➤ NikonSB-910 Speedlight flash. 📊 Key Specifications – Nikon SB-910. 2.3 s (Ni-MH), 3.0 s (Oxyride), 4.0 s (Alkaline), 4.5 s (Lithium). Flash Duration 1/880 s (full) to approx. 1/38,500 s (1/128). Guide Number 34 m (111.5 ft) @ ISO 100; up to 48 m (157.5 ft) @ ISO 200.
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