>If I am looking to get a good focal length for birds and want very good, but
>not pro results, what is likely to better do the job..the 100-300 f5.6L plus
>a Kenko Pro 1.4x teleconverter or a Sigma 170-500 f5-6.3 APO aspherical?
100~300/5.6 + 1.4 = 140~420 f/8.
The f/8 could be an issue.
- --
regards,
Henry Posner>>>
Is that because the Elan 7 won't autofocus, because the image would be dim to manual
focus on or both. The more I read, it seems like there are no really good solutions
for my price range. Some of the more objective reviews of the Sigma 170-500 were not
so great so I am hesitent to get it. KEH has some 400 5.6L for about $850 (which is
pushing it a bit) but then I would run into the same f stop problem if I added a
teleconverter and I am worried that even were I to stick at 400 I might be a bit
disaapointed trying to get bird shots that fill the frame or even frame filling animal
shots at the zoo.
Sounds like no great solutions here.
Howard
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