Quote Originally Posted by Squidy View Post
Hi all,

I've got the 70-200 F2.8 non IS lens and I'm pretty impressed with the clarity, but not so much the reach. I was looking at getting one of the extenders but can't work out which one. I've been told to get the 1.4 but it might not have the reach I may need, but apparently it's fast to focus and has great image quality. The 2.0 would give me the reach I need but I've been told that the image quality drops considerably and focusing is far slower.
If you NEED this reach you speak of, perhaps you NEED to spend the money on a proper lens to do the job. I really like LensRental's characterization: if you've spent thousands on a lens that has already gathered the light and has it all ready to shine on the sensor, why would you stick something in the way to mess it all up? I tried a 1.4x III on a 600/4 IS II and wasn't overly impressed, even on a decent RRS tripod with Wimberley gimbal head.