As monitor resolutions have become higher and higher, I'm starting to worry that my zoom images sizes are not large enough. I'm comfortable with my Shopping Cart size (100 x 100), Thumbnails (200 x 200) and More Information Page images (400 x 400). I'm worried that my Zoom size, which is 800 x 800, is not large enough.
Some quick "Googling" suggests a minimum of 1000-1200 per side. I was thinking about 1200 x 1200. However, this obviously means that the file size of the images will be larger and I worry that it will slow down my website.
Does anyone have any insight on the optimal zoom image size "these days"?
Thanks in advance!