correcting stretched image by wide angle lens

You can reshape with Photoshop's liquify tool- it's not just for giving your friends elf ears- but this requires a great deal of skill and time. IOW not worth it.

Line bending is just a characteristic of lenses that wide- and many people use them to achieve that effect. It becomes a problem when one uses them to accommodate smaller APS-C sensors: if one goes wide enough to get the compositon one needs, it often results in unwanted distortion.

You might consider trading that lens off for an aspherical prime like the Sigma 14mm 2.8 (the Canon version is like $1500) which will lessen but not eliminate this effect.

DLS

Not to my knowledge, but with ubiquity of APS-C sensors someone could make a lot of $$ by writing it if it's even possible.

DLS

Yes but with a full frame sensor the camera to subject distance is about the same at 24mm as it is at 16mm on a APS-C sensor so you can get the shot in a tighter space with less distortion. That's what I meant.

People always say that with an APS-C sensor a 50mm is equivalent to an 85mm, a 20mm is equivalent to a 35mm etc. What they overlook is that the 50mm retains the characteristics of a 50mm, and a 20mm retains the characteristics of a 20mm. IOW a 20mm is not a "normal" lens and a 50mm is not a telephoto lens.

One cool thing about APS-C sensors and wide lenses is that the wide look can be achieved w/o getting as close to the subject. I shoot wide because I like that look.


DLS

Try to keep women off the edge of the picture. Most women don't like being distorted, but most men don't care.

Message was edited by: DLScreative

I know exactly what you are looking for. There was a Photoshop plug-in called "squeeze" by the well respected The Imaging Factory, which closed down in 2007. However you can still download it and get a free license key by the look of it.

It does exactly what you want, which is progressively squeezing the edges so that people at the edge of a group taken with a wide angle lens look natural. The centre is unaffected. The conventional lens correction programs do not do this.

There is no UB version, so it is necessary to re launch Photoshop in Rosetta.

I have been hunting high and low for a replacement, so if you find one for Aperture or Photoshop please post here. I have mainly been searching for a Photoshop plugin so maybe there is an Aperture plugin.

I think this is a real opportunity for a developer.

Sorry not to be more help.... I am posting in the hope that someone may come up with something.

Message was edited by: Mike Boreham

Message was edited by: Mike Boreham

I have reviewed my previous search and remembered that DXOptics Pro has a Volume Anamorphosis Correction tool, which is correct technical term.

It is expensive and I couldn't get the trial to work, but that was a while ago so maybe I'll look again.