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Using the 1.4 extender

FORUMS Photography Talk by Genre Bird Talk
Thread started 04 Apr 2009 (Saturday) 08:43   
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artyman
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Following on from my trip out last week using the Sigma 1.4 extender on the 150-500 I wasn't fully satisfied with the quality of the shots, so experimented today in the garden whilst having my lunch to see if I could improve the quality by stopping down a bit more.

Sadly today no birds chose to join me, perhaps they don't like ham sandwiches so I had to make do with this fly, OK at least it's got wings. :D

The first shot is the full frame and the second a 100% crop. Shot at 1/1000 f11 ISO-800 and manual focus obviously. I think the quality is quite acceptable when you think that this fly was about 13 ft from me. I hope this is helpful for anyone considering the Sigma lens or the 1.4 extender.

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Post #1, Apr 04, 2009 08:43:41


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Ken
Canon 7D, 350D, 15-85, 18-55, 75-300, Cosina 100 Macro, Sigma 120-300

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LordBrian
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How do you find the manual focus. I am not sure I ever hit the sweet spot especially on moving targets.

Post #2, Apr 04, 2009 14:32:49


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artyman
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I don't find manual focus a problem, in fact it seems easier with the extender attached than without it, as the depth of field is so small, as you are at full aperture whilst you are focusing. Iv'e only had AF since moving to digital just over two years ago so haven't completely lost the ability to manual focus and I find I stand a better chance with BIF using manual.

Post #3, Apr 04, 2009 16:44:11


Art that takes you there. http://www.artyman.co.​ukexternal link
Ken
Canon 7D, 350D, 15-85, 18-55, 75-300, Cosina 100 Macro, Sigma 120-300

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Tom ­ Reichner
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artyman wrote in post #7667188external link
. . . and I find I stand a better chance with BIF using manual.

Even when they're flying right at you?

Post #4, Apr 05, 2009 12:14:12


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artyman
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Never happens, I think they don't like the look of me :lol:

Post #5, Apr 05, 2009 16:35:42


Art that takes you there. http://www.artyman.co.​ukexternal link
Ken
Canon 7D, 350D, 15-85, 18-55, 75-300, Cosina 100 Macro, Sigma 120-300

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