Hello fellow CSnappers,
I am looking for the answer to this question - what does the "f" in f/stop mean?
I have asked myself the same question before but I never bother to go and find out the answer (my procrastination).
Recently, my friend asked me the same question again and asked for my help. Apparently he refered to many photography books, searched many photography-related websites but failed to give him a definite answer.
The closest answer I found was foot-candles but I decide to post this thread to confirm if my answer is correct.
What do you guys think?