I've edited this question and was trying to add an identification tag. As it turns out, we only have camera-identification and nothing else. As this tag only has 5 questions, I suggest we change it to
[equipment-identification] and use that as a tag for all identification questions.
As for the mentioned question, it asks to identify compatible cameras, but the real question asked is to identify the lens. While camera-identification might be a proper tag for this question due to the way it was asked, I think the suggested name change would be a good thing to do anyway, as not every identification question asks for a compatible camera.