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Thanks for looking. Comments welcome.

Taken on a very wet day at Banham zoo, Norfolk. Top three zoo in the U.K according to WHICH.

Brand:Canon
Camera:Canon EOS 600D
Recording media:JPEG (digital)
Date Taken:25 Aug 2011 - 12:08 PM
Focal Length:122mm
Lens Max Aperture:f/4.0
Aperture:f/8.0
Shutter Speed:1/30sec
Exposure Comp:0.0
ISO:400
Metering Mode:Average
Flash:No Flash
White Balance:Auto
Title:Pride
Username:markspice markspice
Uploaded:29 Jan 2013 - 5:37 PM
Tags:Wildlife / nature
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Votes:4

Comments

banehawi
banehawi Critique Team 9706 forum postsbanehawi vcard Canada2667 Constructive Critique Points
29 Jan 2013 - 6:28 PMConstructive Critique!This comment was flagged as constructive critique! 

Its very blurry. The reason for this is that your shutter speed is way too slow for the focal length you used. You havent told us which MODE you used for taking the shot, whether A, P, Av or Tv, so if you can do that, I can provide more helpful information.

What I can do is tell you how to know your MINIMUM shutter speed to hand hold a shot, - and thats if you have very steady hands, and youre not very close to the subject. Looks like you were fairly close. Closer = faster speed than minimum.

Min shutter speed - 1/(focal length * crop factor). Your camera is a crop factor, or APS-C sensor camera, with a crop factor of 1.6. So, using this image as an example, which you shot at 122mm, min shutter speed is 1/(122 * 1.6) = 1/195.2; the closest higher available speed = 1/200. or better still for a safety margin, 1/250th. You used 1/30, which as you can now see is way too slow.

Let me assume you use Av for the moment. When you select f/8.0. The camera will then select the speed based on what the ISO is set to (it will also select ISO if you have it set to Auto). Its only objective is to let enough light reach the sensor for a good exposure, so it selects 1/30. It doesnt care what lens youre using. Thats where you need to be very aware of the decision the camera made, then make the necessary changes to increase the shutter speed, closer to 1/250. You have 2 ways. One is to open the aperture to f/4.0, and the other is to increase ISO. In this case, you will need to do both, as using f/4.0 would only increase speed to 1/120th. So you would need to go to ISO 800 to be in the ballpark.

Looking through your animal sjots at the Zoo, I think this information will help a lot, as your speed is too slow in many shots. What sort of lens is this by the way?


Hope this helps, - if you have questions just send me a message.


One last tip, - never use a heavy black border, - it looks like a funeral memorial card!



Regards


Willie

Last Modified By banehawi at 29 Jan 2013 - 6:31 PM

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