SLR camera lens basics.
The saying goes that good: that is to play to play SLR camera, it is so. .
SLR digital cameras (DSLR) and common DC one big difference is: General DC lens is fixed on the body, can not be replaced, you bought it at a later time and can only be used for this lens, no choice; and single-lens reflex digital camera lens can be replaced, as long as the card outlet is equipped with, you can replace the wide angle, telephoto, focusing, different types of lenses, this photographer offers a lot of creative space, of course, this also gave a lot of equipment fever frenzy squandering the money channel. In any case, once we were using DSLR, we'll have to start dealing with the various lenses.
Starting today, we will learn about SLR digital camera lens, some of the knowledge, the following I will find a variety of online information and my knowledge blend made of, because I think each of data is found not comprehensive, must re-order, I'm the original throw it! . .
Broadly speaking, all shots can be divided into two types: the zoom and focus, zoom for shooting landscapes, street sweeping, shoot animals, sports photography, as well as Lotus, etc you need to use a telephoto of flowers (because you can't run taking to the water); focusing fit to shoot portraits, flowers and plants.
From the manufacturer point of view, camera lens can be divided into the main plant and vice factory lens. .
Main factory lens refers to the main production camera manufacturers for their own camera supporting the production of lenses, such as Canon, Nikon (lens brand called nickel), Pentax, Sony, Olympus, camera manufacturers have their own production of lenses.
Vice factory lens refers to the Dragon (TAMRON), Sigma (SIGMA), Tokina (Tokina) 3 professional camera manufacturers produce lenses, suitable for all manufacturers who produce camera lens mount. .
Generally speaking, the main plant lens imaging of better quality, but Vice factory lenses relatively cheap.
Beginners can see the lens that is often unintelligible string of letters and numbers, so here I will teach you how to form consensus on the camera lens to understand the technical parameters. .
Or to illustrate it:.
Example, The lens: EF-S 17-85mm f/4-5. .6 IS USM. .
This is Canon's a zoom lens, EF-S is Electro-Focus (AF)-small, representative of the Canon EOS camera bayonet; 17-85mm represents this lens focal length of the recent (wide end) is the furthest 17mm, focal length (Telephoto) is 85mm; f/4-5. .6 lens indicates that the maximum aperture is 4, the minimum aperture is 5. .6; IS that lens is USM lens; anti-shake said this lens using an ultrasonic motor.
Another example is The lens: AF-S 60mm f / 2. .8 G ED. .
This is a team of Nikon Corporation, bayonet type AF that; S represents the use of a quiet motor; 60mm said jiaoduan is 60mm; f/2. aperture .8 indicating maximum is 2. .8; G indicates g lens, this type of lens aperture-ring design; ED Extra-low Dispersion is an abbreviation that represents the ultra low dispersion lens.
Identified only a few letters are generic, in most cases, the meaning of each company is different identification letters. .
First explain some of the common logo:..
F / - aperture range. .
AF-AF.
MF-manual focus. .
With MACRO-macro function.
AL-non-spherical lens. .
LD-low dispersion lens.
AD-irregular dispersion lens. .
XR-high-index lenses.
ED-low dispersion lens. .
ASL-hybrid aspherical tablets.
Fisheye-fish-eye lens. .
Zoom-Zoom lens.
The following letters were to present the company logo:. .
First, the Canon.
AFD: Arc-Form Drive motor arc, the early EF lenses are equipped with AFD motor, as USM focusing motor speed, focus sound than the latter. .
AL: Aspherical aspheric tablets.
DO: Multi-Layer Diffractive Optical Element diffractive optical lenses, Canon in 2000 for the first time it is applied to the lens, it also has the fluorite and aspherical lens characteristics, can inhibit the dispersion and the aberration correction of spherical and other, now mainly used in telephoto lenses in the field, a total of three lenses: EF 400mm F4 DO IS USM, EF70-300mm F4. .5-5. .6 DO IS USM, EF800mm F5. .6 DO IS USM。.
EF: Electronic Focus Electronic Focus, Canon EOS camera mount name is the name of Canon original lens series. .
EF-S:APS-C medium format digital SLR camera dedicated e-card. This is Canon APS-C specifically for their medium format digital SLR cameras designed electronic lens, it can only be applied in the Canon DSLR APS-C medium format, which is in the interface Department has a white square is used to align the fuselage card bit.
