Someone once wrote the following statement, or something close to it, in this discussion group:
"I just saw photos of ____________ Golf Course, and I have to say it looks like the sort of course that is total _______."
Therefore because your assertion only asks whether it is possible to render an opinion, the statement is defended, absolutely. This is only the type of response of a smart-alecky 11th grader though.
The more important issue raised in your question is whether one should be able to render an opinion of a golf course based only on photos or diagrams, such that anyone else should either care about the opinion or assign any objective validity to it.
To this I answer: of course. Life is full of ambiguity and we moreover base all kinds of impressions and opinions we have on less than complete information. We would be paralyzed into silence if we were not allowed to express ourselves in light of this reality.
I was not at the US Supreme Court hearing today. But I have at my disposal means to come to an opinion of what happened. Sources available to me are many and varied. I could listen or watch interpretive news reports; I could download and read a transcript; I could listen to the audio tape. If I wanted to be more thorough I could listen to the audio tape while reading the transcript, and so on.
At the end of this process I'd have an opinion I'd share with others. No doubt someone could come along and say, "yes but how can you have a valid opinion, you weren't actually at the hearing today in person?" but any reasonable person would be hard-pressed to not scoff at such a transparent reductio ad absurdum.
Opinions about golf courses based on photos or diagrams can certainly be given, as long as everyone realises their validity will always be open to scrutiny and should be subject to careful evaluation and assessment.
Take the following example to illustrate the absurdity of considering as more valid the opinions of someone who has seen a golf course over a person who has only studied it and come to their opinion based on writings, pictures, or diagrams. Ignorant golf tourist X wrangles a tee time at Royal County Down and plays 18 holes. "I hated the course," he says, "very monotonous holes with not much to say for themselves compared to the TPC in Florida I play most of my golf at." A second golfer has never played Royal County Down but has read a lot about it and seen many photographs. His impression is that it is probably one of the greatest golf courses in the world. He can give many reasons why it is great, and he will do so, if asked.
Would anyone argue that the opinion of the ignorant golf tourist has greater validity, in any objective sense, simply because he has been there?