Quick Answer: What STM Lens Means?

What is the difference between EF and EF S?

Canon EF lenses are designed to work with full frame and APS-C DSLRs from Canon.

Canon EF-S lenses have a smaller image circle that is only big enough to cover the smaller sensor found on Canon APS-C cameras.

Because EF lenses have a larger image circle, they will cover full frame sensors and APS-C sensors..

What does EF stand for Canon?

Electro-FocusThe EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras. EF stands for “Electro-Focus”: automatic focusing on EF lenses is handled by a dedicated electric motor built into the lens.

Is Canon a lense?

The lens is optically stabilized – it features Canon’s Image Stabilizer technology (IS). This is also the second version of such a lens with a stabilizer (II). Autofocus is driven by Canon’s best motor. Full-time manual focus is available, while automatic focusing promises to be very snappy and quiet (USM).

Is 18 55mm better than 18 135mm?

The 18-55 is worse than the 18-135 wide open at 18mm, but there’s not much difference between all three at 55mm. By 135mm the 55-250mm is significantly better than the 18-135mm in terms of C.A.

What does EF M mean?

The Canon EF-M lens mount, introduced in 2012, is a derivative of the Canon EF lens mount designed for use with the Canon EOS M mirrorless interchangeable-lens camera. The EF-M lens mount is one of Canon’s two new systems for mirrorless cameras, the other being the RF mount.

IS USM a lens?

If you notice your Canon digital SLR camera lens has the letters USM written on the side, it means the lens has a small motor built into the body. Hence, USM is short for Ultra Sonic Motor. … While these cheaper versions are quieter, they don’t however focus as quickly as a true ring ultrasonic lens.

What is the difference between EF and AF lenses?

EF stands for Electro-Focus and is a proprietary lens-mounting technology, whereas AF simply stands for Auto-Focus.

Is Canon 18 135 Lens any good?

The EF-S 18-135mm f/3.5-5.6 IS USM Lens is attractive on many fronts, including its wide (7.5x) focal length range, its relatively small size and light weight, its fast, smooth and accurate autofocusing, its great functionality including image stabilization and its modest price.

What does the L stand for on Canon lenses?

Low DispersionSome say L stands for “Low Dispersion” – achieved by the UD lens elements found in these lenses. But, the true answer is probably the one in Canon’s Lens Work III Book – “L” is for “Luxury”. … Look for the identifying L-lens red stripe around the end of the photographers’ camera lenses.

What is a 17 40mm lens good for?

The 17-40mm focal length range is great for group pictures, environmental portraits and full body pictures. Stand back and make a person part of a wide landscape shot. If tighter portraits are your interest, look for a lens that gives you at least an 85mm – 135mm equivalent focal length.

What is a 18 135mm lens good for?

canon 18-135mm lens for portraits Whether it’s a few candid snapshots or a posed portrait, like this high school senior, the 18 to 135mm zoom range gives you the flexibility to shoot a wide or a narrow angle of view. You can shoot larger groups, full length poses on individuals, or zoom in close for a headshot.

Is a 18 55mm lens good?

Getting the Best out of your Kit Lens The 18mm is a moderate wide-angle that is great for landscapes, architecture and environmental portraiture. The 55mm end is a short telephoto lens ideal for compressing perspective and taking portraits or closing in on details.

What does the IS stand for in Canon lenses?

Image StabilizerIS stands for Image Stabilizer. A lens with IS in its title has some form of image stabilisation built into it. Canon lenses do not offer image stabilisation for images as standard in their bodies – although they are starting to offer digital image stabilisation for video – so this is a desirable feature.

What is difference between STM and USM lens?

USM stands for Ultrasonic Motor, while STM stands for Stepper Motor. … By comparison, the STM lenses really are almost silent, as they were built with video in mind — rodents need not apply. Their focus speed, while a tiny bit slower, is also better suited for video as it’s smoother and less “jarring.”

Are STM lenses worth it?

The STM version is better because it has faster, smoother AF, and the front element does not rotate. The optics are also improved which gives you better image quality. The STM focus ring is active during Auto Focus and you can small manual adjustments to focus. … The STM version also has a much nicer EW-63C lens hood.

Which is better STM or USM?

USM lenses are more professional-grade and better for shooting photos, while STM lenses are geared more towards amateurs and better for video. … Their focus speed, while a tiny bit slower, is also better suited for video as it is smoother and less “jarring”.

What does USM stand for Canon?

Ultrasonic MotorUSM (Ultrasonic Motor) is the most widely used AF motor type in the Canon EF lens range to date. Common to all USM motors is the fact that that they convert ultrasonic vibration energy into rotational force to move the lens.

Can I use EF lens on EF S?

The short answer to your question is yes, an EF lens can be used on a crop-sensor (EF-S) Canon camera. … Some of the EF-S lenses protrude into the body and so for full frame cameras that would cause the mirror to come into contact and get damaged, but even if they do not, they can’t be used.