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Old Nov 10, 2007, 4:30 PM   #1
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I finally had a chance to try my new 500 F4 today. The birds at the feeder were all out of focus :sad:so I set up my favourite gargoyle in the backyard for some tests.

How does the sharpness and contrast look? I took this shot from at least 50 feet away at F11.

Thanks

Jim

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Old Nov 10, 2007, 4:37 PM   #2
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Old Nov 10, 2007, 8:51 PM   #3
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It should be this sharp @ f/4:





Are you in single-shot AF or AI-servo?
-> This makes a lot of difference !!!
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Old Nov 11, 2007, 12:03 AM   #4
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It was in single shot. I think the gusty wind might have played a part in the quality of the pictures.I should have mentioned I was using the 1.4 extender as well.

Jim
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Old Nov 11, 2007, 6:24 AM   #5
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killdeer0007 wrote:
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It was in single shot. I think the gusty wind might have played a part in the quality of the pictures.I should have mentioned I was using the 1.4 extender as well.
No problem with sharpness as this is with an extender as well handheld @ 1/800s f/7.1 - 700mm:



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Old Nov 11, 2007, 8:54 AM   #6
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Which lens did you use for these shots? What was the distance? I was pretty close to the feeders and shooting at 5.6. I'm going to take the extender off and try stopping down. The feeders are probably 30 feet away. Here's an example: body is focused but face isn't.

//jim

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Old Nov 11, 2007, 12:17 PM   #7
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killdeer0007 wrote:
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Which lens did you use for these shots? What was the distance? I was pretty close to the feeders and shooting at 5.6. I'm going to take the extender off and try stopping down. The feeders are probably 30 feet away. Here's an example: body is focused but face isn't.
The EF-500mm f/4L of course: http://forums.steves-digicams.com/fo...mp;forum_id=65

You got to remember @ theses focal lenghts the DOF is razor thin even when close down at close distances - Check out this image @ f/10 and 700mm with the 1.4x teleconverter, around 40~50 feet, only the bird is in focus while the grass blades in front and back are totally out (which is what you want...) of focus!




-> Which is why I rarely shoot in AI-servo :idea:
With a lens this heavy you can not hold it steady, and when you do move the camera's AF will dither back and forth to track thinking the subject has moved and unless you shoot a burst and pick out the best you'll end up with back and front focus images in the lot...
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Old Nov 11, 2007, 4:46 PM   #8
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Your shots just keep getting better! If you don't mind me asking, where on the bird did you aim?

Thanks

Jim
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Old Nov 12, 2007, 8:13 AM   #9
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I usually aim for the head although sometime it's hard to tell the head from the body... As this tiny manakin is only about 3"in leght: :-)

o 1/250s f/14 with flash with the 500 f/4 - See how narrow the DOF is @ f/14 at close distances?
-> Practically everything else is out of focus. Turning the flash off and use IS only @ larger aperture is probably not the way to go!!!



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Old Nov 12, 2007, 9:50 PM   #10
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Thanks NHL

In case you are still following this thread, I've attached a house sparrow I shot at F11 at approximately the same distance of the feeder.

I've got to experiment with aperture on these close shots.

//jim

Last edited by killdeer0007; Sep 13, 2009 at 4:06 PM.
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