EMD: Electronic-Magnetic Diaphragm electromagnetic aperture. All EF lens aperture control of the electromagnetic driving element is deformed leaves stepper motor and aperture integration components, with digital signal control, sensitivity and precision are high. .
FL: calcium Fluorite, a calcium fluoride crystals, with extremely low chromatic dispersion, its control of ultra-low dispersion capacity than UD lenses even better.
FP: Focus Preset Focus Preset. .
FTM: Full-time Manual Focusing full-time manual focusing.
IS: Image Stabilizer Image Stabilizer, the camera Shake Reduction system. Only anti-shake lenses Canon first released in 1995, EF 75-300mm F4-5. .6 IS USM, which is the world's first anti-shake lenses. .
L: Luxury Deluxe, Canon's high-end professional cameras, are numerous photography enthusiasts to it at the Casino of the lens, it is flagged as the lens on the front of the Red reticle.
MM: Micro-MOTOr micro-motor, which is traditional with a drive shaft of the motor, more cost electricity, does not support full-time manual focus, and more for the cheap low end lenses. .
SF: roujiao Soft Focus.
S-UD: Super Ultra-low Dispersion high-performance ultra-low dispersion lenses, optical properties close to the fluorite lens. .
T-axis lens E:Tilt Shift Lens. Axis camera is mainly used in architecture, landscape, and commercial photography, Canon TS lens at present a total of 3: TS-E24mm TS-E45mm .5L, F3. F2. .8 and TS-E90mm F2. .8.
UD: Ultra-low Dispersion Low Dispersion lens, two UD together with the general and fluorite lens with a similar effect. .
USM: Ultra Sonic ultrasonic motor MOTOr, it split ring ultrasonic motor (Ring-USM) and mini ultrasonic motor (Micro-USM). Currently, USM ultrasonic motor in Canon's lens has been widely used, even at the low end of amateur camera.
2, Nikon. .
AI: Automatic Indexing automatic maximum aperture transmission technology. Nikon lens is manually published in 1977, it is the smallest aperture digital green.
AI-S: Automatic Indexing Shutter automatic shutter index delivery technology. Nikon manual camera, released in 1981, the aperture ring at minimum aperture number with orange numbers. .
AF-I: built-in motor and embedded CPU contact lens, the Nikon design known as the "I", launched in 1992, it is mainly used in professional telephoto lens. The introduction of the AF-I AF-S that from the historical stage.
AF-S: S that is representative of Silent Wave MOTOr quiet motor, equivalent to Canon's ultrasonic motors, high precision and quiet can be quickly focused. However, the Nikon AF-S lenses the current number is far less than Canon, the total balance of only 20. .
ASP: Aspherical aspheric tablets.
CRC: Close Range Correction system of short-range correction. .
D:Distance focus distance data transfer technology. D-type lens and non-d-type lens is the biggest difference between D-shaped lens supports 3D matrix metering.
DC: Defocus-image Control Defocus image control, Nikon original lens, can provide unique Defocus image control functions, its most important feature is to allow a particular background or foreground Pi Sheti fuzzy control, in order to obtain The best of-focus. .
DX: DX-series camera is Nikon's specifically for APS-C medium format digital SLR camera the lens is not designed for use in medium format models.
ED: Extra-low Dispersion Low Dispersion lens. .
G:G-lens and d-type lens is the biggest different G-shot no aperture ring design, there will now Nikon g-type lens promotion trends.
IF: Internal Focusing technology within the focus. .
M/A: Manual/Auto focusing, manual/automatic focusing switched.
Micro: Macro lens. .
Some new N:New, Nikon logo improved lens, such as third generation "little Cannon" AF 80-200mm .8D F2. ED NEW。.
NIC: Nikon Integrated Coating Nikon Integrated Coating. .
In Focus: Inter IF AF.
P: P-type lens with AF-type CPU and electronic contact lens manual focus lenses. Currently only three P-type Nikon lenses: 500mm F4P IF-ED ,1200-1700mm F5. .6-8P IF-ED and 45mm F2. .8 P. .
PC-Shift: axis lens.
RF: Rear Focusing technology after the group focus. .
