All Forum Comments
Comment by George Lazarette posted on X Rays at Airports at 05/06/2007 - 11:18
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Comment by George Lazarette posted on Another natural lightingshot(pic of the bunch so far for me) at 18/03/2007 - 23:07
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Comment by George Lazarette posted on Silver pebbles (img) at 18/03/2007 - 23:18
I don't think this is the normal CA.
I think it is Purple Fringing.
CAs normally show a purple area on one side and a green area on the other.
CAs can be quite easily corrected in Photoshop (Filter-lens correction), but PF cannot.
Try to correct the above in Photoshop. It will not work.
A satisfying explanation for PF is still needed. Various explanations float around.
Where's Matt? I'm not sure it's right that he feels he can have weekends off when we need him. This is a full-time job.
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Comment by George Lazarette posted on Horrible purple cast, not a new species of robin at 19/03/2007 - 10:52
So let's leave it to Matt!
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Comment by George Lazarette posted on Horrible purple cast, not a new species of robin at 18/03/2007 - 23:36
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Comment by George Lazarette posted on Horrible purple cast, not a new species of robin at 18/03/2007 - 12:52
It is called chromatic aberration.
http://en.wikipedia.org/wiki/Chromatic_aberration
Two ways to avoid it:
1 Don't shoot into the light.
2 Stop being a cheapskate, and buy proper lenses, with "SMC Pentax" printed on them.
Some image-editing programs will remove it.
Seriously, this is a lens fault, and better lenses will suffer less from it.
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Comment by George Lazarette posted on Horrible purple cast, not a new species of robin at 18/03/2007 - 12:50
I have only recently found out how to put photos on this site by joining another site; now I am too SCARED to show you my 'first attempts at Press Photography with the K10D' in case I get told off ( and they are only 500 pixels wide) so I put one on the ePHOTOzine site and I don't know how you make these 'link' things, so if you're interested go to ePHOTOzine and look in the Pentax Gallery for my Irish Dancers I took on Saturday for St Patrick's Day.
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Comment by George Lazarette posted on Photo Critiques at 20/03/2007 - 21:57
............Photos for technical issues are a different matter altogether and should certainly be allowed wherever they are relavent, though personally I would like to see an 800x600 size limit, having to scroll to read the text puts me off reading a thread.
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Comment by George Lazarette posted on Photo Critiques at 19/03/2007 - 10:58
I'd think 2 per day max with 800x600 max image size but if people want to develop their skills should we limit their posts :
How do you propose that people earn the right to post more George :
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Comment by George Lazarette posted on Photo Critiques at 18/03/2007 - 15:31
(No idea where Oshkosh is but I hope Putin isn't pointing more missiles there)
Oshkosh is definitely the wrong place to point any sort of missile.
It's in Wisconsin, USA. They have the world's largest airshow there every year. It runs for about 9 days toward the end of July. Google it: EAA Oshkosh.
And thanks for the tip.
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