Okay some of the responses in here don't make sense. You can't just speak of images in 16x9 and 1x1 those are video lingo. What are the dimensions or resolutions that we should be look for in each of the instances. Saying High res doesn't make sense. So when we are using the 2 columns persay. There is the on screen and then zoom image. What are the two dimensions? Reason i'm asking is that yep it is a square but is it 500x500 and then zoom is that simply coded to width parameter? Or is it 1600x1600 and the 2 column is cropping.
I guess my question might not be the specific resolutions, but letting us know how those are coded might help us in understanding what might be cropped and not. EG: the image response of make it a square that makes sense to have the hieght be the total and white on sides. But then if you have 3 column, the images are small and how will the zoom look.
I can go on and on, just asking and trying to save myself time as opposed to testing our every single sizing to see how they react. But if i have to do that just let me know. :-)