Nikon SB-27 Using an external power source, Available external power source optional See

Using an external power source

Nikon DC Unit SD-7 or SD-8/8A can be used as an optional external power source supplying long and stable power, increasing the number of flash firings, and providing faster recycling time. To use a DC Unit, connect its power cord to the SB-27's external power source terminal.

—Even when powered with a DC Unit, the SB-27 still requires batteries inside the flash unit. Do not remove the batteries.

Available external power source (optional) See page 78.

Batteries		Min. recycling	No. of flash/ recycling
		time* (approx.)	time (approx.)
External power	C-type alkaline-	2.5 sec.	500 times/2.5–30 sec.
source SD-7	manganese (x 6)
External power	AA-type alkaline-	2.5 sec.	350 times/2.5–30 sec.
source	manganese (x 6)
SD-8/8A**	AA-type NiCd	1.8 sec.	150 times/1.8–30 sec.
	(x 6)

*Data measured with fresh batteries.

**Install the same type of batteries in the SB-27 and SD-8/SD-8A.

Use only Nikon-approved external power source units. Using external power sources other than those specified by Nikon may cause unexpected damage to the Speedlight.

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