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Blurry picture
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Oct 30, 2015 16:00:41   #
dylee8 Loc: South Florida
 
This is taken with Nikon D7000 and Sigma 150-600mm C on a tripod. As indicated in EXIF, f 8.0 and 1/800 sec. Any idea why it is sharp around the eye and blurry at the beak? Thanks.


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Oct 30, 2015 16:12:12   #
big-guy Loc: Peterborough Ontario Canada
 
It looks like he is in mid shift/flip to get the snake in a better position. The blur gets progressively worse as you move away from the head with the beak tip showing the most blur. Yes, you can get blur even at 1/800 second. The anny mammals have to be fast if they wish to keep there dinner, or keep from being dinner.

dylee8 wrote:
This is taken with Nikon D7000 and Sigma 150-600mm C on a tripod. As indicated in EXIF, f 8.0 and 1/800 sec. Any idea why it is sharp around the eye and blurry at the beak? Thanks.

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Oct 30, 2015 16:40:07   #
oldtigger Loc: Roanoke Virginia-USA
 
dylee8 wrote:
This is taken with Nikon D7000 and Sigma 150-600mm C on a tripod. As indicated in EXIF, f 8.0 and 1/800 sec. Any idea why it is sharp around the eye and blurry at the beak? Thanks.

because the beak is moving.

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Oct 30, 2015 16:44:33   #
rockdog Loc: Berkeley, Ca.
 
dylee8 wrote:
This is taken with Nikon D7000 and Sigma 150-600mm C on a tripod. As indicated in EXIF, f 8.0 and 1/800 sec. Any idea why it is sharp around the eye and blurry at the beak? Thanks.


Great catch here dylee8. I think it is subject motion blur. Big guy has it right, the 'flip" is very fast...ask the snake. The tripod is a big help with camera shake but only shutter speeds of 1/1,200 or faster will freeze this quick movements.
Phil

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Oct 30, 2015 16:52:24   #
Rongnongno Loc: FL
 
The blur is motion. When an object moves faster than the rest you have this type of bur artifact.

It then becomes a matter of choice when you shoot.

Freeze all - Faster speed -)? Higher ISO (noise) or larger aperture (narrow depth of field). You use both to mitigate the side effects.

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Oct 30, 2015 18:26:57   #
dylee8 Loc: South Florida
 
Thank you all. Makes sense. I was hoping this is the answer, as opposed to depth of field of my lens at 600mm.

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Oct 31, 2015 06:36:57   #
sourdough58 Loc: Maine
 
Would Focus Magic fix the blur?

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Oct 31, 2015 08:11:07   #
Delderby Loc: Derby UK
 
sourdough58 wrote:
Would Focus Magic fix the blur?


If there is an app that can sort that out then I will be the next customer for it.
I am surprised that the motion blur has occurred. There must have been some very speedy movement. I shall take note - up my notions of freezing movement even if needing to up the ISO. Great pic though!

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Oct 31, 2015 08:12:40   #
Delderby Loc: Derby UK
 
doubled up somehow

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Oct 31, 2015 09:05:17   #
Chuckwal Loc: Boynton Beach Florida
 
Actually the photo of the bird is great anf your bokeh i good too
chuck

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Oct 31, 2015 09:39:23   #
joehel2 Loc: Cherry Hill, NJ
 
The beak was moving but the eye was locked on the prize.

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Oct 31, 2015 12:05:54   #
John_F Loc: Minneapolis, MN
 
dylee8 wrote:
Thank you all. Makes sense. I was hoping this is the answer, as opposed to depth of field of my lens at 600mm.


With that long lens you were at least at a safe distance just in case the snake flip might have sent the critter your direction!

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Oct 31, 2015 14:14:07   #
jeep_daddy Loc: Prescott AZ
 
dylee8 wrote:
This is taken with Nikon D7000 and Sigma 150-600mm C on a tripod. As indicated in EXIF, f 8.0 and 1/800 sec. Any idea why it is sharp around the eye and blurry at the beak? Thanks.


This wouldn't have happened if your shutter were up to 1/2500th instead of 1/800th.

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Oct 31, 2015 15:46:44   #
tk Loc: Iowa
 
Because the eye is in great focus the picture is appealing. If the beak were in perfect focus but the eye was out, no one would care for the shot. You did a great job. I like it.

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Oct 31, 2015 15:52:31   #
Retina Loc: Near Charleston,SC
 
dylee8 wrote:
This is taken with Nikon D7000 and Sigma 150-600mm C on a tripod. As indicated in EXIF, f 8.0 and 1/800 sec. Any idea why it is sharp around the eye and blurry at the beak? Thanks.
It reminds me of the "whip" maneuver when skaters line up, or the rim parts of a wheel moving faster than its hub, the head of a golf club, the tip of a bat, etc. The end of the beak is simply the fastest moving part of the head and shows the longest trail during the brief exposure. 1/800 is not all that fast for this type of shot. Nice photo. I agree with the last note that it adds to the photo.

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