Hi, not sure of the correct terminology here. Anyway I have a image 9280 x 5220 and I want to pan and zoom into a area until it is umm 100 percent, so it is as sharp as the original image, not before or after. If so can this be done in Vegas pro 13? It is impossible to do it by guess.
Imported images are processed with its source image size by the Pan/Crop tool of Vegas Pro (no matter which version of Vegas Pro). So if you use an image size of 9280 x 5220, this is the size Pan/Crop uses.
The output from Vegas Pro is limited in two ways: The max. preview resolution is set by the project properties. So if you select 4096 x 4096 (which I think is the max of VP13 project settings) your input image will be processed to this preview size after the Pan/Crop processing. The max render size depends on the max. size the encoders allow. Again in VP13 it won't get higher than 4k (or maybe even 2k, can't remember for VP13).
So you can zoom into your hi-res image until the cropped area is below the output frame size before the quality drops.
I usually cheat ... I resize the image first in Photoshop Elements to match the output frame size. That way there is no guessing. Since most images require some cropping or colour correction anyway, I find it easier to do it all in the image editor first.