With the development of lens technology, the term is now commonly used in DSLR lenses more and more and sometimes confusing to some people.
In the paper are taken from various sources, I will be a little explaining and helping menterjemahkah Symbols and Terminology Codes on DSLR Lenses
I started from the brand Canon
what can be defined from a lens with a code
Canon EF-S 18-55 mm f/3.5-5.6 IS
This zoom lens is usually packed when buying a Canon dSLR camera for beginners like Canon 1000D, 1100D, 450D, 500D, 550D, 600D,
Canon EF-S: means the model lens designed specifically for DSLR cameras with a crop sensor / small (relative to the camera film (full frame). Lenses can not be used to put on full frame DSLR cameras such as the Canon 5D or Canon 1Ds.
18-55mm: This lens focal range. For those who are experienced in using a film camera, lens focal range is equivalent to approximately 29-88mm. Lens focal range is versatile enough for everyday use.
f/3.5 - 5.6: This means a maximum aperture range of the lens. At 18mm focal range, the maximum aperture is f/3.5, while the 55mm focal range, the maximum aperture is f/.5.6.
IS: It stands for Image Stabilization, which means this lens has the ability to dampen vibrations our hands so that the resulting image does not blur. This feature is very useful especially when we take a photo with the lighter low-speed settings.
Another example is
Canon EF-S 17-55mm f/2.8 IS USM
When you see the number of openings only 1 only, as the lens above (f/2.8), this means that the lens has a constant aperture. Of the focal range of 17 to 55mm, the maximum aperture is f/2.8 can we use.
USM: Abbreviation for Ultrasonic Motor. It signifies in the lens there is a built-in auto focus. USM also indicates a faster auto focus and silent.
Canon EF 70-200mm f / 4 IS USM
The lens above is called telephoto zoom focal range is large enough for the 70-200mm
Nikon lens decodes
In our Nikon lenses will be familiar with the Code - the code as below
Nikkor AF-S DX 18-200mm 1:3.5-5.6 G ED IF VR
The following explanation
• Nikkor: Nikon's name for an artificial lens.
• AF-S: Nikon lenses have motors "SWM" (Silent Wave Motor) so that the process be done in the lens auto focus, not on the camera body ..
• DX: Nikon lenses specifically for DSLR Nikon DX-format (APS-C sensor has). When the lens is mounted on a Nikon DSLR like the Nikon D3 FX format, there will be vignetting.
• G: Stating the absence of the aperture ring on the lens. The selection of the aperture value can only be done through the camera dial (old Nikon SLR camera is not compatible with this G lens).
• VR: Vibration Reduction, the lens stabilizer technology to minimize hand-shake when shooting in low speed. Using VR lens blur likely be avoided because VR will compensate for the vibration element, the ability to stop 2-3.
• IF: Internal Focusing, the auto focus occurs in the lens so that no outer lens that rotates when the lens focus. This allows the addition of a specific filter on the front of the lens.
• ED: Extra low Dispersion, special lens elements aimed at improving contrast and sharpness by eliminating color distortion when light enters the lens / chromatic aberration.
So, the last lens means lens Nikon DX format with focus motors in the lenses, have a range of 18mm zoom nearest, farthest at 200mm with a maximum aperture at f/3.5 at wide, f/5.6 farthest, having VR stabilizer technology, not has aperture ring, equipped ED lens elements and mechanisms of auto focus system internally. Because the DX lenses are designed to be mounted on Nikon APS-C DSLR imsensor, it will be exposed to the crop factor of 1.5 x so that effective coverage is equivalent to 27-300mm.
For other Nikon lenses, there are many other terms that are commonly used. These are:
• SIC: Super Integrated Coating, a special coating to eliminate lens flare when exposed to sunlight.
• N: Nano Crystal coat, which is also used lens coating to reduce flare and ghosting.
• ASPH: Aspherical lens, special lenses to reduce distortion and color aberration.
• D: Distance information, to provide information about the distance of the object to the camera thus helping the system work Matrix metering and iTTL flash.
• DC: defocus control, to vary the variation bokeh portraits that DAPT has blurnya appropriate background.
• Micro: The term for a special macro lens.
Unfortunately the code above does not apply universal lens, so the lens is another brand will have a different code. But no matter, it is usually the same code structure. List of abbreviations below will facilitate your understanding of the other brands of lenses
HSM: Abbreviation of Hypersonic Motor. That is about the same as USM, rapid auto focus and silent. This code you'll find at Sigma brand lenses.
AF-S: Same as the above code, this code you will find in the Nikon brand lenses.
SAM: Same as the above code, this code you will find in the Sony brand lenses.
AF: Nikon lenses that do not have built-in auto focus. In the beginner cameras like the Nikon D60 and D5000, the lens can not use this to auto focus, but have a manual focus.
VR: It stands for Vibration Reduction, Image Stabilization function with.
OS: Abbreviation of Optical Stabilization, together with Image Stabilization function. This code you will find in the Sigma lens.
VC: It stands for Vibration Compensation, together with Image Stabilization function. This code you'll find Tamron lens.
DX, DT, DC: Code optimized lens for crop sensor cameras. This code will find in lenses Nikon, Sony or Sigma.
DG: The code in the compatible lens for crop sensor cameras and full frame. This code you will find in the Sigma lens.
Thus a small note about the code symbols and terms on DSLR lenses, Hope can help you to recognize over the lens which you will use later.
