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11 questions linked to/from STM vs Non STM lenses for still photography?
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49 votes
3 answers
396k views

What does STM mean on a Canon lens?

The Canon EF 40mm f/2.8 has a designation of STM on the lens. What does this mean? What are the advantages of having it and does it replace an older technology? We have a terminology thread that ...
dpollitt's user avatar
dpollitt
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34 votes
3 answers
195k views

Why do higher end lenses use USM instead of STM?

Canon has a newer type of motor, called STM, which is introduced in lenses like 18-135 f/3.5-5.6 IS STM, 40 f/2.8 STM and so on. STM also provides quick, silent and smooth focusing. Even the focusing ...
rcs's user avatar
rcs
  • 1,095
11 votes
2 answers
43k views

What is the difference between the Canon 55-250 IS II and 55-250 IS STM lenses?

I am a beginner in DSLR, and would like to purchase another lens other than the kit lens (18-55mm STM) that came with my Rebel T5i/D700. After much googling, and reading of blogs, I have decided to ...
kaushal's user avatar
kaushal
  • 121
2 votes
3 answers
2k views

Is the standard Canon 18-55 lens the same as 5 years ago?

I am planning to buy a new Canon camera body, and am wondering whether to just get the body, or to get the standard 18-55mm lens as well. I already have such a lens, which I think came with the EOS ...
Neil Strickland's user avatar
Neil Strickland
  • 123
1 vote
6 answers
3k views

What would be a better lens, 40 or 50mm prime, for walk around? [closed]

I have a Canon EOS Rebel T5i/700D body, an EF-S 18-55 wide angle lens, a 70-300mm telephoto lens, and the kit lens that came with the body. I am still building my lens collection and am looking for ...
Kyle Sponable's user avatar
Kyle Sponable
  • 139
1 vote
1 answer
14k views

What is the difference between STM and USM in a lens? [duplicate]

What is the difference between STM and USM in a lens? What's the major difference? Is this only for a Canon user, or Nikon, or else DSLR also having same types lenses? What should I choose for day-...
Parth's user avatar
Parth
  • 151
0 votes
1 answer
1k views

Does a Ring-Ultrasonic EF-S lens require power to manually focus? (using with adapter)

Would the manual-focus-ring of a ring-ultrasonic EF-S lens (in particular the 17-55mm f/2.8 IS USM lens) focus even when the electronics are not working? Or would it require power to allow manual ...
FotisK's user avatar
FotisK
  • 343
2 votes
2 answers
2k views

Recommendation on Canon 18-55mm IS STM / III

Recently I've decided to buy a new DSLR body (Canon 200D), and now I have to decide what lens to pair this with. For €18 on top of the body-only price I can get a Canon 18-55mm III lens, and for €94 I ...
sFyX67v7Ia1XDGFU's user avatar
sFyX67v7Ia1XDGFU
  • 31
2 votes
1 answer
315 views

Is there an IQ gain in going from Canon 18-135 IS to 18-135 STM lens?

Is there someone out there with any experience with the two lenses?
S. Kumar's user avatar
S. Kumar
  • 21
0 votes
1 answer
236 views

Will a Canon 200D's STM lens make the same sound on a Canon 3000D/1500D?

What I understand is that STM is a part of lens, not camera. Canon 3000D or 1500D makes noise while focusing. So if we buy a Canon EF-S STM lens, which is used on 200D, will it be compatible and ...
Vikas's user avatar
Vikas
  • 424
1 vote
1 answer
396 views

Canon T3i Will Only Auto-Focus

I've been scouring the internet (and the manual) trying to find an answer to my problem but the only results I can find are about the AF not working on the T3i, not the other way around. For some ...
Antillies's user avatar
Antillies
  • 13