Birding with a 500mm F4 or 600mm F4

Started 10 months ago | Discussions thread
kayaker353
Contributing MemberPosts: 533
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Re: Birding with a 500mm F4 or 600mm F4
In reply to abcdefghijklmnop, 10 months ago

I have had the 500 f4 for about 3 years.  I have tried it with all three TC's, but only get acceptable results with the 1.7.  The 1.4 will not tune within the -20 to 20 range (looks like it needs 22).  Seeing and focusing with the 2.0 is difficult and requires a lot of light.  In looking for images from last year, I found that the vast majority were taken with the bare lens.  I am including one image from the bare lens and one with the 1.7TC.  I have carried the lens on a 9 mile hike looking for a snowy owl who wasn't in that day.  Have gotten a better backpack, so it should be easier in the future.  I cannot handhold the lens without a rest or prop of some kind.

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