Why doe the SB-600 flash fire three pre flashes before the photo gets taken? This only seems to happen on manual mode. Also the battery closing clip on the flash seems to be messing around, because the flash will just go off at times, only to come back on after pressure has been applies to the battery clip.
I am doing a school function in 2 days and I need help ASAP!?
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1 - Make sure you don't have your diffuser screen pulled down. This is easy to overlook and will produce that effect.
2 - Reset your flash - hold down the "Mode" and "On/off" button together for a few seconds. This gets you out of any funky mode you could have accidently put yourself in
3 - Put camera in fully auto mode. That clears any weird modes you could have gotten into there
4 - Clean the contacts on the flash and camera. I use a pencil eraser and wipe with alcohol and paper towel. Dirty contacts can cause flash misfire or cause full flash during the preflash mode, which gives you dim or dark photos or sporatic flash operation.
It sounds like you're trying to use the SB-600 off camera, as a slave flash. While the SB-600 does indeed have slave capability, the D40 does not have the ability to function as a commander. Thus, the SB-600 is being triggered by the D40's pre-flash.
As stated above, the D40 does not function in commander mode. You can mount an SB-800 or SB-900 flash unit, which will function as a commander as well as a flash. Or you can mount an SU-800 commander unit.
Alternatively, you can switch the D40 to manual flash mode so as to eliminiate the preflash. However, you will then have to calculate the proper exposure yourself.
Hi Frank, I use the same combination of the exact three flashguns you have. Works beautifully. I mount the sb-800 on my camera and set it to Master Mode (press and hold the center button till the menu comes up, select the master). Set the other two sb600s as slave. Please make sure the channel is set the same in all three flashes... when positioning the slave flashes, make sure that sensors on the remote will recieve the light from the main flash. For maximum coverage I use the sb-800 with a diffuser in bounce mode. You will be amazed at the quality of interior phots you can get with a 3 flash combo.
1) i-TTL: TTL flash control by 1,005-pixel RGB sensor, built-in flash, SB-800, SB-600, SB-400: i-TTL balanced fill-flash and standard i-TTL flash 2) AA (Auto Aperture-type) flash: Available with SB-800 used with CPU lens 3) Non-TTL Auto: Available with Speedlights such as SB-800, 28, 27, and 22S 4) Range-priority manual flash; available with SB-800
You probably haven't changed the camera and/or flash back to TTL mode from wireless mode. Make sure they are both set to TTL, not commander mode and you should be fine. Note that the LCD on the flash will indicate which mode it is with a little graphic. On the D70 you had to switch between TTL and Commander mode to set it up to work using the built in flash as the commander, so you just have to switch back.