Correct thumbnail aspect ratio

Hi guys,

I have just changed the thumbnails on a site from 200x120 to 300x180. I have deleted all thumnbail folders.

Now when I got to view a product I see a thumbnail which is 300x149 which is an incorrect aspect ratio and makes the images look stretched.

The main_image_thumb div has a height of 185px leaving a gap between the bottom of the actual image and the small_image_div.

www.vintageleathersofas.com/leather-sofa...ockley-4-seater-sofa

Any ideas on what I haven't set in order for the change to update properly?

Thanks

Ah, I think I may have realised what's going on, it seems to have taken my largest measurement and kept the original aspect ratio of one of the images, and then resized the other to suit.

I'm going to have a play at changing the image size and see if that fixes it.

OK so all the images are now definitely 1.5:1 aspect ratio (600x400) , all thumbnails were deleted, but they still show stretched. I'm out of ideas now.

Thanks Nicolas, good spot