The best size for the Steemit cover image without cropping the original photo so much. I had to go through quite a lot of images to find the sweet spot.
My current cover image size is 2561x223, you can go by inches which is 10.67 x 0.93 or 11:1 ratio. You can adjust your images via editing software. You can play around with the size with this base ranges.
In terms of speed and quality this is the best size for the cover image. If you go any higher it will load very slow, risking low quality user experience. Any lower and the image will be pixelated.
If you don't want your image looking stretched like Mr. Fantastic then you can choose a part of your image and crop it. Go by the 11:1 ratio, mind you I just rounded off this number from 10.65:0.95, don't want it too complicated. These numbers i'm giving you are your base numbers to use. Everyone have different size monitors, images, preference, etc...
