I would recommend shooting this dome on FX at f/14 with a fisheye lens. If you can. If you have enough light etc.
If you have to open up, say to f/10, you will loose corner sharpness. If you are shooting a subject in open water - with nothing but blue in the corners of the frame - then this is not an issue. But in other situations you should be aware of the compromise to image quality - and consider this in your composition.