When I was in high school, I had some Azo paper in 2x3(ish) format. At the time, I didn't know why it was so slow it took minutes to expose under an enlarger...
Yep, I know that now. Back in 1974, I didn't -- just got the paper at a yard sale along with some other photo stuff, and tried to use it. Plenty of time for dodging and burning, anyway...
When I was in high school, I had some Azo paper in 2x3(ish) format. At the time, I didn't know why it was so slow it took minutes to expose under an enlarger...