rawhead
I remember when my father owned an Olympus E20. It came with wide angle and tele convertors which fitted to the front of the lens. I remember him telling me that with a front mounted wide convertor there was no increase in aperture like you get with a tele convertor. There was however, no claim that it made the lens faster though!
Last edited by Steve Smith; 01-15-2013 at 12:40 PM. Click to view previous post history.