Burris, James escribió:
Hello all,
Can I use the Sigma APO 1.4x with this lens? What about the 1.7x? Any
good 2x?
Thanks for your help. I may have a line on a 300mm but would like a TC
to go with it - especially the 1.7x if it works well.
I don't know about the Sigma
On Dec 13, 2007, at 12:09 PM, Jim King wrote:
... IMO there's no such thing as a good 2x TC except possibly for the
Pentax A-S and -L versions. I've used both on the f2.8 with decent
results.
Related to but not entirely on track with the original subject ...
In my experience, the Pentax-A
The A2X-S exaggerates fringing with the A400/5.6, but I still use it
with that lens now and then. It's the only way I can get enough reach
for small birds.
Paul
On Dec 13, 2007, at 4:29 PM, Godfrey DiGiorgi wrote:
On Dec 13, 2007, at 12:09 PM, Jim King wrote:
... IMO there's no such thing
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