photography filter

[Greg]

Hi
I was hoping you might be able to help. I used to have a plug-in for Adobe Photoshop/Corel that allowed me to work on images as if I was in a photo lab, or as if my camera was still in my hands. You could add filters to the lens (retroactively), change the exposure, change the kind of negative film etc.. I can't remember what the programme was called, and I can't find anything similar anywhere.
Does it sound familiar to you or do you know of anything that would do the same jobs?
Thanks for your help