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DPChallenge Forums >> Hardware and Software >> Wireless SB-800 help needed
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09/28/2005 12:12:44 PM · #1
Hi, I recently bought one SB-800 flash. I want to use the flash by itself wirelessly. Do I need to buy the SU-4 to do this? If I buy that, will I need to mount another flash to my camera for it to work? Remember, All I want in one off camera flash to fire wirelessly, how do I do this? Thanks for any help!
09/28/2005 12:20:06 PM · #2
Not sure whether it works with all the cameras. It works great with my Nikon D70. Need to set the camera in commander more and the flash also needs to be set up appropriately. Might want to check your camera's manual.
09/28/2005 12:25:42 PM · #3
I believe that "SU-4" is more of a protocol than an actual device. In other words, I think that SU-4 is a way of triggering remote flashes, rather than something you buy.

I'm not an expert, so take all this for what it's worth...

If you set the SB-800 on SU-4, it should flash when it detects a flash from your camera's onboard flash. The tricky part is whether your camera fires off a "pre-flash," which could trigger your SB-800 prematurely. You'll want to be sure that your camera has the pre-flash turned off, if that's an option.

Message edited by author 2005-09-28 12:26:13.
09/28/2005 12:38:28 PM · #4
I own a D70 if that helps.
09/28/2005 01:13:59 PM · #5
On a D70 you set the camera to Commander mode on Custom Settiing 19. You set the SB 800 on iTTL or TTL. See page 150 of the D70 manual.
09/28/2005 01:25:06 PM · #6
Ok, I'm seeing results now! Here's how I've come along: I can get te D70 to fire its built in speed light and trigger the SB-800 wirelessly, but, the speedlight on the camera is affecting my lighting. Do I need the SU-4 to get the SB-800 to fire without relying on the cameras built in speedlight? I've heard about preflash, but I haven't found a way to make the D70s built in speedlight do a preflash. Thanks for the help so far!
09/28/2005 01:35:21 PM · #7
Here's some of the details I got from some website. If your camera is on Commander Mode/TTL(Custom Setting #19) then only the SB800 flash should fire. Remember to Pop up your camera flash otherwise the SB800 won't fire. Instructions for SB600 and SB800 are the same.

On your D70:

Press MENU. Go to the yellow wrench menu, and be sure CSM MENU is set to DETAILED. Otherwise you won't see the next setting!

Go to the CSM menu which looks like a purple pencil. Set #19, Flash Mode, to "COMMANDER MODE." Further click to the right to set the commander mode to "TTL."

You also may set the commander mode to Manual or AA, which are other modes to fire the remote flash. The SB-600 only works with TTL and Manual. You set the manual power level at the camera.

Don't forget to POP UP THE BUILT-IN FLASH!

On your SB-600:

Hold down ZOOM and "-" together to enter the CSM settings. That's why you see a gray "CSM" marking between those two buttons.

Press either the + or - buttons until you see an icon that looks like a wiggly Z-shaped arrow. This arrow refers to wireless communication between the flash and camera. When you see the wiggly arrow, press MODE to make it say ON.

Press ZOOM and "-" together to get out of the CSM mode. Even easier, just tap the power button to get back to normal operation. It won't turn off if you hit it while in the CSM settings.

Presuming you did this correctly you'll see "CHannel 3" and "GROUP A" displayed. If you see different channels or groups then press MODE to get one or the other to flash and then the + or - buttons to set them back to 3 and A. No, I have no idea why these are the settings you have to use instead of 1 and A; 3 and A are what you need to talk to the D70's built in flash. If you get smart and choose others then it won't work. The other channels and groups are for people much smarter than I who want to try to rig up a zillion flashes to work together and control them all separately and remotely. I prefer professional studio strobes if I'm using more than one strobe at a time.

The SB-600 doesn't go into standby in this mode, so you can run down your batteries if you forget and leave it this way. It just sits there blinking its little red LEDs visible from the front.

12/18/2005 01:22:16 PM · #8
Hello there, had the same problem with my SB 800 and therefore looked up this thread. The only problem is that I can not figure out what you mean when you say hold down zoom and "-" at the same time. I find the "-" alright, but which button do you mean by zoom?

Please help, I need to use it tomorrow
Thanks
Sandy

Message edited by author 2005-12-18 13:22:49.
12/18/2005 03:17:38 PM · #9
Originally posted by Sandymaya:

Hello there, had the same problem with my SB 800 and therefore looked up this thread. The only problem is that I can not figure out what you mean when you say hold down zoom and "-" at the same time. I find the "-" alright, but which button do you mean by zoom?

Please help, I need to use it tomorrow
Thanks
Sandy


On the SB800, it's a bit different. You press and hold the select button and then look throught the menu for the wireless option, and press and hold the select button again to exit the menu
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