2 suggestions: search box camera image preview & random search with known Camera A

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[thumbnail preview after filled search box]
after filling out a search box, it would be great to have a thumbnail of the camera in the search boxes as a visual cue to the user -- that is, they may have guessed the name of the camera but have a better idea of the camera they want to compare visually.

[improved random search with one camera chosen]
a user might want to do a random search based on one filled out search box-- not a completely random search box *if* they already had one (e.g., Camera A) filled out.