Re: Photoshop title jump

Jeremy "The display allows you to toggle, but it warns you it's for display purposes only."

The message that Photoshop CS 2 gives you is "Pixel aspect ratio correction is for preview purposes only. Turn it off for maximum image quality."
I think this is there just to warn you that you are not dealing with square pixels, and that there may be round off errors with some wierd aspect ratios in displaying an image or selecting pixels. The advantages IMHO greatly outweigh any possible disadvantages with not having to rescale images multiple times if you are round-tripping between Photoshop and FCP. The only area which I don't know whether it handles the non-square pixels correctly is in filters that use radii of effect, such as the Gaussian Blur: when applied to an anamorphic image, it should give an effect which is circular instead of oval-shaped. I don't know if it actually does or not.

For so many years of Photoshop, all pixels were square and now you can set them to an anamorphic ratio. When you have the pixel aspect ratio turned on, you can now get guaranteed circles using the Eliptical marquee tool in conjunction with the Shift key without later having to rescale. A pencil tools one pixel square looks rectangular onscreen, but is actually one pixel wide and high. In essence, that's why Adobe made these presets available: to be used to edit frames for video.

If you look in the help for Photoshop CS 2, it has the following information:
"To help you create images for video, Photoshop has a Pixel Aspect Ratio Correction viewing mode that displays your image at a specific aspect ratio. For more accurate previews, Photoshop also has a Video Preview command that lets you immediately preview your document on a display device, such as a video monitor. To use this feature, you must have the device connected to your computer via FireWire. See also 'To preview your document on a video monitor'."

Bill Lee