Author Topic: Flying birds and shutter speed  (Read 10177 times)

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Offline Clive

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Flying birds and shutter speed
« on: April 01, 2008, 05:54:24 PM »
Rob inspired me to post this following Stef's bird shots. This may tell you a thing or two about required shutter speeds for fast objects. Blurred wings can be a good thing. But if they are too blurred because of slow shutter speed it is also likely the overall image is not sharp.

Here are some examples of flying geese with diff shutter speeds .... some comments added. Will give you some idea of what is needed.


This is too slow--you can see the warm evening light--thus reducing shutter speed. The only reason the head is somewhat sharp at this slow speed is because 1) I was panning and 2) I was lucky..probably erased a lot of blurry images from this session.


Some wing-tip blur even at 1/1500


Quite blur free at 1/2000


Blur free at 1/2000 but this bird's wings were also in glide form


Blurry wing tips, but it is not objectionable.


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Offline Rob aka [minolta mad]

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Re: Flying birds and shutter speed
« Reply #1 on: April 01, 2008, 08:56:37 PM »
As said in Stefs post Clive,
Very good information and demonstrated well with the images and their shutter speeds.


Thanks for sharing



Rob

Offline tpe

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Re: Flying birds and shutter speed
« Reply #2 on: April 01, 2008, 09:15:16 PM »
...and very usefull, thanks

tim

Offline Stef.

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Re: Flying birds and shutter speed
« Reply #3 on: April 02, 2008, 10:20:30 PM »
Yes thanks again helps heaps! So you don't "care" about shallow depth of field but aim for the fastet shutter speed possible (generally)? Are you then trying to get the focus on the eyes in the hope that with the shallow depth of field you get them in focus? (My old question usually referring to fast lenses and shalow dof...)
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Offline Clive

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Re: Flying birds and shutter speed
« Reply #4 on: April 02, 2008, 10:36:30 PM »
Yeah Stef., it is all about shutter speed and you take what aperture the cameras offers. (You do not have to stop action as noted by the flutteirng on your greater Antillean grackle. Wing blur can be very effective--provided the head is sharp.)

The head has to be in dead focus and that is why we shoot digital these days--on moving stuff I shoot a LOT for two reasons. 1) As good as AF is, it is not perfect. 2) As good as I think I am, my aim is not perfect. See below. :P

I get about one good shot per 100 images on flying birds. I've had days where nothing works. I recall one day two years ago I took around 800 images and got about 20 good pcitures--and a handful of top-drawer images ...one I sold recently. Digital rocks. I'd quit taking serious pictures before DSLRs came out.  It is all good.

One more thing. If the light/lens is too slow then boost the ISO...or come back tomorrow when conditions improve. You are better off with a noisy image than a blurry image--or NO image. Case in point about high ISO salvaging a "one of" chance. The moose is blurry from panning, but high ISO salvaged the actual moose shot.

OOPS ... it is the aim stoopid! ;) (And, yes, that is a skim of ice on the background pond! Been cold here again!)

« Last Edit: August 22, 2008, 09:46:36 PM by Clive »
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Offline Stef.

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Re: Flying birds and shutter speed
« Reply #5 on: April 02, 2008, 10:39:41 PM »
You made it completely clear! Thanks again! Isn't that forum heaven ;)
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Offline Akshay Jamwal

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Re: Flying birds and shutter speed
« Reply #6 on: April 03, 2008, 08:04:24 PM »
Wouldn't have expected the wing-tip blur at 1/1500th, that was quite a surprise.

Thanks for sharing.
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Offline Clive

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Re: Flying birds and shutter speed
« Reply #7 on: April 04, 2008, 02:17:49 AM »
Wing tips are moving very fast at the top and bottom of the wind stroke. Could work out the speed....Note that some of the blur in the 1/1500 sec image is DOF.
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