The Canon EF-S 17-85mm f/4-5.6 IS USM Lens combines a very useful zoom range with image stabilization in a light and well-performing package. … Yes, even though the lens is designed for 1.6x FOVCF digital bodies, the framing is still equivalent to a longer focal length lens on a full frame body.
Thereof, WHAT IS USM lense?
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. What this means is that your lens will autofocus faster than standard models.
Accordingly, What is the L in Canon lenses?
What is the Canon “L” Lens Series? Good question – and many answers exist, but it is Canon’s professional line (though used extensively by non-professionals) of EOS EF autofocus 35mm SLR and DSLR still camera lenses. Some say L stands for “Low Dispersion” – achieved by the UD lens elements found in these lenses.
Why do some Canon lenses have a red ring? If the lens has a red line, the lens is part of Canon’s L series. The L stands for luxury and these are the crème de la crème of Canon lenses. L series lenses feature top of the line optics and build quality making the most coveted and expensive of the Canon lenses.
Also know Is STM better than USM?
USM vs STM
USM lenses are much faster than STM lenses, which makes USM a better choice for action photographers, street photographers, and wildlife photographers. USM lenses also offer smoother manual focusing, given the mechanical connection between the focus ring and the focusing mechanism.
What does RF stand for Canon? In truth, while the EOS R was being developed, it was tagged R for Revert or Reborn, but when it went public and in production, Canon adapted Re-Imagined for the meaning of the R. So, EOS R is Electro-Optical System Re-Imagined and RF is Re-Imagined Focus.
What does DS stand for on Canon lenses?
2 L USM DS LENS. Another, more specialized version of the RF 85mm F1. 2 L USM will be announced later in 2019. This is the “DS” version — which stands for Defocus Smoothing.
What does do stand for in Canon lenses?
DO – diffractive optics (e.g. Canon EF 400mm f/4 DO IS II USM Lens) DO stands for Diffractive Optics and shows that a lens uses special elements to help make them more compact without compromising on quality. Good to know: These are usually differentiated by a green ring around the front of the lens.
What does Canon EFS stand for?
EF-S stands for Electro-focus short back focus. This Canon lens mount was launched alongside the EOS 300D (EOS digital Rebel) camera in 2003. EF-S lenses have an image circle which just covers the sensor of APS-C cameras, meaning that the image circle is smaller in size than in EF lenses.
What is Canon USM lens?
USM. USM (Ultrasonic Motor) is the most widely used AF motor type in the Canon EF lens range to date. … This is the currently the fastest focusing motor in the Canon range, yet it allows you to still manually fine-tune focus without having to switch off autofocus completely.
Are Canon L lenses waterproof?
Most L lenses are weather sealed, meaning they can stand to get reasonably wet before requiring a waterproof cover. … Most popular L lenses: Canon 70-200 f/2.8 L IS II | Canon 24-70 f/2.8 L II | Canon 100-400 f/4-5.6 L IS II | Canon 50mm f/1.2 | 35mm f/1.4 L.
What is the difference between RF and EF lenses?
RF mount is the new mount from Canon that is used on their lineup of full frame mirrorless cameras. EF mount is the older mount used by Canon in their Film SLR and Digital DSLR cameras (cameras with mirrors in them).
What is the difference between EF and EFS lenses?
The primary difference between Canon EF and EF-S lenses is that EF lenses are designed to work with both full-frame and APS-C DSLR bodies, while the EF-S lens line is designed to work only with APS-C bodies.
Why are USM lenses more expensive?
With Canon lenses, the more expensive telephoto zoom includes the letters “L,” “IS,” and “USM,” while the less expensive lens doesn’t. … “USM” signifies the lens has an UltraSonic Motor for autofocus. That means AF is faster and quieter then the less expensive lens, which uses a conventional motor.
Is RF better than EF?
RF mount lenses employ a 12-pin connection between the camera and lens — for comparison, the EF-mount uses 8 pins. … Faster data transfer, which means lightning-fast autofocus, enhanced image stabilisation thanks to better communication between the camera and lens, and also provides general optimisation of image quality.
What is the difference between EF and RF lenses?
RF mount is the new mount from Canon that is used on their lineup of full frame mirrorless cameras. EF mount is the older mount used by Canon in their Film SLR and Digital DSLR cameras (cameras with mirrors in them).
What is the difference between AF and EF 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.
What does SSC mean lens?
Nicknamed ‘chrome nose’ lenses, these used two new proprietary lens coatings, designated “S.C.” (Spectra Coating) and “S.S.C.” (Super Spectra Coating), but neither coating was signified on the front of the lens. These were both multi-coatings, but indicated two quality grades.
What does DC mean on Canon?
The acronym DC stands for Direct Connect. Some of Canon’s older or more budget-friendly lenses use a geared DC motor. Unlike USM or Micro USM lenses, lenses with a DC motor do not offer Canon’s full-time manual focusing feature. DC motors are much slower to focus than USM, and they are also much noisier.
What does II mean on Canon lens?
For example, there are two Canon 24-70mm f/2.8L lenses: the first one is the Canon EF 24-70mm f/2.8L USM, and the other one is Canon EF 24-70mm f/2.8L II USM. The only difference in the name of the lenses is the “II” designation of the second lens, which means it is the newer, updated version.
WHAT is STM on Canon lens?
STM stands for Stepper Motor.
In June 2012 Canon introduced a new lens motor design to address the issue of lens noise when shooting movies with an EOS DSLR camera. Called a Stepper Motor, it converts digital pulses into mechanical rotation. … They are also simple to manufacture, making them an affordable motor option.
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. The longer answer is that EF-S lenses are designed for crop-sensor lenses, the ‘s’ denotes a smaller image circle, but it’s otherwise a compatible mount.
Are EF-S lenses good?
As a prime, it’s not as versatile as a zoom that covers a much broader variety of focal lengths. And although the build quality is good, the lens is constructed mostly of plastic including the mount. But for portraits on EF-S cameras, you won’t find a better value.
Are EF and EF-S lenses compatible?
The EF-S lens mount is a relatively new offering from Canon, so the selection of available lenses is limited compared to the full EF range, but it is backward compatible with the EF mount, and can therefore still accept all EF lenses.
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