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<blockquote data-quote="BackdoorArts" data-source="post: 222068" data-attributes="member: 9240">Re: Noob question about flashesThe answer is &quot;Yes&quot;.&nbsp; Well, OK, the answer is that the camera has a TTL mode which will adjust the flash according to the metering.&nbsp; Your on board flash is TTL (provided you're operating in TTL mode - a setting in the menus), but can also be operated in manual mode.&nbsp; It's when you go to separate flash units that you need to be sure that the unit you buy is compatible with your camera.&nbsp; Nikon SpeedLights will be, of course, but with 3rd party units you need to be sure you purchase one that is Nikon compatible - just like you need to make sure a 3rd party lens comes with a Nikon and not a Canon mount.&nbsp; Most 3d party flash units that are specified for Nikon bodies will work as a TTL unit with your D3100, but it's always good to check manufacturer specs.&nbsp; They will usually have a Mode selector on the back that allows it to operate in TTL, where it communicates with your camera, as well as Manual mode in increments from full power down to 1/16 power and possibly less.</blockquote>

[QUOTE="BackdoorArts, post: 222068, member: 9240"] [b]Re: Noob question about flashes[/b] The answer is "Yes". Well, OK, the answer is that the camera has a TTL mode which will adjust the flash according to the metering. Your on board flash is TTL (provided you're operating in TTL mode - a setting in the menus), but can also be operated in manual mode. It's when you go to separate flash units that you need to be sure that the unit you buy is compatible with your camera. Nikon SpeedLights will be, of course, but with 3rd party units you need to be sure you purchase one that is Nikon compatible - just like you need to make sure a 3rd party lens comes with a Nikon and not a Canon mount. Most 3d party flash units that are specified for Nikon bodies will work as a TTL unit with your D3100, but it's always good to check manufacturer specs. They will usually have a Mode selector on the back that allows it to operate in TTL, where it communicates with your camera, as well as Manual mode in increments from full power down to 1/16 power and possibly less. [/QUOTE]

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