I have a 24mm 2.8 and the results are far behind the 35mm 2.5E.
I have also took pictures of my 14 years old boy but without daring being so close (very nice result)because I like to have room for the environment on the picture (what the 35mm allows).
I own a “FM2n” too and it is like a “Leica M” for a price more reasonable.I used a “M2” in the past with a 35 type 4 “summicron” wich allows me to see what it was to use one of the best lens of the world but now I found the “Nikon” more easy to use and didn’t want to buy a “M6”.
Cordialement.
Christophe.
tim dobbs photography 
I have a 24mm 2.8 and the results are far behind the 35mm 2.5E.
I have also took pictures of my 14 years old boy but without daring being so close (very nice result)because I like to have room for the environment on the picture (what the 35mm allows).
I own a “FM2n” too and it is like a “Leica M” for a price more reasonable.I used a “M2” in the past with a 35 type 4 “summicron” wich allows me to see what it was to use one of the best lens of the world but now I found the “Nikon” more easy to use and didn’t want to buy a “M6”.
Cordialement.
Christophe.