Sunpak pz 4000 af инструкция

Some premium cameras offer the feature of a high shutter speed for X sync. This minimizes the chance of a "ghost exposure," one which is made not by the flash but by the existing light. Automatic Flash: an electronic flash that measures the amount of light which has gone to the subject and bounced back to the flash.

All dedicated flashguns set the camera to the one and only proper shutter speed for flash sync. Some also set the lens opening, on cameras which have automatic lens opening exposure systems. Multi-dedicated flashguns by companies such asVivitar, Sunpak, Rokunar, Achiever, etc, can be adjusted to provide minimal dedication with several different brand cameras.

In general usage, the phrase is used interchangeably with electronic flash. PC Cord: A connecting cord for the flash.

M Sync: a delay of. This allows old flash bulbs to reach their peak output. X Sync: a xero zero delay. When the shutter is fully open, the flash is triggered. This is what is needed for electronic flash. If you take a flash picture sunpak pz 4000 af инструкция the shutter speed set higher than the X sync speed, you get a picture that is partially blacked out.

It simply stops the flow of power from the capacitor to the flash tube, instead of wasting it by sunpak pz 4000 af инструкция it. This means that a thyristorized flash gun will recycle more quickly and give more flashes on a set of batteries before they run down.

In general, they will set the proper shutter speed, activate the readilight in the viewfinder, but will not set the lens opening. Some flashguns, such as the Minolta PX, do not have a built-in exposure sensor. They can only be used on specific cameras that have a built-in sensor for TTL flash. For example, the Minolta PX can only be used on the X and X cameras. Autofocus cameras usually have full dedication and also a built-in near-infrared light sunpak pz 4000 af инструкция that makes it easier for the camera to focus in low light levels.

Named for the Prontor-Compur shutterworks in Germany which developed the shape of the tip. Hot shoe: a flash mounting slot that has a central terminal so no cord is needed. Synchronization: the timing of a flashgun and a camera so that the flash is making the most light while the shutter is open.

It turns the flash off when enough light has been returned for a proper exposure. With an automatic flash, the photographer sets the lens opening once, according to a calulator built into the flash gun. For example, the flash may show that with ISO film, the lens should be set to f8. At all distances up to the maximum range of the flash, the flash will measure light returning from the subject and turn itself off when just enough light has been returned for a proper exposure at f8.

Recycle Time: how long you must wait after one flash before the flash is ready again. With a thyristorized flash the following choices make the flash recycle faster:. Fresh batteries or rechargeables. A TTL flash system uses a sensor in the camera to measure the flash Thru The Lens, which is more accurate when taking extreme closeups or using a long lens. Dedicated flashguns are designed sunpak pz 4000 af инструкция work with a specific late model camera or family of cameras.

The concept is similar to that of a toilet sunpak pz 4000 af инструкция, which fills itself to a present level and then stops the flow. Early and lower-cost automatic flash guns used a simple switching mechanism. Initially power from the capacitor goes to the flash tube. Thyristor: a special type of switching mechanism on an automatic flash which saves the energy not required during a short flash.

Failure to use a fully-dedicated flash wipes out many of the benefits of buying such a good camera.

Using flash off the camera. Electronic Flashguns use the controlled discharge of electricity in a flash tube to make a short burst of lightning. Because the duration of the light is short, it freezes action. Electronic flashguns use a battery or other power source to charge a capacitor. When the flash is triggered, the power in the capacitor is sent to the flash tube. Strobe: technically, stroboscopic light is a sunpak pz 4000 af инструкция light, such as an automotive timing light or a disco strobe.