jarrydbekker Posted June 9, 2004 Share Posted June 9, 2004 I heard once of perspective correction done in photoshop. Aparrently this gives a almost identical effect as a T/S Lens. Does anyone know how to do this? Thanx! Link to comment Share on other sites More sharing options...
bwcombs Posted June 9, 2004 Share Posted June 9, 2004 In Photoshop. Go to Edit > Transform > Perspective. You will have several handles to manipulate your image. Link to comment Share on other sites More sharing options...
bwcombs Posted June 9, 2004 Share Posted June 9, 2004 Here's a sample of Perspective edit in PS. Top is original, bottom image has been shifted in PS.<div></div> Link to comment Share on other sites More sharing options...
rosswordhouse.com Posted June 9, 2004 Share Posted June 9, 2004 I use photoshop all the time to correct my perspectives. The only downfall of this technique is the cropping of the image. Depending on the amount of correction, you might loose something vital. Shoot wider than you need so you won't cut of anything vital when you crop your fixed image. You can see the crop from the above image, it has lost about an eighth of an inch on both sides. Hope this helps Link to comment Share on other sites More sharing options...
mark_herring Posted June 9, 2004 Share Posted June 9, 2004 Another trick for emulating a shift lens is stitching. I have a number of pictures made by taking two or more shots--tilting the camera vertically between shots--and then stitching them in Panotools**. In the process of stitching, the perspective correction automatic. In this particular SW you have a lot of parameters that you can tweak--eg the reference point (the point where you eye would be looking straight on. The nice thing about Panotools is the unlimited ability to stitch both horizontally and vertically--with no need to control camera tilt. **I actually use PTAssembler, a GUI front end for Panotools developed by Max Lyons. He provides the whole package: www.tawbaware.com Link to comment Share on other sites More sharing options...
kirk_thompson Posted June 10, 2004 Share Posted June 10, 2004 You don't even have to do Edit>Transform>Perspective - just do a crop with Perspective checked. Link to comment Share on other sites More sharing options...
bobatkins Posted June 10, 2004 Share Posted June 10, 2004 You can emulate shift, but you can't emulate tilt. Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted June 10, 2004 Share Posted June 10, 2004 "perspective correction's" in photoshop warp and remap the the pixels; which can drop the sharpness in critical applications. Whith small corrections; the "loss" is usually not noticeable. Wih massive correcttions; the loss is noticeable.<BR><BR>With a view camera; the movements can be used to eliminate a lightpole from a building. Link to comment Share on other sites More sharing options...
jarrydbekker Posted June 10, 2004 Author Share Posted June 10, 2004 Thanx for all the help! This is a very useful tool! Link to comment Share on other sites More sharing options...
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