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FORUMS Photo Sharing & Visual Enjoyment Birds 
Thread started 15 Jul 2010 (Thursday) 18:10
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Red Tails?

 
nvchad2
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Jul 15, 2010 18:10 |  #1

Took these yesterday. Only managed to get 6 decent shots after 3 hours stalking them through the woods. Pretty sure theyre red tails but have a bit of doubt. All comments and suggestions are welcomed.

And if anyone can tell me why the purple halo effect is so vibrant on the first one I would really appreciate it.


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Sony: 50/f1.8 | 18-55/f3.5 | 18-70/f3.5
Sigma: 70-300/f4
Opteka: 500/f8

  
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canonloader
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Jul 15, 2010 18:13 |  #2

Looks like Coopers Hawks to me. A Red Tail probably won't be in the woods, they like open fields more.


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Jul 15, 2010 18:16 |  #3

I'm thinking Cooper's too but have been wrong before.

The purple halo is Chromatic Aberration induced by the lens. Only way to avoid it is to buy high quality = lots of $$.


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nvchad2
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Jul 15, 2010 18:24 |  #4

Really? Coopers hawk? I considered that but couldnt tell from the pictures I had. And i thought it might have been the lens but wasnt sure. I dont have money for better lenses at the moment, especially since my 70-300 is being sent off for repairs tomorrow. :cry:


Sony a300

Sony: 50/f1.8 | 18-55/f3.5 | 18-70/f3.5
Sigma: 70-300/f4
Opteka: 500/f8

  
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canonloader
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Jul 15, 2010 18:32 |  #5

Purple fringing is mostly caused by high contrast situations, like these back lit frames. It's not all from cheap glass either. The Canon 40D was quite famous for giving purple fringe images in the right situations, even with L glass. A few other models do it also. Small amounts can be fixed in Photoshop, but this is a lot.


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nvchad2
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Jul 15, 2010 18:35 |  #6

if you think THAT was a lot, you should've seen it after I printed it. :lol: Showed up REALLY bad. Any suggestions for next time im in a similar situation?


Sony a300

Sony: 50/f1.8 | 18-55/f3.5 | 18-70/f3.5
Sigma: 70-300/f4
Opteka: 500/f8

  
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canonloader
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Jul 15, 2010 18:39 |  #7

Try and reduce back lighting. See the dark leaves and bird against a bright sky background. You have to reduce stuff like that. Even with the best cameras and lenses. :)


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Jul 15, 2010 18:39 |  #8

You shot this with a Sony?
Aperature Value = 1.0
ISO 800

Can't see the tail here, but it looks to be a Coopers Hawk


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nvchad2
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Jul 15, 2010 18:43 |  #9

joayne wrote in post #10544229 (external link)
You shot this with a Sony?

Yea, a300 with 500mm lens.

canonloader wrote in post #10544227 (external link)
Try and reduce back lighting. See the dark leaves and bird against a bright sky background. You have to reduce stuff like that. Even with the best cameras and lenses. :)

I see youre point. ;) I was just happy to get these after 3 hours hunting. lol


Sony a300

Sony: 50/f1.8 | 18-55/f3.5 | 18-70/f3.5
Sigma: 70-300/f4
Opteka: 500/f8

  
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peregrineflier
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Jul 15, 2010 20:23 |  #10

I agree, cooper's hawk


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Tim ­ Kostka
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Jul 15, 2010 20:39 as a reply to  @ peregrineflier's post |  #11

Stopping down your lens will reduce purple fringing, often significantly. Not much else you can do about it other than avoiding those situations.


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John ­ Sheehy
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Jul 15, 2010 20:47 |  #12

canonloader wrote in post #10544183 (external link)
Purple fringing is mostly caused by high contrast situations, like these back lit frames. It's not all from cheap glass either. The Canon 40D was quite famous for giving purple fringe images in the right situations, even with L glass.

Any purple fringing that varies with camera model is probably out-of-focus IR light, as IR sensitivity varies from camera to camera.




  
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