So, when I had a Macbook Air a few years ago with non-retina display, post processed my images at 1200x1800px, 72dpi and uploaded them to online photo sites, the pics opened through the browser at 100%, and at the size I processed them so the sharpness was retained. They essentially looked like how they did in Adobe Photoshop.
However, when I got a Macbook Pro with retina display and post processed them with the same settings, I noticed that the images were now showing in the browsers as if they were zoomed. The sharpness that I attained in post was now muddied because it was as if the browser (both Chrome and Safari) zoomed the size of the photo. It worried me that my pics were displaying in a browser differently then what I expected in Photoshop.
Anybody else notice this?




