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DPChallenge Forums >> Hardware and Software >> Sports photo Background Blur
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03/31/2003 11:55:14 PM · #1
I've been trying to take photos of Ultimate (frisbee). Some of the pictures I've seen people take of the sport with D-SLR's have been spectacular. I know that without dropping the cash to pick an SLR up as well, it can be difficult to compete but one thing I noticed about the nice action shots was how much the background is blurred (so that it's almost smooth).

I really like that effect, but can't seem to recreate it with my Sony 717. I've tried opening the aperature up all the way, but the most i've been able to get out of it is the foreground in sharp focus with the background only moderately fuzzy. I'm thinking of investing in a telephoto attachment if that would help accomplish blurring, but I might just save for an DSLR (*gulp*) if they're the smarter way to go.

Suggestions? :)

Nelson
04/01/2003 12:02:40 AM · #2
I think that most often occurs when the subject is in motion and you pan the camera, leaving the subject in focus and introducing a motion blur to the background. I think also the extremely long lenses most sports photogs use yields a shallower DOF, but I'm not so sure about that part. Check also in the older forums for a thread on Sports Photography 101.
04/01/2003 12:12:39 AM · #3
i hope gordon doesn't mind this but there are some good examples from him with exif data at the bottom

//www.pbase.com/gordonmcgregor/aflmar2003
04/01/2003 12:17:46 AM · #4
Hi Nelson, here is an excellent tutorial which shows you how to get this effect.

//www.dpchallenge.com/tutorial.php?TUTORIAL_ID=3
04/01/2003 12:41:17 AM · #5
Originally posted by GeneralE:

I think that most often occurs when the subject is in motion and you pan the camera, leaving the subject in focus and introducing a motion blur to the background. I think also the extremely long lenses most sports photogs use yields a shallower DOF, but I'm not so sure about that part. Check also in the older forums for a thread on Sports Photography 101.


Paul, Didn't we just have this discussion between us cause I am stuck on how to handle my action photo for the class I am taking? And still stuck with only 4 days left to complete the assignment.

You got two choices in action photos you either keep the subject in sharp focus by panning the camera or you blur the subject and have the background in focus. Just make sure you use a tripod to keep from getting the blotchy blur, whatever you chose to blur it will be a smooth blur with a tripood
04/01/2003 12:42:53 AM · #6
I can't remember, it's all a blur...
04/01/2003 12:48:27 AM · #7
Originally posted by GeneralE:

I can't remember, it's all a blur...


Go to sleep Paul, it won't be so blurry in the morning when you wake up...LOL

I'm going to take my own advice and do just that, of course it is almost 1 am here.
04/01/2003 12:56:25 AM · #8
I took this picture with my 717, and used the panning technique. I would've liked to have a smaller aperture (f8 is the minimum aperture for the 717) because the sun was too bright. And I couldn't get a slower speed because of the subject.



04/01/2003 11:36:33 AM · #9
You have two options really, both with different effects and implications:

1/ you can pan the camera, to get a sharp subject and a motion blurry background.

This is an example. You can do this technique with any camera, but most easily if you can control the shutter speed directly, either through manual modes or shutter priority modes. You can also indirectly do it by using a 'landscape photo' mode, which typically forces a small aperture for maximum depth of field (which has the knock on effect of using a slower shutter speed)

The second approach is to use a long (telephoto) lens, with a small aperture. Ideally you want something with an aperture below f4 and longer than 200mm to get effective background blur on sports. Usually you'll be quite far from the subject so need the reach of the long telephoto, and you'll need to speed of the fast lens to get a fast shutter speed to freeze the action and also to have a sharp subject with an out of focus/ blurry background. You'll have a really hard time trying to get that effect with a 717, without using photoshop.

The two galleries here might give you some idea of the difference - the June 2002 gallery was shot using a Canon G2, and the TXAFL metro tournament was mostly shot with a Canon D60 & 70-200 f4L, occasionally with a 1.4x teleconverter, and a monopod.
Even with the 70-200 f4L the background blur is still not as much as I'd like - but I can't afford a fast 400 or 600mm lens.

I'm not particularly happy with the shots in either of these galleries - the other thing about sports photography is it takes a lot of practice!

Message edited by author 2003-04-01 11:44:34.
11/12/2008 06:26:19 AM · #10
you get your answer here

Photography Background
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