How's the image quality using the Kenko Pro 300 2x with a EF 75-300mm lens?
Did a search and some said cannot auto-focus due to loss of 2 f-stops... also need at least F2.8 to focus...
Or is a 1.4x enuff already?
Just wanna some opinion from U guys 1st...
Thanks...
Did a search and some said cannot auto-focus due to loss of 2 f-stops... also need at least F2.8 to focus...
Or is a 1.4x enuff already?
Just wanna some opinion from U guys 1st...
Thanks...