DSLR(Digital Single Lens Reflex)

DSLR namely performance Digital Single Lens Reflex,  its light-sensitive devices are CCD or CMOS. SLR Digital camera is refers to Single Lens reflective Digital camera, namely Digital Digital, performance alone, Lens Reflex reflective Lens, the abbreviation of DSLR. The market of representative type commonly nikon, Canon, SONY, BinDe, Fuji, etc. This kind of camera general large size, heavier.

Product synopsis

The digital camera, it digital SLR than normal digital camera, dimension. greater photosensitive device, so in color and brightness of performance will more outstanding.

In filming because photographer saw scene is through the camera captured picture, so SLR cameras had seen and income are basically the same.

Addenda:

DSLR person, full Digital performance Lens Reflex is called, Digital camera is also Single Lens glance. Many people only know DC (Digital Camera), but don't know DC an important branch of the - DSLR.

DSLR in the past is indeed a "professional" and "extravagant" signs, the user group is small. However, in recent years, with each brand DSLR continuously depreciates, entry-level DSLR have already walked down shrines, and increasingly towards miniaturization, civilian development, its popularity is an inevitable trend.

To help you recognize DSLR possible.it change before people for DSLR "nonself generation" of opposites understanding, clearing the consumers to such worries and concerns, is the camera is the purpose of this article.

All is not DSLR high-end products

2006 was a DSLR war full-blown a year. In this year of SONY, samsung, panasonic three traditional home appliance manufacturers collective foray into DSLR market, but like Canon, nikon, BinDe, Olympus such traditional manufacturer also pulled out their latest low-priced product, on the one hand, to cope with increased product competition, on the other hand, it enormously enrich the consumer choice scope, and will entry-level DSLR prices further reduced to freezing point. Although high-end DSLR product easily tens of thousands of yuan, but the current 4000 yuan the following belt lens entry-level DSLR sets of machines and 3,000 yuan of right-and-left single body everywhere, the price has cinch high-end products.

The price has been matches the high-end consumption level of a digital camera's defence. Speak, because DSLR and high-end consumption level cameras price segregation is not obvious, directly will shake part originally bought consumption level cameras consumer choice. Although DSLR than high-end consumption level cameras shape older, but DSLR manipulation and imaging quality has a qualitative leap. Add may, according to needs to change different lens, these advantages constituted DSLR absolute temptation. And consumers most choice of 1,000 to 2,000 yuan, consumption level cameras, although the imaging quality also adequately, but with DSLR exerted.

Purchase reason

The imaging quality excellent

Because DSLR in the area of photographic device far outweigh its consumption level cameras in the area of photographic device, so pixel density relative greatly reduced, so in tolerance and solutions as force and high performance is far beyond the mode of consumption level cameras. Photographic device size is also consumption level cameras in sales in the most reluctant to factors concerning, manufacturers often will be with high pixel and other indicators distracting. In fact, the size of the indexes of photographic device tests on important degree far above pixels quantity. Consumption level cameras photosensitive device size biggest however is 1/1.7 inch, whereas SLR photosensitive device area is mostly APS - C specifications (23.7 mm x 15.6 mm) and 135 until all the same size film size (36mm x width 24mm).

At non-intervening

DSLR shutter is purely mechanical shutter or electronic control of mechanical shutter, shutter lag very short, press the shutter after can immediately imaging, non-intervening tool.

DSLR boot speed only a few hundred milliseconds, continuous shooting speed is quick. While consumption level cameras is pure electronic shutter, there exists serious shutter lag problem, this is a weakness of soft rib consumption level cameras, therefore it on civial passable, but not for non-intervening objects in motion - you income imaging, more often than not, when you press the shutter of the movement.

Lens 3.0-inch

SLRS frame, is through the lens 3.0-inch, look very bright, and you have seen pictures, that you will pictures, connect the light made focus more readily seen.

While consumption level cameras is through photosensitive sensor and 3.0-inch LCD monitor, in brightness and colour of observation aspect and the actual existence of certain error, be aware of not easily, in a dark place more will see not pure picture. Consumption level cameras on even with optical viewfinder, its light path is not from the lens through, so also exists parallax.

Lenses can be replaced

DSLR lens can according to shoot to determine if the use of what lens, may be replaced. While consumption level cameras shots don't change, and lens quality than DSLR shot poorly.

With large manual functions

DSLR can be easily manually zoom, manual set photographic parameters, etc can make some special shooting (e.g. by B door clap fireworks). While many consumption level cameras are automatically (especially card machine), most camera without manual zoom ring, want to rely on motor automatic zoom, because zoom and focus speed is slow, will lose many shooting opportunities. Many people think that automatically than manual good, true is an error, only automatic function without manual function of the camera is often low-end camera, because of the accuracy and speed automatic, far less than manual so high.

You really need a DSLR?

If you use just a camera clap scenery and "include" commemorative according to the record and home entertainment, indeed, no need to buy SLR. DSLR is good, but because our price and weight of reasons, not apply to everyone. In addition, even if have DSLR, it does not mean henceforth can make good pictures. Because the DSLR more powerful functions need to learn more photography knowledge can use. If the perennial with AUTO block, so the advantage of DSLR will greatly abate.

