Originally posted by Silverkarn Well, i'm seeing quite a few lenses with this specific shape being sold specifically as aspherical lenses, some of them even have the word "aspherical" on the side of the lens.
Sorry for being a beginner. And i'm sorry for the photo, i just did a google search and picked a lens that looked similar.
Aspherical lens elements are relatively new in cameras. They date to the '70s. They were initially
HAND ground and polished. This added substantially to the cost of the lens. It was extraordinary at the time. Canon's famous 55mm F1.2 AL lens was the first. It is still an incredible lens. Then the term "Aspherical" on a lens was something special.
They are much easier to produce now. Perhaps the moniker "Aspherical" is still used to infer something special. Maybe something like the word "Color" on the TV ads in the newspaper. Now every TV at the electronics store is "Color". You have not been able to buy a large B&W TV for years.
Read this article to learn more:
canon.com/camera-museum/camera/lens/fd/data/50-85/fd_55_12_al.html