cspratt
Well-known member
Is the 300 F/4L IS USM lens and a 1.4x converter combo any good? Is
this a good lens with or without the converter? You get a fixed 300mm
lens at F/4 and you can get 420mm with the 1.4x (f/5.6) or 600mm with
the 2x at F/8. Or should I just buy the 100-400 IS lens for birding? I
would like both but can only afford the one. Right noew I have the
28-135 IS USM lens which I find a wee bit soft but I've only had the
setup 2 weeks.
this a good lens with or without the converter? You get a fixed 300mm
lens at F/4 and you can get 420mm with the 1.4x (f/5.6) or 600mm with
the 2x at F/8. Or should I just buy the 100-400 IS lens for birding? I
would like both but can only afford the one. Right noew I have the
28-135 IS USM lens which I find a wee bit soft but I've only had the
setup 2 weeks.