Lenses Ultrasonicgreenspun.com : LUSENET : Canon EOS FAQ forum : One Thread |
I have a Canon EOS Rebel S with a EF 35-80mm lens,I was thinking of getting the 70-210 ultrasonic lens. Q:How good is the Ultrasonic lenses?
-- Trevor Lum (tllum@attcanada.ca), September 26, 2000
My answer refers to Ring USM motors and not MM USM (except the EF 50/1.4), and excluding those that uses Electronic FTM (The non IS super teles).Less energy consumption Faster AF Silent Full Time Manual
-- Alex Yap (hashigou@yahoo.com), September 27, 2000.