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Foto Fair Post your photos for friendly, non-critical feedback. This is the place to show pictures if you aren't yet ready for full-blooded critique, or simply want to share an interesting picture with other e-group visitors.

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  #1  
Old 7th October 2014
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Kingfisher

Eyes bigger than her belly?


Kingfisher swallowing fish VP by Tim J Preston, on Flickr

The line bokeh is starting to annoy me now it's been mentioned.
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Old 7th October 2014
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Re: Kingfisher

Very nicely timed. Did you get any before and after shots?

Not seen that effect on my bigma, but don't let a few odd artifacts take anything from the pleasure of seeing and recording such a wonderful moment.

Nice shot.
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Old 7th October 2014
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Re: Kingfisher

Having owned/used a wide variety of fast telephotos I've got to say the line bokeh isn't that bad, possibly because it a slower lens with a smaller front objective diameter. It varies with distance to background and the pattern of the background.
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Old 7th October 2014
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Re: Kingfisher

I see what you mean about the bokeh but it takes nothing away from the subject, which is excellent.
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Old 8th October 2014
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Re: Kingfisher

Excellent shot, I too owned a Bigma. Can't recall this effect.
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Old 8th October 2014
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Re: Kingfisher

Never seen this with mine do the line go the same direction in landscape and portrait shots?
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Old 8th October 2014
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Re: Kingfisher

Quote:
Originally Posted by art frames View Post
Very nicely timed. Did you get any before and after shots?

Not seen that effect on my bigma, but don't let a few odd artifacts take anything from the pleasure of seeing and recording such a wonderful moment.

Nice shot.

Kingfisher 25.09.2014 VP
by Tim J Preston, on Flickr


Kingfisher 1 25.09.2014 VP
by Tim J Preston, on Flickr

I am not 100% sure if it the bokeh is caused by the lens or post processing.
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Re: Kingfisher

Does the Bigma have a filter have you tried the lens without it?
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Old 8th October 2014
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Re: Kingfisher

I am jealous Tim, lovely shots.
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Re: Kingfisher

Quote:
Originally Posted by timmypreston View Post
I am not 100% sure if it the bokeh is caused by the lens or post processing.
Do you shoot with raw and jpeg. It would show you if there is a difference. And how much cropping and squeezing for the Internet did you do? That could be a factor.

But you can spend too much energy looking for problems - I'd relax and enjoy the wildlife - and just take more pictures. thank you for sharing them with us.
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Old 9th October 2014
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Re: Kingfisher

I think there are two things contributing to it.

One is sharpening before running NR and the second is I am cropping the image too much. Here's a picture with NR run prior to sharpening and not cropped as heavily. The lines are barely noticeable.


Kingfisher by Tim J Preston, on Flickr
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Old 10th October 2014
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Re: Kingfisher

Quote:
Originally Posted by David M View Post
Having owned/used a wide variety of fast telephotos I've got to say the line bokeh isn't that bad, possibly because it a slower lens with a smaller front objective diameter. It varies with distance to background and the pattern of the background.
Hi there David!

Since it was mentioned in this thread I have now noticed similar bokeh from my 70-200mm f2.8 sigma as well - it must be something to do with sigma telephoto lenses as I haven't seen it on any other lenses.

Cheers,

Ralph.
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Old 10th October 2014
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Re: Kingfisher

Nice images but can see what you mean about the bokeh
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Old 10th October 2014
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Re: Kingfisher

Ralph, I've seen it from a range of telephotos, it's not just a Sigma problem. I've got my theories about why it happens but have never bothered testing them.
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