Linked Questions

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
  • 46.6k
8 votes
6 answers
6k views

What reduces blur from camera movement more: large aperture or image stabilisation?

In the reviews of lenses with image stabilisation systems there are quite often written the quality of its performance represented by the number of f-stops (2-4 f-stops). As far as I understand, it ...
BartoNaz's user avatar
  • 183
11 votes
2 answers
9k views

Is image stabilization a necessary feature for wide angle lenses?

I am considering buying a 24-70mm lens, and among third-party lens makers, Tamron makes a 24-70 f/2.8 with optical image stabilization (vibration control, in Tamron's terminology). Is it really ...
Niranjan's user avatar
  • 447
1 vote
2 answers
42k views

What advantages does the Canon EF-S 18-55mm III have over the IS II version?

I was wondering if the Canon EF-S 18-55mm III lens had any advantages above the EF-S 18-55mm IS II, which has image stabilizing. The III seems to be a newer version, but hasn't got stabilizing. Will ...
Creator13's user avatar
  • 157
0 votes
3 answers
28k views

What are the advantages and disdvantages of the Canon 18-55 IS MKII vs IS STM kit lenses?

I'm trying to figure out the difference between the IS MKII lens and the IS STM lens. Specifically, I am looking at the Canon EF-S 18-55mm f/3.5-5.6 lens. On that Amazon page, there are three options;...
Nik's user avatar
  • 103
3 votes
3 answers
12k views

STM vs Non STM lenses for still photography?

If I am looking for a lens for still photography , then does an STM lens have a benefit over non-STM lenses?
Shubham Rohini's user avatar
5 votes
2 answers
1k views

Why is the battery required to manually focus through the viewfinder?

Is it normal that I can't manual focus any of my lenses on my 5D MK iii without having a battery inserted? I can focus on an object, and while looking through the view finder, remove the battery and ...
Vian Esterhuizen's user avatar
1 vote
2 answers
461 views

What is more important, f-stop or IS [duplicate]

What is more important, f-stop or IS. There is almost no price difference between the 70-200 f2.8 without IS and the f4 with IS
user19054's user avatar
0 votes
4 answers
572 views

What's the difference between using an Image Stabilization and not using it?

So, I want to make decision about buying a telephoto lens, the Canon EF-S 55-250mm f/4-5.6 IS STM and Canon EF 75-300mm f/4-5.6 III USM. Which annoys me is the IS function, my friends asked me "what ...
Reinaldy Rafli's user avatar
1 vote
1 answer
312 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