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Slave unit
A flash accessory, also known as a slave cell thats used to fire another flash remotely so that multiple flash set ups can be arranged without cables and all synchronised with the cameras shutter.


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Slave unit
Techniques Glossary Slave unit
A flash accessory, also known as a slave cell thats used to fire another flash remotely so that multiple flash set ups can be arranged without cables and all synchronised with the cameras shutter.

Flash Slaves and Off-Camera Flash
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Placing a flash remotely and fired in sync with your exposure using a slave lets you place light exactly where you want it.

Slave flash
A slave flash is triggered by the firing of your main flashgan. It has a light sensitive receptor. A slave flash can be used some distance away from the camera, either to provide a second source (and direction) of illumination or to simulate a 'torch' held by a diver.

~ unit
A light sensitive trigger device used to synch strobes and flashes without an electronic synch cord. Accessory flash "~" units are available to fire multiple flash units without multiple electrical connections to the camera.

~
A photo-electric cell which fires additional flash units simultaneously when it is activated by the light from another flash source set by the camera.
Slide
A photographic trannie (positive) mounted for projection (usually 35mm).
(See Trannie & 35mm) ...

~ Unit
Accessory flash "~" units are available to fire multiple flash units without multiple electrical connections to the camera. These units sense the light output of the first flash, which is mounted in the camera hot shoe, or cord-connected to the camera.

~ UNIT - A light-sensitive triggering device that is built in or attached to an electronic flash unit, causing the flash to fire simultaneously with another flash unit. Also called a "photo ~." ...

~
A flash unit that is triggered to fire by the light output from another flash unit (the master flash).
Sketch filters ...

~ Capabilities
Many modern pack systems and most (all?) modern monolights include an optical sensor that will trigger the unit when another flash goes off.

~ STROBE- If a camera does not have a flash sync socket or a hot shoe and you wish to use an auxiliary strobe light, you can get a ~ strobe. This is a strobe light that has an electronic eye that senses when another strobe goes off which then sets off the ~ strobe.

~ Sensor: A device with a photocell that triggers a flash unit when it senses light from another flash unit. The light from both flash units with be synchronized with the camera.

~ flash-See radio ~ flash.
slide-A photographic transparency (positive) mounted for projection.
soft focus-Produced using a special lens that creates soft outlines.

~ flashes.
~ flashes are simply self-contained flash units which respond to external triggers of some kind. They're frequently used in studio situations.

~ unit. An accessory flash unit that supplements the main flash, usually triggered electronically when the ~ senses the light output by the main unit.
Slide. A photographic transparency mounted for projection.

~ Unit (Electronic Flash)
A unit that, like a perfect assistant, responds in a flash to the Master.
Slow Motion (video and film)
The stretching of real time for technical or lyrical reasons. See: Frame Rate.

As ~s. A strobe can have an external sensor that reads when the camera's flash goes off, and that burst of light can trigger the ~ strobe to fire.

PHOTO ~ - Also called a "~ unit." A light-sensitive triggering device that is built in or attached to an electronic flash unit, causing the flash to fire simultaneously with another flash unit.

Use a ~ flash
A ~ flash is detached from your camera and can be hand-held or set down anywhere. Some models will work with any camera and will trigger when it senses the camera's flash.

Flash, ~. A flash that fires when it senses the light from another flash unit.
FlaspPix. An image format that contains a number of resolutions, each of which is broken into tiles that can be edited and displayed independently.

~ flash - Meaning flash that isn't on the camera but is activated as a reaction to another flash. The firing mechanism is a reaction to the light emitted from the other flash or through a wire/wireless connection in more advanced flashes.

Optical ~s
Here's another alternative to expensive wireless transmitters. Optical ~s attach to flashes and cause them to fire at the exact same time as another flash. Well, not exactly the same time, but close enough that it doesn't matter.

~ Units
If you have one or more external flash units, you can make them into mini strobes using remote flash triggers. One of these inexpensive devices (some flash units have them built in) make any flash into a ~ unit so it fires when it senses another flash firing.

~ unit - mechanism which fires other flash sources simultaneously when a photo-electric cell is activated by the illumination emitted by a camera linked flash.
Slide - alternative term for a projection transparency.

A ~ unit is a flash that is not actually a part of the camera. It is not internal and it is not connected in the hot shoe. They often have an optical sensor that triggers the flash when the flash on your camera fires.

He ~d away for AT&T, PG&E, Life, and Fortune. He's pretty clear about his complaints with this sort of work. He shot for money since he was a teenager, starting in 1920 shooting class photos. He ran ads in 1940 offering to make photos and offer private instruction.

Master and ~
Professional photographers often set up flashes all around a subject to achieve better lighting effects. In this arrangement, one master flash may be triggered by the camera shutter, while other flashes are triggered by the master.

Consumer ~
Exactly, and there will always be the need for someone to design those functional and practical clothes to ensure they are functional and practical.

Light-actuated ~s are the smallest, least expensive, and most bulletproof of all ~ units. With no moving parts, and, in most instances no power source or sync cords required, they are often encased in a hard clear resin and can be run over by a truck (but not a steamroller) and still work.

A sensor, either built-in or external to a remote ~ flash unit, will sense the light from the master flash and cause a remote flash to fire.