S:Slim slim, Nikon lens with some light marks, such as AIS 1 .8S 50/...
SIC: Super Intergrated Coating super composite coating. .
TC: more distances Teleconvertor..
VR: Vibration Reduction Electronic VR system, and Canon's IS lens image stabilization system similar to the second generation now has grown to about 3-4 files can reduce the shutter speed. .
3. Pentax.
A: A series of manual focus lenses. .
AF/MF: manual/automatic switch on the whole.
AL: Aspherical Aspherical lens. .
Micro focus CF: continue the whole macro micro.
DA: DA Pentax lens is designed for APS-C frame digital SLR camera designed for digital-specific lenses, a green circle logo, can not be used in full frame models. .
Extra-low Dispersion ED: ultra low dispersion lens.
F: Early Pentax AF lens mount. .
FA: is the Pentax af lens with bayonet F bayonet, more than two electronic contacts.
IF: Inter Focus in Focus. .
Limited: limited edition lens, Pentax high-performance, high-grade lens.
M: M series manual focus lenses. .
.O M... D:Minimum Object Distance focus distance.
PowerZoom: power zoom. .
SMC: Super Mluti Coating super multi-layer coated, Pentax unique lens coating technology, the ability of anti-glare.
Soft Focus: Soft Focus Lens. .
Fourth, Minolta/Sony.
AD: Anomalous Dispertion anomalous dispersion, its use is the elimination of dispersion, and similar Nikon ED. .
APO: Apochromatic design using complex achromatic and using special low dispersion glass lenses to reduce aberration, thereby enhancing the long lens head quality, improve the contrast and sharpness.
ASP: Aspherical Aspherical lens. .
CIR: Circular smooth circular aperture background blur effect, makes the background defocused very natural.
D. .
Istance information with distance measurements, you can implement a Flash control.
DT. .
Igital technology, digital technology is designed for APS-C medium format digital single lens reflex cameras designed special lens, the present few DT lens by tenglong Foundry.
G: no aperture ring with Nikon G-series lenses are different Minolta G-series lenses are Minolta's high-end professional camera, a series of top-level work, the general term for material, usually have the following characteristics: a constant aperture, AD Lens , circular aperture, aspherical lens, floating focus system, high-quality lens body and so on. .
NEW: the new lens.
SAL: Sony Alpha Lens meaning, Sony, Konica Minolta's camera business acquisitions after the launch of the lens, Minolta lenses are basically just another name. .
SF: Soft Focus Roujiao lens.
TC: Teleconverter. .
STF: Smooth Transformer Focus images smoothly, on behalf of the lens is a Minolta 135STF. The adoption of a Tablet is installed in the vicinity of where the aperture is called Apodization Filter (spectrum trace filters), optical components, making the lens center portion of the light, but more towards the surrounding light is relatively small. To this end, the coke-Imaging section of the form contours, is ideal for soft ghost images. Currently the world's only Minolta 135STF a Sony this same product should not be considered.
SSM: Super-Sonic MOTOr ultrasonic motors, fast response can be achieved silent AF. .
UC: Ultra technological, reverence for the plating Coating Konica lens coating technology.
Planar: using Planar (Kaplan that) structural design of the Carl Zeiss lens &S226;. .
Sonnar: Sonnar (pine NA) structural design & Carl Zeiss lens S226;.
T *: Carl Zeiss multi-layer coating technology &S226;, is currently the world's most advanced coating technology. .
VS: Vari Soft variable roujiao, Minolta's roujiao lens.
VFC: Vari-Field Control variable field curvature lens may change as the field of bending the lens. .
Vario: zoom lens & belonging to Carl Zeiss lens S226;..
ZA: Carl &S226; Zeiss lens designed for Sony, with Sony α mount, the lens is AF. .
V. Lycra/Olympus/Panasonic.
ASPH: non-spherical lens. .
D: Lycra for the Panasonic Corporation design digital dedicated lens.
ED: ultra-low dispersion lens. .
Zukio: Olympus traditional camera lens with bayonet OM, and 4/3 System digital SLR bayonet is not universal, you need to use through interposer ring.
Zukio Digital: Zukio lens products in the digital age, has been redesigned, more suitable for the digital era. .
SWD: Supersonic Wave Drive ultrasonic motor, Olympus has just developed a new technology, published on the PMA2007 several has been applied on the lens.
