Opteka IF-500N TTL Dedicated Compact Flash with LCD Display and Protective Case for Nikon D850 D7500 D5600 D3400 D500 D5 D7200 D5500 D750 D810 D3300 D4S D5300 Df D610 D7100 D5200 DEDICATED - The Digitalmate 130N dedicated flash is a flash unit that fits into your camera's hot shoe. The dedicated flash is a great piece of gear that communicates with the camera. A dedicated flash is a far better tool than the built-in flash because of the versatility it gives you. AUTOFOCUS - The Digitalmate flash provides an independent AF assist. When a flash is mounted to the camera, the AF Assist option is enabled. The normal AF Assist light will not be used, instead the flashes autofocus assist system will take effect. TTL - The flash and ambient light are reflected by the subject through the camera lens and then metered by the camera's TTL metering system. The flash power is adjusted accordingly. A digital camera TTL flash system, often known as E-TTL, involves firing a pre-flash before the actual exposure QUICK SPECS - Full TTL dedication, Backlit LCD screen, Guide number: 130 ft. (40m), Power save mode, Auto temperature control (overheat protection), Fine brightness control, Metal hot shoe, Rapid recycle time (0.2-6 seconds), Works on 2 AA batteries, Memory function (retains previous setting after restart) COMPATABILITY - Nikon D1 D1X D1H D2H D2X D2Xs D2Hs D3 D3X D3S D4 D4S D5 D40 D40X D50 D60 D70 D70s D80 D90 D100 D200 D300 D300S D500 D600 D610 D700 D750 D800 D810 D850 D3000 D3100 D3200 D3300 D3400 D5000 D5100 D5200 D5300 D5500 D5600 D7000 D7100 D7200 D7500 Df Digital SLR Cameras