adjustable from 1/8 to full power, and the FN-300 is fully adjustable from 1/16 to full power. When used with the 30"x 30" softboxes you will get almost shadowless light, that will wrap around your subject. No more harsh shadows. Now you can have 780 w/s of adjustable power at your finger tips. This lighting system will produce the f-stops you need. ***There are a lot of people selling photographic lighting and equipment on Amazon these days. Many claim to sell the finest equipment with the lowest prices and great warranties. What happens when you have warranty issues, do you have to send your equipment back to China for repair or wait weeks for a part? We have a full warranty service center and can repair or replace every item we sell for years to come. We ...  (less)

a 6 volt battery for the trigger circuit. (6V PX28 or 544 battery not included). It may be triggered by a built-in slave sensor or by sync cord. A 1/4-20 threaded socket allows convenient mounting on an optional bracket, light stand or tripod. Flash duration is from 1/500 to 1/8000 second. It includes an AC power cord and sync cord.  (less)

drive camera, or a remote power pack at great distances. Unlike other types of slaves, Radio Slave 4i cannot be overpowered by the light of a flash. Status lights on both Sender and Remote confirm proper operation and/or low batteries. This product is a frequency A Sender only.  (less)

full-function Qflash 5d-R's as remotes controlled totally from your camera's master flash menu. Qnexus supports all Canon and Nikon wireless flash functions from as far away as 100-200 feet! * Qflash 5d-R equipped with Qnexus gives you an additional 150 to 400 watt-seconds of beautiful, studio-quality lighting to dramatically expand your creative options. For example: make a great portable portrait set-up by using a Qflash in a softbox, or with an umbrella as your key light, and use your Canon or Nikon flash for fill. For those tricky large group photos, use multiple Qflashes for more lighting power, all controlled by a Canon or Nikon on-camera master flash. You can even mix remote Canon/Nikon flashes with remote Qflashes. You are not limited to the power of shoe-mount flashes! Get Qflash power, light quality and seamless integration with your Canon or Nikon wireless flash systems. *Maximum distance for direct line of sight may vary due to type of master flash or control unit used. Supports all dedicated Canon and Nikon wireless flash functions including Manual, Automatic, TTL and TTL-Ratio. Supports all dedicated Canon and Nikon wireless flash functions including Manual, Automatic, TTL and TTL-Ratio. Qflash portable flash units deliver 150 to 400 watt-seconds of studio quality lighting with no limit to the number of wireless Qflashes employed. Qnexus-compatible factory upgrades also available for Qflash 4d and 5d models."  (less)

on the first pre-flash they sense, but the digital camera will capture the image on the last flash. The Wein digital slave units are specially designed to only be triggered by the correct flash sensed by their built-in optical sensor and circuitry, thus solving the digital camera flash problem.Attach this slave directly to foot of any shoe-mount flash for direct connection, or connect a standard PC cord to the side mounted PC terminal.Features:Fully Compatible with Shoe-Mounted Preflash Systems Partially-Compatible with Built-In FlashesBuilt-in ambient light filter for outdoor useConstructed of aircraft aluminum and solid epoxy; virtually indestructible Integral 1/4""-20 threaded socket for tripod, monopod or light stand mounting PC terminal for use with non-shoe flash units"  (less)

""H""-prong or monoplug sync connector for direct connection to virtually any professional flash or power pack. All Ultra Slaves feature standard PC terminal as alternative sync connector."  (less)

control, backlighting and fill lighting. Ideal for interior photography! Their small size also makes them the ideal companion for compact point-and-shoot cameras, adding no extra bulk to your camera bag. Hide Morris Slaves anywhere in the picture. They offer endless possibilities for the imaginative photographer.Compact with hotshoe mount and PC cordHi-Low powerTriggered by your camera's flashDetachable wide-angle adapterSlave/Sync selectorReady lightTest Button  (less)

slave senses the light of the main flash and instantly fires the Super Slave.  (less)

for outdoor useConstructed of aircraft aluminum and solid epoxy; virtually indestructibleIntegral 1/4""-20 threaded socket for tripod, monopod or light stand mountingPC terminal for use with non-shoe flash unitsSame as HS but for digital cameras"  (less)