Consumption help

In addition, if you belong to several situations, then you really need a DSLR.

1. If you to high quality requirements, please choose DSLR.

In contrast, consumption level phase chance to let you down. The most simple example is that of the shallow dof (DSLR throw the background), consumption level cameras to catch up with.

2. If you often photographed people, please select DSLR.

Consumption level cameras when photographed people imaging although can clearly, but we must rectify an understanding: good photo is main body is clear, the focal outside fuzzy, not the whole clear.

3. If you have special demand, non-intervening need a faster response, please select DSLR. If you use consumption level cameras engaged in sports scene non-intervening, due to the influence of shutter lag, you may be very difficult to catch you want that instant, you get only you don't need action. The results will directly cause you to "non-intervening photography" this one ways to lose confidence, it will only take the stillness of the things. Still have a bit is trying to get in touch with friends should understand SLR,

The greatest concern DSLR three categories of nouns

Focal length

Often hear people asked DSLR camera lens "is several times", attention please, this is extreme dilettante asked method. Digital cameras are born, due to the focal length of the lens pitifully small with traditional 135, in order to distinguish the focal length of the lens, so adopted only say zoom multiples and do not say the practice of actual focal length, so that can let a person forget small focal length and small light-sensing surface area, this is actually one kind of distraction distraction. But DSLR is using 135 camera lens, it usually based on actual focal length as the index, such as 17-85mm, said a zoom lens range is 17mm ~ 85mm. If stubbornly asked lens is several times, then this branch of the camera is five times zoom. Such conversion is not scientific truth is, as DSLR may replace lens is, if change 70-200 lens, then zoom multiples less than 3 times, but base is from 70mm began, in fact, than the front that one 5 times the zoom lens see farther. Even consumption level cameras, optical zoom multiples brings the final results is also related with initial base, not all the same multiples vision is same, so consumption level cameras multiples is also a fuzzy concepts.

Original lens and a vice factory lens

Like Canon, nikon, BinDe such production DSLR fuselage camera manufacturers, to corresponding oneself DSLR system produce of lens, known as the original lens. While some professional lens manufacturers can provide the other different brand camera lens, thus interface that lets consumer have more choices, such as tokina tamron, sigma, such manufacturer Canon, nikon, BinDe etc interface lens, commonly known as the vice factory lens. Of course, to associate factory to call these professional lens manufacturers like is not satisfactory, because these are professional manufacturer produces the lens many scenes, the quality is not lost to original lens, the price is much less than the original lens, become a lot not economically prosperous photographic lovers preferred pursuit.

Focal length conversion

Current main DSLR in the size of the photographic device than consumption level cameras though used by big many, but still not reach 135 film specifications (unless it's all format cameras), so it is installed on the camera lens, 135 clap out images may range with different, often must be 135 camera by 1.5 times (nikon products) or 1.6 times (Canon products). For example, when nikon DSLR loaded on a 50 lens, its view is equivalent to 50 x 1.5 = 75mm focal length of perspective. But only is quite a focal length, Angle of optical properties is no reason to change. Even consumption level cameras in the campaign called equivalent to 135 camera xxaccounting mm ~ xxaccounting mm ", also only refers to the perspective quite, optical effect cannot "pretty".

DSLR classification

In film photography era, SLRS hierarchies comparative meticulous, is divided into: low-end beginner, ZhongDiJi, intermediate, senior professional level, accurate and professional level.

To digital photography era, SLRS hierarchies of has simplified trend, may be digital SLRS research and production cost is higher sake! General component is: low-end entry-level, intermediate, quasi professional level, professional level.

For instance: the Canon 400D, nikon D40X is low-end entry-level, Canon, D80 is the 40D nikon Canon 5D intermediate machine, nikon D300 is inferior, the professional level, the Canon of 1DS3, the D3 is professional machine nikon.

Editor this segment digital SLR classification

entry-level

The D60 D40, nikon: D5000, D3000, and D3100.

Canon: EOS - course, EOS - 450D, EOS - 500D, EOS - 550D.

SONY: alpha 200, alpha 300,. Alpha 330, alpha 290, alpha 390, alpha 560, alpha 580

BinDe: K - m, K - x, K - r

Olympus: E - 420, E - 450

In the end

D80, D90, nikon: D7000

Canon: EOS - the 40D, EOS - 50D, EOS - 60D, EOS - 7D

SONY: alpha 350, alpha 700.

BinDe: K20D, K - 7, K - 5

Olympus: E - 510, E - 520, E - 62

high-end

D300s D300, nikon: D700, D3, D3s, D3x,.

Canon 5D, EOS, EOS - - mark Ⅱ, EOS - 5D Ⅲ, EOS - mark 1D mark Ⅲ 1Ds 1Ds mark, EOS - Ⅳ.

SONY: alpha 900

Olympus: E - 3, E - 30

The hasselblad: 503CW, H3D - 31.

Measurement card: S2.