What do Canon lens letters mean?
I, II, III – Roman numerals in the lens name describe the lens’ generation. 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.
What DC DN mean?
The frame size on a lens tells you what kind of camera the lens was intended for. In SIGMA, DG denotes a lens designed for a Full Frame camera and DC tells you that the lens is for a Crop Sensor camera. And DN denotes mirrorless camera format.
What is the difference between Canon is lens and DC lens?
The IS stands for image stabilization. This allows you to take photos at slower shutter speeds without incurring motion blur. The IS version is older, but is considered better. The DC III version has been created to cater for people on a lower budget.
What does the III mean on a Canon lens?
Lenses marked III are newer than those marked II. These indications give the user a way to find a newer or older model of the same lens. For instance, the Canon EF 600mm F4 L IS III USM, III is the third version of the lens with better optics, tech, etc. than its previous versions.
How do you read a Canon lens?
Canon Lens Guide
- If a lens has a focal length of (or passes through) 30mm, it’s a wide-angle lens.
- If a lens has a focal length of (or passes through) 50mm, it’s a standard lens. (On its own, the human eye sees the equivalent of a 50mm lens.)
- If a lens has a focal length over 100mm, it’s a telephoto lens.
What are the different levels of Canon lenses?
There are five different types of lenses for Canon consumer interchangeable lens cameras, these include RF, RF-S, EF, EF-S and EF-M. When it comes to choosing your lens, you need to ensure that you are selecting a lens that will work with your camera.
What does Sigma EX DC mean?
The Sigma 30mm f/1.4 EX DC HSM is a wide-aperture photographic lens made by the Sigma Corporation, equipped with a Hyper Sonic Motor (abbreviated HSM, Sigma’s trade name for photo lens focusing technology using ultrasonic motor).
What is DC DN contemporary lens?
4 DC DN | Contemporary is the world’s first interchangeable lens for mirrorless Sony E-mount cameras in the APS-C format to offer a 24mm focal length (35mm equivalent) and F1. 4 brightness. The lens for Micro Four Thirds offers a 32mm focal length (35mm equivalent) with the same bright F1. 4 aperture.
What does STM and USM mean?
USM stands for Ultrasonic Motor, while STM stands for Stepper Motor. Both are autofocus motors built into different lenses you’ll find in Canon’s lineup.
What does USM stand for Canon?
Ultrasonic Motor
USM. USM (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.
What does F 2.8 lens mean?
What is the Aperture Scale?
| f/1.4 | f/2.0 | f/2.8 |
|---|---|---|
| Very large aperture | Large aperture | Large aperture |
| Lets in a huge amount of light | Half as much light | Half as much light |
| Very thin depth of field | Thin depth of field | Thin depth of field |
What does EF-S stand for Canon?
Electro-focus short back focus
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 do the lens numbers mean?
mm Numbers Mean Focal Length
You will see a number, a slash, and another number (# / #). The second number is the focal length. A lens stamped 1.8 / 55 means that the focal length is a fixed 55mm. Prime lenses have only one focal length, while zoom lenses have a range of focal lengths.
What are the 6 types of lenses?
6 Types of Camera Lenses & What to Do With Them
- The Standard Prime Lens. The Standard Prime Lens (or just Prime Lens) provides a fixed focal length.
- The Zoom Lens. Speaking of Zoom Lenses, the Zoom Lens might be your catchall lens.
- The Fisheye Lens.
- The Wide Angle Lens.
- The Telephoto Lens.
- The Macro Lens.
Are RF lenses sharper than EF?
The RF version is also slightly sharper wide open, but not significantly, and still less sharp than the slightly slower EF Sigma 50mm f/1.4. In short, the differences are there if you’re looking for them, but they’re not as immediately noticeable as the differences between the RF and EF versions of the 24-70 or 70-200.
Can Sigma DC lens on full-frame?
SIGMA DC lenses for DSLRs feature the same Canon EF and Nikon F mounts as the full-frame lenses, and thus, can technically be mounted to full-frame DSLRs, but you will notice significant vignetting on full-frame cameras, since the smaller image circle will not cover the entire sensor.
What is a 18 50mm lens good for?
Ideal for a wide range of photo and video applications including landscapes, portraits, street photography, architecture, and events, the 18-50mm f/2.8 DC DN Contemporary Lens from Sigma is a small, light, and bright standard zoom for crop-sensor mirrorless cameras.
What are Sigma DC lenses?
Sigma DC lens:
DC lenses have an image circle that covers APS-C size image sensors, therefore they are not for use on digital cameras having image sensors larger than APS-C size or on 35 mm or APS film cameras, as vignetting will occur.
What is a 16mm lens good for?
Uses a 16mm ultra-wide angle focal length. This exaggeration of relative size can be used to add emphasis and detail to foreground objects, while still capturing expansive backgrounds. If you plan on using this effect to full impact, you’ll want to get as close as possible to the nearest subject in the scene.
Which is better USM or STM lens?
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 EF stand for Canon?
Electronic Focus
Canon EF 85mm f/1.8 USM Lens) EF stands for Electronic Focus and is Canon’s longest established lens mount. It also has the widest compatibility and works with a wide range of Canon cameras. These lenses fit the entire EOS DSLR (Digital SLR) range including: • Full-frame sensor DSLRs.
What is better STM or USM?
What is better f/2.8 or F4?
An f/2.8 lens will give you twice the shutter speed of an f/4 lens when shooting with the aperture wide open. If you find yourself photographing moving people or other moving subjects, where fast shutter speeds are critical, then the f/2.8 is probably the right way to go.
What is the difference between f 2.8 L and f 4 L?
The most obvious difference between an f/2.8 and an f/4 lens is in their “brightness”, i.e. in the maximum amount of light each lens allows to reach the sensor. Another key difference lies in the depth of field.