I'm trying to use my flashgun

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I'm trying to use my flashgun in wireless slave mode, triggered by the pop-up flash in my D5100, but simply can't find any instructions in the manual. Can you help?

Roly Carter

the D5100 doesn't have a facility to use the pop-up flash as a wireless master for triggering off-camera flashguns. However, some flashguns include an 'optical' slave mode, which generally works with the pop-up flash and flashgun in manual power mode. For Nikon flashguns, you might need to use the 'SU-4' mode, which also works with the SU-4 optical slave trigger module.      
For off-camera flash with the D5100, try using a curly extension cable, like the Nikon SC-28 (£75/$55), or a more sensibly priced third-party equivalent. This will enable automatic TTL flash exposures, rather than relying on manual power settings, and you won't need to use the camera's pop-up flash as an optical trigger, so it won't add to the lighting in the shot.


Off-camera flash is often preferable, as it gives a more natural, three-dimensional looking effect

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