MEGA O. . I. . S: Panasonic's optical image stabilization system. .
Summilux: production of lens nowadays Lycra, as long as the aperture value is .4 F1., will be named, for example, the Leica D Summilux Summilux 25mm F1. .4 ASPH.
Elmar: the current production Leica lens, as long as the aperture value is F4 lens around, will be named Elmar, such as Leica D Vario-Elmar 14-150mm F3. .5-5. .6 ASPH MEGA O. . I. . S. .
Elmarit: production of lens nowadays Lycra, as long as the aperture value is approximately .8 F2., will be named, for example, the Leica Elmarit D 14-50mm F2 Vario-Elmarit. .8-.5 ASPH MEGA 3.. .I. O .S.
VI, Sigma. .
ASP: aspherical tablets.
APO: APO APO lens using a complex design and special low dispersion glass (SLD) lens, to reduce color aberration, thereby enhancing the image quality telephoto lens to improve contrast and enhance clarity. .
DC: shima designed specifically for APS digital single lens reflex cameras design digital dedicated lens cannot be used in full-frame models.
DF: Dual Focus double focusing, such cameras in the AF, the focus ring does not rotate; in the MF, the damping medium, so a good grip performance. .
DG: optimum design of a digital universal lens can be used both in the APS format digital SLR cameras, you can also use the full-format models.
DL: DeLuxe Deluxe, although price is moderate, but the DL is a full-featured camera lenses. As with other lenses, like Sigma, with dedicated hood, a half-file aperture, manual aperture settings, depth of field instruction, distance instruction, IR corrective instructions. .
EX: EXcellence, belongs to the professional lens series shima, with every piece of fine cut of shima innovation (SMC) super multi-layer coated lenses, the effect of nature, to the next level, features has a coating and EX EX..
HF: Helical Focus spiral focus. .
HSM: ultrasonic motor.
IF: Internal Focus. .
Macro: macro lens.
OS: Sigma's optical image stabilization system, this technology seems very mature now, only two anti-shake lenses equipped with the OS system: AF APO80-400mm F4. .5-5. .6 EX OS HSM and the AF18-200mm F3. .5-6. .3 OS DC Lens. .
RF: the back focus.
UC: Ultra Compact Ultra-compact. Such lens size and light weight. .
7. the Dragon.
AD: Anomalous Dispersion anomalous dispersion, with the logo of the Tamron lens, the conditions to eliminate the dispersion function. .
ASL: Aspherical aspheric tablets.
ASPH: composite aspherical lens. .
DI: Digitally Lntegrated digital camera, a digital design, digital and traditional generic lens can be used both in the APS format digital SLR cameras, you can also use the full-format models.
DI Ⅱ: Dragon specifically for digital SLR cameras, APS developed a small camera like the field, can only be used in the APS-frame digital SLR cameras. .
IF: AF.
LAH: hybrid aspherical lenses with LD. .
LD: Low Dispersion low dispersion lens.
SP: Super performance super-performance lens, Tamron's high-performance large-diameter lens, is Tamron's professional lens series. .
XR: high refractive index lenses, ensure the luminous flux and imaging quality, significantly reduce the size and weight of the lens, it is most used in the Dragon's big zoom ratio lens etc..
VC: Vibration Compensation manual correction function, Tamron's optical image stabilization system is just developing, at present only a: AF Di 28-300mm F3. .5-6. .3 XR VC LD Asp [IF] Macro. .
ZL: zoom ring and locking mechanism.
8, Fig Korea. .
AS: Aspherical aspheric tablets.
AT-X: Advances Technology-Xtra special lens design of advanced technology. .
D: digital design of the lens, better suited for the digital age demands on the lens, such as AT-X M100 Pro D..
DX: designed for APS-frame digital SLR camera designed for digital-specific lenses can not be used in full frame models. .
M:Macro macro lens.
Pro. .
Rofesional professional lens, is the most high-end products tuli, lens front end with gold rings AT-X lens.
SD: Super Lower Dispersion Low Dispersion lens. .
SZ-X: lightest tuli zoom lens series is a manual focus lens.
SZ / SMZ: Tokina amateur lens series, also belongs to manual focus lenses. .
IF: AF.
