Correcting distortion on Sigma 10-20mm

[toto8462]

Hi there,

I have recently purchased both a Sigma 10-20mm and PS CS4, and wondered how you would go about fixing the distortion you get at the 10mm end of the Sigma 10-20.

The most obvious way to me is to go to:

Filter >>> Distort >>> Lens Correction - Remove Distortion (using slider)

I'm always told there is more than one way to skin a cat in PS, so are there other, better ways to do this? How can I minimise loss of IQ in attempting to remove distortion?

Thanks.

 

[simonkit]

Hi,

Unfortunately the distortion at 10mm on the sigma is very difficult to correct sometimes...some really like the "effect" but I'm not too keen.

I tend to stick to 12mm where distortion is very minimal, I then use a great PS plug-in called "PTLENS", costs very little and works a treat !!

http://epaperpress.com/ptlens/

simon

 

[toto8462]

Hi,

Unfortunately the distortion at 10mm on the sigma is very difficult to correct sometimes...some really like the "effect" but I'm not too keen.

I tend to stick to 12mm where distortion is very minimal, I then use a great PS plug-in called "PTLENS", costs very little and works a treat !!

http://epaperpress.com/ptlens/

simon

Cool, well... I like the effect for fun, but it would be annoying on all landscapes!

 

[ranarama]

It depends what you mean by distortion. Are you talking about barrel/pin cushion or converging verticals? Can you post an example?

 

[Dunstan]

Try Transform, Distort. Work OK, but you'll need to crop to get rectangular frame - you should allow for this when taking the photo.