Ay opticians on FiSO?

4 posts • Page 1 of 1

Zimmerman: FISO Jedi Knight; Posts: 30211; Joined: 13 Oct 2005, 18:42; Location: having a picnic at the Bear Mountain; FPL:

Post by Zimmerman » 18 Mar 2014, 11:20

If the size on some frames is described as

53-15-140
Or
55-15-140

What does the first figure signify?

Surprised: FISO Jedi Knight; Posts: 26528; Joined: 13 Oct 2005, 18:32; Location: Home; FS Record: TFFOSM MotW in 2008 and MotM in 2003. 78th overall in TFFO for 2002/3 and 2003/4; FPL:

Post by Surprised » 18 Mar 2014, 11:23

width of the lens

Knulpuk: Dumbledore; Posts: 8986; Joined: 05 Dec 2005, 13:22; Location: MTA (Mid Table Anonymity); FS Record: Ultra ultra consistent (see above); FPL: