What do you guys and gals think?

Joined
Feb 26, 2007
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BUCKEYE STATE
Strictly talking IQ, is there much difference between a 300 f4 afs and a 300 f4ED af (not sure if d)? I realize the focus speed will be slower, and filter sizes are different, minimum focus distance more, etc. My primary use would be birds and animals (hopefully stationary). I have no other AFS lenses at this time, so I am used to the slower focus speed.

I did have an opportunity to try another member (Bob Coutant's) 300 AFS and of course liked it very much. He very graciously allowed me to come to his farm last Friday and shoot some frames with his lens.

Another plus, in my situation with the older lens, is that my teleconverter will autofocus, where it will only meter with the AFS lens.

Any insight you may offer will be appreciated and noted.

Thanks
 
Joined
Mar 21, 2006
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1,706
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New Zealand
For what it's worth, both have 2 ED elements, so the older version should be well corrected for CA like the AFS version.

Apart from the differences noted above, the AFS version has full-time manual over-ride which could be quite useful. The older AF 300/4 has a AF/M switch on the focus ring but it's an old design, the camera also needs to be switched to manual to get manual focusing. If you often switch between AF and manual focusing, the AFS version is much better.
 
Joined
Feb 26, 2007
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BUCKEYE STATE
I have the older non-AFS 300mm f/4 and optically it is absolutely stellar. here is a sample I shot from my backyard:

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That is a very sharp image IMO. Thanks for taking the time to post it. The information regarding the focus limiter is interesting also. I can see where that would be useful.

Thanks again
 
Joined
Feb 26, 2007
Messages
2,163
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BUCKEYE STATE
Thanks Jim and Igor. The closer focusing with the AFS version is something I would like very much. Other than the convenience, it doesn't sound as if I can go wrong with either. Thanks again everyone.
 
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