Tim,
I’m guessing you’re referring to the image-download button, which used to open / download the original full-resolution image file. You can still do this.
If you right-click the image and select “Open image” (the exact wording will vary between browsers), your browser will open the full-resolution image.
Alternatively, underneath the image, in the section “Files associated with this observation”, you can download the original image file onto your computer for viewing in your favourite graphics package.
Best wishes,
Dominic