"When did razor sharp images..... become popular?"
A long time ago. Plenty of photographers shot Kodachrome 25 which was a very sharp film. Most of us tried to use the slowest film possible to minimize the grain which, in film, cannot be totally eradicated. Some situations call for faster films and the grain starts to show. And grain, compared to digital images with no noise can give the impression of a softer image.
But the biggest progress has been made, imho, in the printing industry. Quality art books were the realm of a few publishing companies. Most of what was available as art books was not very good. Digital has changed that to a certain degree.
But, as someone suggested, you need to look at actual prints to see actual sharpness. One of the things that has surprised me the most here on TPF is how few people actually seem to go to museums and galleries. Film photography was obvioulsy not meant to be viewed on a computer monitor and, to be honest, even in the age of digital I think it still is not. Think of the number of people complaining that their images got soft after going through their images hosting sites. Thinks also of the number of cheap monitors out there.
AF and the newfangled multi-point focusing systems certainly have nothing to do with the sharpness. If you couldn't focus your camera in the age of manual, you would not have gotten very far as a photog.
DOF has nothing to do with sharpness either. The area of the image that is in focus is either in focus or not. And the comparison to vinyl lovers is not very good. Music lovers love music whether it is digital or analog. People with an ear can make the difference between digital and analog. There are snobs everywhere so they are present in the music world and they should just be ignored. But to say that digital music lovers love the quality is a joke: MP3s are about the same quality as my cassettes and that is what most people listen to
To get back to sharpness, there has been quite a bit of worrying in the TV and movie world about HD because of the extreme sharpness. And a recent self portrait post by O|||||||O reminded me of this when someone mentioned his pores. Do I really want to see his pores? I remember an article about the porn industry being quite worried about all this sharpness...
I totally believe that the sharpness thing is an amateur problem. As mentioned by others here, it is one thing that is easy to grasp so we want sharpness when we have no or little idea of the rest of photography. I am with The_Traveler on Ansel Adams. Perfectly exposed, perfectly sharp, perfectly boring. I can look at one or two of his images but I would never take the time to visit a show. Someone once offered me a couple of his prints as payment for a job and, to his utter amazement, I said no.
ottor mention of horizon is the exact same, imo. I had never heard so many people totally obsessed with horizon lines until I joined this place. I am no fan of tilted photos for no reasonbut a slightly off horizon line, I would not even notice most of the time.
Another that has been mentioned is that they were time when softness was the desired thing. And, yes icassell, I used the vaseline trick myself a few times. And I'm sorry I also find Adams boring. To each his own.
Very interesting thread.