Some terms I am not sure of...


Status
Not open for further replies.

makan007

New Member
Feb 17, 2002
223
0
0
Singapore
#1
Eg,

EF 28-200mm f/3.5-5.6 USM

What does USM mean?

EF 28-105mm f/3.5-4.5 II USM

What does II USM mean?

EF 17-35mm f/2.8L USM

Why the aperture no. contain a letter 'L' at the back?
 

ziploc

New Member
Jan 17, 2002
4,576
0
0
Snoopyland
#2
Hi Makan007,

See here for the explaination of USM (Ultrasonic Motor) and L lenses.

II simply means 2nd generation.

:)
 

makan007

New Member
Feb 17, 2002
223
0
0
Singapore
#3
Originally posted by ziploc
Hi Makan007,

See here for the explaination of USM (Ultrasonic Motor) and L lenses.

II simply means 2nd generation.

:)
Wow, thanks a million. :cool:
 

Status
Not open for further replies.
Top Bottom