Camera Parts

Thanks for visiting our site!
Arri Arriflex
Checkout Ebay Auctions For The Cheapest Prices

Check out Amazon:

Here are some more information for Arri Arriflex:

Rotary disc shutter

I want to introduct something about Ducati 999 Carbon Cam Belt Cover. Print Page Product Description Original: China Process: Vacuum Bagging Material: High Quality 3K Plain carbon fiber fabric, 200g/m2 with UV coating protection Finish: Clear coated & UV protected for that non-fading hi-gloss look. Attractive original part replacement. Fitment: Built to exacting specifications.Trademark: OYA Model: Ducati 9
(Redirected from Shutter angle)

When the shutter is open, the film is exposed. When it closes, the next frame of film is brought into position by the claw.

Adjusting the shutter angle affects the amount of time that film is exposed to light.
A rotary disc shutter is a type of shutter. It is notably used in motion picture cameras.
Rotary disc are semicircular mirrors which rotate in front of the film gate, and thus expose the film. As the mirror spins it reflects the image into the ground glass so that it can be viewed by the camera operator part of the time. The other part of the time the mirror allows the light to pass on to the film. On simple cameras this shutter is fixed and usually semi-circular. On more advanced cameras the shape of the shutter can be adjusted. This shutter setting is referred to as the shutter angle.
Adjusting the shutter angle controls the proportion of time that the film is exposed to light during each frame interval. The angle of the shutter forms a proportion to the time that each frame of film is exposed:

The primary reason that cinematographers adjust the shutter angle is to control the amount of motion blur that is recorded on each successive frame of film. A tight shutter angle will constrict motion blur. A wide shutter angle will allow it. A 180 shutter angle is considered normal.
Tight shutters create a stuttering stop motion animation look that has become popular in action and war films. In particular tight shutters are used to capture particles flying through the air, such as dirt from an exploding mortar.
On most film cameras the shutter angle is changed by removing the lens and adjusting the shutter with a special tool. This cannot be done while the camera is operating. Some cameras such as the Arriflex 435ES can modify their shutter angle during the shot. This is sometimes referred to as an electronic shutter. An electronic shutter can compensate for the exposure change caused by a speed ramp without changing the aperture and affecting depth of field.
Other types of shutter adjustment such as an out-of-phase shutter, and a fluttering shutter are also possible. Normally the film is held steady in the gate whenever it is exposed to light. Special shutter adjustments allow the film to be exposed while the camera mechanism is actually moving the film to the next frame. In the film Saving Private Ryan, cinematographer Janusz Kaminski used such a shutter adjustment to give his film the look of World War II newsreel photography. Previously, this effect could only be achieved by purposefully mis-adjusting the timing belt of the film advance mechanism in the camera. However, several manufacturers now provide accessories to electronically control the phase relationship of the shutter and film advance mechanisms. One such device is the Timing Shift Box available for the above mentioned ARRI 435 series.
Electronic equivalent
Many video cameras also provide the ability to adjust their shutter. In most cases the camera does not have an actual mechanical shutter. Instead, this adjustment controls the amount of time that the electronic sensor collects light in order to create each successive image. Because electronic cameras do not need to mechanically advance film, it is possible for the shutter to be open for nearly the entire period of each successive frame. At 24 frames per second, it is possible to expose a frame for nearly 1/24th second, achieving longer motion blur otherwise impossible to achieve on film at sync sound speeds.
The term electronic shutter is often used to describe the electronic process of controlling exposure time on a light sensor. The same term is also used in film cameras to refer to a mechanical rotary shutter which can adjust its shutter angle electronically while shooting.
Rotary shutters on still cameras
While the vast majority of rotary shutters are naturally used on motion-picture cameras (as well as projectors), there were some still cameras that employed this type of shutter, notably the Univex Mercury and the Olympus Pen F SLR. Both of these cameras were half-frame 35mm cameras (frame size 18 x 24 mm). The rotary shutter proved to be very simple to construct, accurate and reliable in these cameras, though in the case of the Univex it resulted in a very strange "hump" on top of the camera to cover the shutter disk.
See also
Shutter (photography)
Shutter speed
Categories: Photographic shutters(and so on) To get More information , you can visit some products about Tire Pressure System, Auto Electrical Switch, . The Ducati 999 Carbon Cam Belt Cover products should be show more here!

About the Author

himfr can provide you most popular hot products from china!

So I have a technical question about cinematography?

So i am confused about this: is there any difference between shooting 16mm film in a Scoopic camera and shooting 16mm film in an arriflex sr?
Is the movie going to film better assuming that both cameras shot the same objects at the same time of day and with the same exposure, filters,etc?
Or the film in the arri is going to look better than the scoopic because arri is supposed to be a better camera?
I understand than in video the brand of the camera can make a difference, but in film the cameras are transporting the same kind of film. Why should the result be different? Please help me on this one. Thank you.

The biggest difference will be the lens- a good piece of glass is essential to good images. I've never used a scoopic- but it has a fixed lens I believe. Of course Canon is known for making good glass so it shouldn't be a huge deal, but the Arri can accommodate PL, Bayonet or C mount lens- so the SR can take really any lens in the world, so in addition to more options with primes/ zooms etc, you can find what's right for you're project.

Another issue might be the film transport- one thing that made the SRs so popular was their great engineering, which gave the film a smoother, less shaky look and was less prone to registry errors.

Some smaller issues might be camera noise- the SR is pretty quite, and maintenance- since the Arri is a professional cam, chances are your model has been serviced regularly by a licensed tech, since the scoopic was a more "prosumer" model- you might want to check the service records. One reason I hate shooting Super16- you always have a cam that's 30 years old and no clue as to whether its been taken care of properly.

All in all, the SR is a more professional cam that can be more easily modified with accessories to fit your shooting scenario, but I don't know if this will justify the extra rental cost.

If there's a huge difference in the cost, and you like the feel of the Canon, just use that- I doubt it will be a very noticeable difference, but that's why you always do a camera test.

Arri Matte Box Ray Shade 6.6x6.6 Aaton Arriflex Red One
pauljkeating Store RARE BARGAIN!!!! ONCE ONLY PRICE!! Here is an Arri Ray shade for Arri MB 14 and earlier 6.6 x6.6 Matte boxes, I have a 6.6x6.6 Arri 3 filters stage for sale in another auction, If your looking for one.

Thanks for visiting!