For these of you who’re interested in what these acronyms are all about, I’ve put collectively a listing of what phrases are used, what they stand for, and after all, what they are going to truly do or keep away from for you.
Common abbreviations.
Earlier than we get into the fundamentals of why they’re all completely different, let’s take a look at what they’ve in frequent. There are three frequent phrases used to explain SLR lenses which might be simple to grasp and strictly discuss with extra artistic and highly effective options.
focal size: – The scope of the recorded scene is eg 16-35mm. A lens that covers a spread of 16mm (comparatively broad) and zooms in to 35mm.
Most aperture:- The utmost velocity at which the lens can let in mild. eg f/2.8 or f3.5 – 5.6
If the lens solely has one quantity, then that’s the most attainable aperture.
If the lens has 2 numbers, these are the utmost attainable apertures, relying on the focal size the lens is about at.
The decrease the quantity, the bigger the aperture and the quicker it permits mild. (see my upcoming article on the regulation of reciprocity)
AF/MF: Change between auto focus and guide focus
Abbreviations for Canon lenses
Phrases used to explain Canon lenses
Canon produces a particularly wide selection of lenses for his or her EOS cameras. Coupled with the ranges from Sigma, Tamron and Tokina, Canon house owners get an unlimited vary of Canon Match SLR lenses. Abbreviations utilized by Canon are as follows.
EF: Digital focus. The lens mount suits the whole Canon EOS DSLR vary.
EF-S: As above however solely appropriate for digital SLR cameras with APS-C sensor corresponding to 20D, 30D, 40D, 50D and 300D, 350D, 400D, 450D, 500D. The S stands for “Brief Again Focus,” that means the again of the lens is way nearer to the CMOS (CCD, if you’ll) than EF lenses.
USM: Ultrasonic autofocus motor. Two varieties. USM micro – a direct substitute for the techniques discovered on older FD engines and “Ring USM” with guide override.
DO: diffractive optics. A know-how that allows Canon to provide lenses with a shorter general size.
TS-E: Tilt-shift lens used for perspective correction in images, often in architectural work to change converging strains and depth of subject. Much like the ‘Sinar’ digital camera.
L lenses: Canon Skilled with greater optical high quality and not particular performance. Normally white in color. All L collection lenses have a pink ring on the skin.
MP-E: Digital macro picture. Lenses designed for macro with digital iris management operate.
IS: Picture stabilization, A hand-shake discount system. The Nikon model known as VR (Vibration Discount) and the Sigma One known as OS (Optical Stabilization).
Abbreviations for Nikon lenses
Description of Nikon lenses
Nikon produces a variety of lenses with their very own particular acronyms. Sigma, Tamron, and Tokina additionally make Nikon Match SLR lenses, so the selection is nearly as broad
BY DC_ Nikkor lenses: Defocus picture management to regulate spherical aberration and due to this fact blur, making a rounded blur impact for portraits.
CRC (Shut-up Correction): For fisheye, wide-angle, micro and restricted medium telephoto lenses that present greater high quality at shorter distances.
DX Nikkor: optimized for our bodies with smaller sensors.
Ed: Additional low dispersion glass. Wonderful sharpness and coloration, correcting the blue and pink mild gradient.
IF: Inner focus. The lens size stays unchanged
macro: appropriate for shut focus.
G: Aperture set by the digital camera physique.
Nano crystal coating: non-reflective coating for clearer photos.
VR: Vibration Discount: Nikon’s model Picture Stabilization to cut back the results of hand shake.
PC-E: Perspective management for architectural images.
HR: Rear focus for smoother autofocus.
Silent Wave Motor: Silent AF
Abbreviations for Sigma lenses
Acronyms for Sigma lenses
EX: Skilled lenses from Sigma.
DG: For full body our bodies
direct present: For APS-C case.
ASP: Aspheric lens.
apo: Apochromatic lens. Distinctive to Sigma and for chromatic aberration.
working system: Optical stabilization.
HSM: hypersonic machine. Silent AF.
RF: Rear focus..
IF: Internal focus, so the bodily size of the lens is fastened, decreasing handshake when capturing with longer focus.
DF: Twin focus. Doesn’t rotate throughout AF.
conv: Used with Sigma teleconverters.
Abbreviations for Tamron lenses
Tamron lenses described
ASL: Aspheric
DISPLAY: Reduces chromatic aberration.
from : full display screen
Tuesday II: Cropped body.
IF: Inner focus.
LD: Low dispersion glass to cut back chromatic aberration
macro: Designed to give attention to nearer topics
SP : Tremendous efficiency.
XR: Additional refractive glass for improved optical outcomes.
VK: Vibration Management corresponding to Canon’s IS, Sigma’s OS and Nikon’s VR.
For extra info on lens acronyms and lens purposes, see parking cameras. Knowledgeable retailer providing absolutely assured SLR lenses within the UK.