What does EF stand for Canon?

What does EF stand for Canon?

A lens mount is the standard or pattern that is used to connect the lens to the camera. Canon uses a standard lens mount called EF. EF lenses were introduced in 1987 for Canon SLR cameras, and EF stands for “Electro-Focus” because it has a built-in motor in the lens for automatic focusing.

What does STM mean?

When you see a Canon lens with STM in the name, it means that it features Canon's Stepper Motor technology. Canon introduced this motor design to be a quieter and smoother focus system that allows for near-silent focusing during video recording.

What is difference between EF and EFS lenses?

Put simply, Canon EF-S lenses are designed solely for use on Canon APS-C DSLRs. 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.

What does the i stand for on Canon cameras?

Just taken from wikipedia. Canon EOS(Electro-Optical System) is an autofocussingle-lens reflex camera (SLR) camera series produced byCanon Inc.. Introduced in 1987 with the Canon EOS 650, all EOS cameras used 35 mm film until October 1996 when the EOS IX was released using the new and short-lived APS (Advantix/IX) film …

What is the difference between EF and AF lenses?

Difference Between EF & AF Lenses. In looking for a new lens for your camera, you will keep coming across the terms "EF" and "AF" in the product descriptions. … EF stands for Electro-Focus and is a proprietary lens-mounting technology, whereas AF simply stands for Auto-Focus.

Is a 18 55mm lens good?

If you have a kit lens of typical focal length, 18-55mm, then treat it as an 18mm and 55mm lens in one. The 18mm is a moderate wide-angle that is great for landscapes, architecture and environmental portraiture.

What is a prime lens in photography?

In film and photography, a prime lens is a fixed focal length photographic lens (as opposed to a zoom lens), typically with a maximum aperture from f2.8 to f1.2.

What is the difference between STM lens and normal lens?

Lenses with built-in focus motor focus faster and more quietly than lenses without a focus motor which rely on the camera's body focus motor. With full-time manual focus, you can move the focus ring whilst it is in AF (autofocus) mode.

Can I use an EF lens on a rebel?

All models can be fitted with Canon EF lenses. Care must be taken not to attempt to fit an EF-S lens onto a film-based SLR. The EF-S range lenses were introduced alongside Canon's first digital SLR and cannot be used on non-digital cameras.

What is a STM camera lens?

STM stands for Stepper Motor and is a applied to a new range of Canon lenses which feature a new design of focus motors which, along with a new iris mechanism are designed to eliminate (auditory) noise during video recording.

Is II vs STM lens?

In general STM lenses have quieter and smoother focus than their non-STM counterparts, especially compared to USM lenses. … In the case of the EF-S 18-55mm f/3.5-5.6 IS II and the EF-S 18-55mm f/3.5-5.6 STM though, the STM is also slightly faster to focus than the older IS II.

What is System Canon?

Canon EOS (Electro-Optical System) is an autofocus single-lens reflex camera (SLR) and mirrorless camera series produced by Canon Inc. … At the heart of the system is the EF lens mount, which replaced the previous FD lens mount, which mainly supported only manual-focus lenses.

What is a Canon EFS 18 55mm lens used for?

Complementing the imaging capabilities is a four-stop-effective Image Stabilizer system that minimizes the appearance of camera shake for sharper handheld shooting.

Is the Canon 18 55mm lens wide angle?

The Canon EF-S 18–55mm lens f/3.5–5.6 is a Canon-produced wide-angle to mid telephoto zoom lens for digital single-lens reflex cameras with an EF-S lens mount. The field of view has a 35 mm equivalent focal length of 28.8–88mm, and it is a standard kit lens on Canon's consumer APS-C DSLRs.

Do EF lenses fit EFS?

1 Answer. 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.

Is the Canon 24 105 A good lens?

The 24-105 L has slightly less CA than the 24-70 L. Both are very good in this regard only showing CA in harsh situations at their widest focal lengths. … If your needs are for wider focal lengths and you are using a 1.6x FOVCF body, you should also consider the Canon EF-S 17-55mm f/2.8 IS USM Lens.

What is a 18 55mm IS STM lens?

Canon EF-S 18-55mm f/3.5-5.6 IS STM Zoom Lens. An affordable standard zoom lens suited to a variety of subjects. Enjoy smooth, near-silent focusing when shooting video, with STM motor technology and Movie Servo AF. A four-stop Image Stabilizer reduces camera shake. … 0.25m close focusing distance.

What are Canon DO lenses?

The DO lettering seen on some Canon lenses stands for Diffractive Optics. … They do this by bending the light much more with DO lens elements than they typically do with regular lenses. The result is a lens that is much smaller and lighter weight than its regularly designed counterpart would be.

What is a 75 300mm lens good for?

Compact and lightweight 4x telephoto zoom lens ideal for shooting sports, portraits, and wildlife. The front part of the zoom ring now sports a silver ring for a luxury touch. The optical system, construction, and exterior are the same as the EF 75-300mm f/4-5.6 III USM's.

Is the Canon 24 105 weather sealed?

Yes, blowing sand has to be the worst! You are lucky that Canon agreed to fix it for you. that the 24-105 is weather sealed. It extends for one thing and it is one of Canon's more lightly-built 'L' lenses.