- Messages
- 3,145
- Name
- Graham Mc
- Edit My Images
- Yes
I've been wanting the Sigma 120-400 f4.5-5.6 for general wildlife & birds, but i'm have now been drawn to the Sigma 100-500 f5.6-6.3, can anyone tell me what the aperture is @ 400mm on this lens please, also which is the better lens apart from the extra reach ? i thought about a x1.5 TC but i have some money for a new lens.
Thanks.
Thanks.
you really aren't making it easy for me are you
the 150-500 is back in the frame (but not full frame) it's just the narrower aperture that puts me off over the 120-400. But...then i'm not planning on shooting birds/wildlife on cloudy dary miserable days. Umm more thinking to be had.


