Shutter (Shutter) ------ elementary wisdom of phot

Shutter (Shutter) is to control the camera exposure time of the portions; shutter time shorter, less exposure time.

shutter go process diagram:







in agreement with the shutter in the camera rank is classified as: before the mirror shutter, lens shutter, aperture, shutter, mirror shutter, mirror shutter, focal plane shutter.

mirror shutter
original front of the camera's shutter is just a cover, the front of the camera by hand exposure lowered the stopper, the stopper by hand after exposure. Later improvements to wind two leaf shutter. Mirror shutter for miniature cameras, such as Eddie more than 16 Sa,GHD Blue Butterfly 2011, dense North.
Eddie Sa 16 front of the camera shutter is composed of four thin metal blade, the highest speed is 1 / 150 sec. Northrop B-
close the front of the camera miniature camera shutter by two thin metal blades, speed: T, B, 1 / 2, 1 / 5, 1 / 10, 1 / 20, 1 / 50, 1 / 100,1 / 250,1 / 500, 1 / 1000 sec.
mirror shutter advantages: simple structure, simple assembly
mirror shutter drawback: because on the front of the lens, so the shutter open to a large diameter, cover to dodge light route, so wading distance to the shutter blades longer, so the shutter speed is slower


many mid-range lens shutter 35mm camera, twin camera,GHD IV Mini Straighteners, media format, and the simplicity of modern 35mm cameras, APS cameras usual leaf shutters.
Bolingezi Factory Turners TENAX CommScope camera shutter early lens shutter consists of two small dial control, such as Bailingezi (CPGOERZ) plant Turners (TENAX) camera with the CommScope lens shutter and a turntable control: 1,1 / 2,1 / 5,1 / 10,1 / 25, 1 / 50,1 / 100,1 / 250; dissimilar control dial D (equivalent to T ) and Z (the equivalent of B).
leaf shutter only after graduated with a circuit of ring control.
CommScope
sync shutter (SYNCHRO COMPUR)
Hasselblad 500C / M: B, 1 to 1 / 500 seconds.
Contador super B reflective machine (CONTAFLEX SUPER B) simultaneous shutter Zeiss Ikon Zeiss CommScope by Contador Super B, Super B Contador reflective machine (CONTAFLEX SUPER B)-degree: B, 1, 1 / 2, 1 / 4, 1 / 8, 1 / 15, 1 / 30, 1 / 60,GHD Red Straighteners, 1 / 125, 1 / 250, 1 / 500.
Zeiss Ikon CONTESSA PRONTO shutter shutter Pu Longtuo (PRONTO)
sample; Zeiss Intuit by Kankan Sa:-degree: B, 1,1 / 2,1 / 4,1 / 8,1 / 15,1 / 30,1 / 60,1 / 125 , 1 / 250, 1 / 500.
more lens shutter blades manufactured from sheet steel, with 2,3,5-chip to 5 most mutual. Also known as lens shutter leaf shutter. Lens shutter advantages: simple and small, multi-camera in a simple to use. Flash can synchronize by shutter speeds of always.
lens shutter drawback is namely if you absence to change the lens:
every lens requires a shutter (such as the Hasselblad). Lens shutter, aperture, attach with the camera even after half of the lens does no move aboard, merely for the premier half of the lens; such as Kodak, whether Timna (RETINA) 35 毫米 SLR cameras and Zeiss Ikon's Contador reflective machines take over B this design.

camera hole shutter hole
some simple feature of both the shutter, aperture shutter maximum of these double-blade diamond hole. Aperture shutter namely usually completely closed: the instant the shutter is pressed, double-blade iris shutter open to a predetermined aperture, the aperture to maintain the shutter open for a predetermined time immediately later the closure: this way, the aperture and shutter right afresh functions,GHD NZ, many of lightweight cameras use aperture shutter.

mirror shutter shutter
Science Po (Ricoh 126 camera)
seikosha shutter (Topcon 35mm camera, Xing and optical SETR2 35 mm camera)

mirror shutter
the Great Wall-size SLR cameras DF4 (DF120) mirrors, double shutter. Posted ahead the metal edition of the double mirror of the first shutter curtain, the second curtain is bent metal curtain. Winding up the curtain while the mirror moves, left axis, but the arbitrage of the second curtain likewise moves up, block the light. Press the shutter button, the first arc of the second curtain down, await by with mirror curtain down, the formation of a breach among two curtains. The gap is small shutter speed is lofty, a large gap lower shutter speed. World War II German instrument Hager factory Aike Sa 35 mm SLR camera with a alike shutter.

focal aircraft curtain shutter
called focal plane shutter Shutter. Early focal plane shutter is a long dark cloth glue, the top row of a few rectangular holes, a more than a alley. When a rectangular hole to move even faster than light-sensitive film, the exposure of the membrane ambition be. The more taper hole, less light on the film,GHD IV Black Straighteners, the higher the shutter speed equivalent. The afterward step of development is to form a curtain with two hole width can change. Curtain of black cloth and metal coating matters; metal focal plane shutter curtain, multi-piece strip of sheet metal by the composition of the bordering metal slices slightly overlapping, do not leak light. The operation of the shutter curtain open direction, curtate and perpendicular two. Today a heap of the shutter curtain is made of thin aluminum sheet, some are manufactured by a titanium alloy.

constructed according to the classification of the shutter: mechanical shutter, electromagnetic shutter

mechanical shutter
the incipient definition: only the spring alternatively other mechanical framework, without relying on electricity to drive the shutter structure
new definition: tin be nailed along the mechanical components apt steer the shutter structure-driven approximate because the spring, solenoid valves and other components ....

electromagnetic shutter
double electromagnetic shutter.
full electromagnetic shutter control mechanism formed by the electromagnet (the industry term is phoned the electromagnetic valve),GHD Classic Straighteners, controlled by the electronic circle when the body makeup. Today's electronic circuits electromagnetic shutter in both quartz-piece timing components, electromagnetic shutter precise than the mechanical shutter.


special shutter mode of operation

B shutter
When the shutter button is pressed, the shutter is open, until you release the shutter button before the shutter closes, the shutter is called B shutter.
T and B shutter shutter
the same function, fair reception the shutter button in the second before the shutter closes, the extra usually found in accustomed mechanical SLR camera, most cameras immediately have no such equipment.
X
ordinarily refers to the shutter open shutter speed flash sync

Shutter Priority: Shutter prerogative, television (Canon camera) = Time Value; S (Nikon) = Shutter