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Pete
Pete, Electronic Engineer
Category: Camera and Video
Satisfied Customers: 17691
Experience:  Over 16 years of experience installing and repairing electronics.
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THE 18-55MM LENS THAT CAME WITH MY CAMERA (EOS T2i) is

Customer Question

THE 18-55MM LENS THAT CAME WITH MY CAMERA (EOS T2i) is malfunctioning and I need to replace it. What is the difference between the EF-S 18-55 IS II AND THE EF-S IS STM?
JA: What's the exact make and model of the camera? And can you guesstimate how old it is?
Customer: i BOUGHT IT APPROXIMATELY 4 YEARS AGO AND IT'S BEEN WORKING FINE UNTIL FRIDAY WHENI NOTICED IT WOULD NO LONGER FOCUS. MY ZOOM LENS WORKS FINE SO I KNOW IT'S THE LENS AND NOT THE CAMERA. I CHECKED ON LINE AND THIS APPEARS TO BE A COMMON PROBLEM WITH CANON LENSES.
JA: What happened right before this popped up? What troubleshooting have you tried?
Customer: NOTHING HAPPENED TO IT. I TAKE GOOD CARE OF MY CAMERA AND I ORIGINALLY THOUGHT THE BATTERY WAS JUST WEAK. UNFORTUNATELY, CHARGING THE BATTERY DID NOT ELIMINATE THE PROBLEM. THE ONLINE ADVISERS SEEM TO INDICATE IT IS CHEAPER TO REPLACE THE LENS THAN IT IS TO TGRY AND HAVE IT REPAIRED AND i AGREE. NO ONE FIXES CAMERA ANYMORE.
JA: Anything else you want the camera expert to know before I connect you?
Customer: NO. I JUST WANT TO KNOW WHAT IS THE PROPER REPLACEMENT (18-55MM) LENS FOR THE T2i. IT IS AN OLDER MODEL AND I DON'T WANT TO ORDER SOMETHING AND FIND OUT THAT IT IS IMCOMPATIBLE WITH THIS CAMERA. IT APPEARS THAT I WILL HAVE ORDER ONE ON-LINE WHICH MEANS I CAN'T TRY IT ON THE CAMERA BODY BEFORE I PURCHASE IT. NO MERCHANT AROUND HERE SELLS REPLACEMENT LENSES.
Submitted: 4 months ago.
Category: Camera and Video
Expert:  Pete replied 4 months ago.

Hi, I'm Pete. Welcome to JustAnswer! I'm reviewing your question now, and will post back with your reply ASAP.

Expert:  Pete replied 4 months ago.

The STM lens has smooth, quiet STM (stepping-motor technology) for focusing when shooting movies.

Apart from that, the two lenses are very similar.

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