By the way, optical ~s such as I mention in the article have one limitation. If you are photographing your toddler at an event like a birthday party and other people are popping their flashes, be aware that every time one goes off, your ~d flash will too.

The flash units can be auxiliary flash units, connected to the camera by extension cords, or they can be ~ flash units. ~ units usually have self-contained power sources and are fired with a photoelectric cell when light from a master flash unit strikes the cell of the ~ unit.

A wireless master/~ flash outfit would really simplify the setup for this kind of work. For most of the bellows setups I positioned the flash units fairly close to the subject and used TTL flash metering.

If you don't have a hot shoe, a ~ flash would be an alternative. These fire the flash when they sense another flash nearby going off.

I became a ~ to autofocus. A family on vacation asked me to take some pictures of them in front of an old monument with their manual focus camera. Mom, dad, and the kids posed nicely and smiled while I shot a few frames. After they left I realized I had forgotten to focus the lens! ...

In Program Mode, you accept the role of technological ~ and the camera selects both the shutter speed and the aperture for you. It is often called the green mode because it's frequently marked by a green "P" on the mode-selector dial.

The nice thing about this system was that photographers could hook up multiple flash units which would ~ themselves to the master flash. This system went a step further by allowing individual TTL adjustment of all connected ~s.

In wireless mode, the FL-600R has a built-in commander function to remotely fire other wireless flash units without firing itself, but it can also be used as a ~ flash, controlled by a camera's built-in flash or by another commander unit.

I am currently using an old Vivitar flash I got back in the early 80's, attached to a hot shoe flash ~. The function of the ~ is to trigger the flash when a second one mounted on my camera goes off. The one I have is like this Hot Shoe Flash ~.

These are triggered usingfibre-optic cables and a ~ system, actuated by the camera’s own internal flash. They give a slightly increased range, up to a metre or so, but the main reason to use them is to be able to move the flash away from the axis of the camera lens.

This can be accomplished through the use of cables and two/three-way adapters or "~ units." A ~ is a compact device that connects to a flash and fires it when it detects a flash of light from another flash-gun.

a '~' system), or you can physically hook them up to your camera's hotshoe with a cable. If you're looking for the cheapest solution, go with a cable.

Edit and choose the photograph that works best for the product.
Use a flash-~ to trigger a multiple-light setup. The ~, attached to other independent flashes or lights, will fire them the same time the camera's flash is triggered.

Don’t think only large strobes but small system strobes with an array of small ~ strobes. My favorites are made by Morris.

ID2Office converts InDesign files (CS4, CS5, and CS5.5) to Microsoft Word/PowerPoint 2007-2011 file type without losing the layout you ~d over. Recosoft says that the ID2Office conversion engine can handle fonts, styles, linked frames, tables, and graphics.

1. You shall not tether your camera to your strobe when you can use a radio ~.
2. You shall not break your back with heavy equipment as long as you can get the job done with lighter equipment.
3. You shall not use big lights when a small strobe can get the job done.

More and more flash accessories are hitting the market as more photographers turn to multiple ~ flash units instead of the larger old-style flash units. In a crowded field, ExpoImaging is proving themselves to be a leader in products that are easy to use, reasonably priced, and highly effective.

I surround the set with two or three inexpensive, ~-activated units to light the background and subject equally. I dim the room lights, open the shutter for three to five seconds, squeeze a drop into the receiving dish, and pop one of the flashes manually, which causes all to fire in tandem.

~ units can also be divided into two groups and the ratio between them set. Like its predecessors, there's also control for compatible Speedlites mounted directly to the hotshoe, allowing you to adjust the compensation, bracketing, sync, zoom and wireless options without touching the flash.

There are lots of ways to trigger a flashgun that isn't mounted on the camera. You can use the on camera flash and a ~ module fitted to the flashgun which detects when the on camera flash fires. You can use a cable that connects the camera to the flash or you can use remote triggers.

If you have a diagram with measurements of how far away from background all the lights should for a two softbox and one ~ light - that would be so helpful. My room size is 14'9 x 14'9. I have dark burgundy walls and can't paint them. Is this ok?
Anonymous
flash ...

Thanks for the informative website! I'm going to Mombasa next week and was struggling to get my new camera and ~ flash working to get any good pictures! Now I'm armed and raring to go - Thanks!
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~ flash
slow sync
SLR - "Single Lens Reflex."
snoot - a tube or cone attached to a lamp or flash unit to restrict the light, producing a spotlighting effect.
soft box - a diffuser built around the bulb of a photographic lamp, used to soften the light.

The latter allows you to use the built-in flash to trigger studio strobes in ~ mode (it appears to fire at full power, crucially with no metering pre-flash).
AF/MF
Focus Mode
...

-Photo-transistor - light sensitive electronic component which functions as a switch. Used for ~ firing of electronic flash heads.

Strobe power output, model light output, on/off for the model light, on off for the internal ~ and power, and not every strobe has all of these. The most important control is strobe power output; on some strobes this is the only control! ...

Pre-Flash - Some digicams use a low-power flash before the main flash to set the exposure and white balance. This does not allow the use of a normal photo ~ strobe as it will be triggered by the pre-flash.

Best way for illumination is with a couple of flashes, the first one on camera hot shoe faced to a white card and the second one (an ~ unit) faced to another card on the opposite side.

See also: See also: What is the meaning of Light, Subject, Lens, Time, Stand?

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