UGG UK Lens Code

USM ---- ultrasonic motor.
the mirror body is equipped with ultrasonic motor used to drive the AF. Ring-type USM and micro-there are two kinds of micro-ultrasonic motors are generally used for small consumer grade lens.
IS ---- Image Stabilizer, image stabilization feature commonly known as anti-shake lenses. General than the non-use hand-held anti-shake lenses reduce the two shutter speeds.
FTM ---- Full-time Manual Focusing, full-time manual focus
that no matter what, even when the lens is autofocus, can manually adjust the focus, will not damage the lens.
FP ---- Focus Preset, focus pre-set default
that the distance between the subject, the subject entered this distance, the focus will be harmonized with it.
AF-S ---- in tracking auto focus lens will insist target
jumps to avoid being subject to wear and lens objects by the interference between right and wrong target (currently only the new out of the EF300 / 2.8L IS, EF400/2.8L IS, EF500/4L IS, EF600/4L IS have this feature).
ZIR ---- Inner Focusing and Rear Focusing
means includes a front lens group and focus group after focus, will help speed up the focusing speed and reduce the lens size.
AL ---- Aspherical Lenses, Aspherical lens
CaF2 ---- Fluorite, fluorspar
Canon's renowned low-dispersion lens material.
UD ---- as effective as low-dispersion lenses
fluorite lens. Two general and UD together with fluorite lenses with a similar effect.
S-UD ---- Super UD, super UD lens
one S-UD fluorite lenses in general and with a similar effect.
DO-E ---- Multi-Layer Diffractive Optical Element, such multi-layer diffractive optical lens
both fluorite lens and aspherical lens feature is installed in front of the lens group of the lens to correct reflex caused by chromatic aberration lens group. F400mm/4L DO IS USM is currently only used this lens.

[code] Nikon Lens common
D: on behalf of the lens focusing distance information can be returned as a reference 3D matrix metering and TTL flash distance computing!!
S: can be support automatic metering the camera lens!!
G: for the NIKON F MOUNT mount lenses, but no aperture ring design, the aperture must be adjusted to adjust the body, the body can support only the new generation of body, F5; F100; F80; F75; F65; F60; F55; D1; D1X; D1H; D100, published before the F90X body (including the F90X) is not supported by G TYPE lens!!
Micro: refers to the lens is Fengyun macro lens, or a macro function!!
IF: is in focus, in focus, the front lens group does not move, the same length mirror!!
AF-S: AF-have S lens, on behalf of lens focus by the Silent Wave Motor, commonly known as ultrasonic motors, not by the body focus motor, the advantage of focusing speed, can be full-time manual focus, the disadvantage is not light weight, price not low, supports AF-S lenses autofocus camera with F5; F4; F100; F90X; F90; F80; F75; F70; F65; D1; D1X; D1H; D100, then the rest of the body can also be metering but not AF!!
ED: Extra-low Dispersion acronym refers to the lens includes ED glass elements, ED lens to ultra-low dispersion lens, the image will not have dispersion phenomenon!! < br> VR: Vibration Reduction abbreviation for NIKON anti-shake lens code that can be used hand-held photography at slow shutter speeds, the increased stability of the screen, and does not shake and blurred out,UGG UK, the body has to support VR F5; F100; F80; F75; F65; D1; D1X; D1H; D100, but the rest of the body can use the lens does not support the VR function!!
DC: Defocus-image Control of abbreviations can be used for the prospect or the main image After the King of the soft focus, the lens ring on the multi-degree swivel control soft-focus, optical soft-focus, soft-focus lenses can not be made commercially available general effect!!
RF: Rear Focusing abbreviation for After focusing lens, RF and IF the difference is when the lens focus.
after the shift will move the lens group, but the length of the lens as the same,UGG UK!!
CRC: Close-Range Correction, for barrel variant modified structure!!
Aspherical Lens: the lens is engraved with Aspherical Lens. is the use of non-spherical lens with the lens!!
value is orange. Mainly to FA and later aircraft were in the P mode when the lens focal length used. (Longer focal length, higher shutter speed)
common lens code [Sigma]
ELD super low-dispersion lenses
the entire shooting range, regardless of any aperture series,UGG UK, can show high contrast and high resolution . Image contrast, sharp and clear, and beautiful color reproduction is superior and pleasing to the eye.
SLD ED lens
telephoto lens correction of chromatic dispersion and chromatic aberration common phenomenon.
DG digital wide-angle lens system
large aperture and short closest focusing distance, bright and clear the edge of the range, match the digital SLR is ideal.
EX lens series
show excellent lens area of ​​expertise, technology exquisite crystal; fine cut each piece with the Sigma Innovation - Super multi-coated lenses (SMC), effects of natural perfection.
ASP
aspheric aspherical group, can correct the image of the coma, distortion and so on. At the same time, overall the lens is more delicate.
APO APO lens
APO lenses use low dispersion (SLD) lens and Super Low Dispersion (ELD) and specially designed lenses, specifically to eliminate the phenomenon of color.
RF group after focus group after focus
with a unique lens system, after the group through the lens moves, play quiet high-speed AF function.
IF Internal Focusing
focus within the focus lens, the only internal moving lens group, no telescopic lens barrel length, control doubly stable.
HSM lens with ultrasonic motor
ultrasound of the ultrasonic motor drive, automatic Jiaoning Jing, high-speed.
CONV APO EX teleconverter lens
This system with APO EX teleconverter can be used, in addition to longer focal length, but also with the camera's (AE) AE function.
HF Vertical Focus (Helical Focus)
representatives of this device before the tube will not rotate when focusing, the former group as telescopic lens to achieve take-focus function, convenient to use a special filter.
DF mechanical device to take coke (Dual Focus)
to take the focus when the lens can focus the lens when taking the push or pull to the action, to convert the manual / auto focus mode, or as a focus Manual fine-tuning the image effect. While the camera automatically take focus operation, the lens barrel rotating the focus ring incomplete, easy control and stable.
DL series of advantages (Deluxe)
more features, fully equipped, the price is moderate, the lens can not be replaced by other brands at the same level.
UC precision micro
(Ultra Compact) is designed to compare this with the specifications on the market is more compact and multifunctional.

[code] TAMRON common lens
Di: for improved digital SLR camera lens, film machine can also be used with Sigma DG series about a considerable
Di II: APS-C digital SLR cameras special lens, and Sigma DC series about a considerable
XR: the use of special lenses make the lens lightweight implementation
SP: Advanced Lens Series