Focal-plane shutters may also produce image distortion of very fast moving objects or when panned rapidly.

* Focal-plane shutters are mounted near the focal plane and move to uncover the film or sensor.

Focal-plane shutters are usually implemented as a pair of light-tight cloth, metal, or plastic curtains.

Focal-plane shutter top speed peaked at 1 / 16, 000 sec.

* Focal-plane shutter

Focal-plane shutter, low speed

Focal-plane shutter, high speed

< ol > < li > Camera lens < li > Reflex mirror < li > Focal-plane shutter < li > Image sensor < li > Matte focusing screen < li > Condenser lens < li > Pentaprism / pentamirror < li > Viewfinder eyepiece </ ol >

The houses lining the Nive are examples of Basque architecture, with half-timbering and shutters in the national colours of red and green.

To reduce the appearance of flicker, virtually all modern projector shutters are designed to add additional flicker periods, typically doubling the flicker rate to 48 Hz ( single-bladed shutters make two rotations per frame – double-bladed shutters make one rotation per frame ), which is less visible.

There are various designs for focal plane shutters.

These shutters are usually manufactured from metal, and use the same moving-slit principle as horizontally travelling shutters.

Vertical shutters became very common in the 1980s ( though Konica, Mamiya, and Copal first pioneered their use in the 1950s and 1960s, and are almost exclusively used for new cameras.

Nowadays most such shutters are manufactured from cheaper aluminium ( though some high-end cameras use materials such as carbon-fibre and Kevlar ).

Disadvantages of such shutters are their inability to reliably produce very fast shutter speeds ( faster than 1 / 500th second or so ) and the additional cost and weight of having to include a shutter mechanism for every lens.

* N3 plugs are used for remote shutters on their high-end Canon DSLRs.

Lenses offered for the S2 include Summarit-S in normal ( 70 mm ), wideangle ( 35 mm ), and macro ( 120 mm ) varieties, and Tele-Elmar ( 180 mm ) portrait-length telephotos ; these are available in versions that feature integrated multi-leaf blade shutters (" Central Shutter ", or CS ), in addition to the focal-plane shutter in the camera body, to enable higher flash sync speeds.

In Parikia town, houses are built and decorated in the traditional Cycladic style, with flat roofs, whitewash walls and blue-painted doors and window frames and shutters.

Leaf shutters, which are generally situated within the lens housing, open to expose the entire image at once, and therefore allow flash sync across all shutter speeds ( up to 1 / 1000 " with a Rollei PQS lens ).

Arriving at the store, he finds that the locks to the security shutters are jammed closed with chewing gum, so he hangs a sheet over them with a message written in shoe polish: " I ASSURE YOU ; WE ' RE OPEN.

The shutters of the swell are in line with the rest of the wall.

To ensure that the mixture exits to the rear, thereby pushing the aircraft forward, a series of shutters are used to close off the front of the engine.

The other difference is that the shutters are replaced by more sophisticated valves.

In some PDE designs from General Electric, the shutters are eliminated through careful timing, using the pressure differences between the different areas of the engine to ensure the " shot " is ejected rearward.

Most of the walls are made of shutters that can be manipulated by a person to allow a certain amount of light and air into the pavilion.

This is why FP shutters are seldom seen in cheap or low quality cameras.

Such shutters are significantly more costly than mechanical shutters.

Dual curtain FP shutters are self-capping ; the curtains are designed to overlap as the shutter is cocked to prevent double exposure.

In addition to its coachwork by Murray designed by their Amos Northup, the Royale also provided buyers with a straight-eight with a nine bearing crankshaft, one shot lubrication, and thermostatically controlled radiator shutters.

Other medium-format SLRs also using leaf shutters include the now discontinued Zenza-Bronica camera system lines such as the Bronica ETRs, the ETRs ' i ( both producing a 6 × 4. 5 cm.

Certain Mamiya medium-format SLRs, discontinued camera systems such as the Kowa 6 and a few other camera models also used between-the-lens leaf shutters in their lens systems.

A semaphore telegraph, optical telegraph, shutter telegraph chain, Chappe telegraph, or Napoleonic semaphore is a system of conveying information by means of visual signals, using towers with pivoting shutters, also known as blades or paddles.

Mr Gamble also proposed two distinct five element systems in 1795: one using five shutters, and one using five ten foot poles.

It is also the wood of choice for window blinds and shutters.

Semicircular rotary shutters also have the advantage of unlimited X-sync speed, but all rotary FP shutters have the disadvantage of the bulk required for the plate spin.

Revolving shutters must also rotate smoothly ; otherwise uneven exposure will result in ugly vertical banding in the image.

Similar technology FP shutters were also common in medium format 120 roll film cameras.

The Square's metal blades were also immune to the drying out, rotting and pinholing that cloth curtained shutters could suffer from as they aged.

Something similar is now also occurring with more sophisticated digital cameras that, in the past, would have used focal-plane shutters.

Earlier ( c. 1772 ), he also invented windmill ' Spring sails ', which replaced the simple canvas designs previously used with sails made from a series of shutters that could be operated by levers, allowing windmill sails to be quickly and safely controlled in the event of a storm.

From the 13th century, the merlons could also be used to pivot wooden shutters: these added further protection for the defenders when they were not firing.

The shutters ( also known as " mantlets ") could be opened by hand, or by using a pulley.

It was built in 1830 to plans by millwright Edward Ingeldew ( who also built, among others, Wragby tower mill in 1831, Waltham Windmill in 1837, and the former Pickworth tower mill ) for her first owner and founder Michael Hare of red brick, the outer walls being tarred ( provided with a black bitumen paint in order to successfully keep moisture out ), as a five-sailed windmill ( very similar to Alford Windmill ) with Sutton's single patent sails ( 15 feet tip-width and 12 feet heel-width ) providing longitudinal shutters on both sides of the backs ( 36 feet in length ).

His former summer home in Scituate also has shamrock shutters.

Holmes also discovers that it is possible to see what is happening inside the office from outside even when the iron shutters are closed.

A number of practices, such as shutters painted blue are also used to repel evil spirits.

It also has 35, 850 square feet of glass shutters, 58, 500 wooden shutters and 133, 500 cubic feet of wooden panels.

The term window blinds is also sometimes used to describe window coverings generically — in this context window blinds include almost every type of window covering, i. e. shutters, roller blinds, honeycomb shades, wood blinds, roman blinds and of course, standard vertical and horizontal blinds.

Insulation at these times was one of the biggest concerns for the building of these orangeries, straw became the main material used, also many had wooden shutters fitted to keep in the warmth.