How can I have different image size for a content type I have 3 type of products that I want to put their image in my site. I have define a content type for them. there is a field that I put the image of my products and I've use imagefield crop module to crop my images but the problem is I don't want any specific ratio for my pictures or at least I have 3 define ratio for my images(each for a product).
I would appreciate if you tell me how can I set the different image size for my product with just one content type?
TNX

Edit:
for example I have chosen the "Image with cropping" as a widget of my field in a content type and because in its option I should fill the blank of the "resolution of cropped image" I set 300x300 like this:



Then when I crop my product option it gave me this:
for 136x65



After Cropping 



or for 170x300



After



And I should decide whether my image is square size or rectangular ??
The Image Style Selector module allows you to select a predefined image style and apply it to the uploaded image. In this way when you create a node (or any other fieldable entity), upload an image, you can choose which image style to apply to that image.