Nikon D60BODY, D60OUTFIT, 25438 user manual 151, Optional Flash Units Speedlights, Guide Number

Optional Flash Units (Speedlights)

Nikon Speedlight SB-600

•The SB-600 is a high-performance flash unit with a guide number of 30/98 (ISO 100, m/ ft) (at the 35mm zoom-head position, 20°C/68°F).

•The flash head can be tilted 90° up, 180° to the left, and 90° to the right for bounce-flash or close-up photography.

•The SB-600 supports auto power zoom (24-85mm), ensuring that the angle of coverage is adjusted in accordance with lens focal length, and has a built-in wide-flash adapter that increases the angle of coverage to match that of a 14mm lens.

•The monitor and all buttons are illuminated to simplify operation in dark surroundings.

•Custom settings can be used to enable, disable, or adjust a variety of functions.

Nikon Wireless Remote Speedlight SB-R200

This high-performance wireless remote Speedlight has a guide number of 10/32 (ISO 100, m/ft, 20°C/68°F). Although it cannot be mounted directly on the accessory shoe, it can be controlled using an optional SB-800 Speedlight or SU-800 Wireless Speedlight Commander. The SB-R200 can be hand-held, placed on the AS-20 Speedlight Stand, or attached to the front of the camera lens using the SX-1 Attachment Ring for remote control and close-up i-TTL photography.

Nikon Wireless Speedlight Commander SU-800

The SU-800 can be used as a commander unit for wireless remote triggering of the SB-800, SB-600, or SB-R200 flash units. The SU-800 itself is not a flash.

DGuide Number

The guide number indicates the amount of light generated by the flash. The larger the number, the greater the flash output.

To calculate the range of the flash at full power, divide the Guide Number by the aperture. For example, at ISO 100 the SB-400 has a Guide Number of 21 m or 69 ft.; its range at an aperture of f/5.6 is 21 ÷ 5.6 or about 3.7 meters (or in feet, 69 ÷ 5.6 = 12 ft. 4 in.). For each twofold increase in ISO sensitivity, multiply the Guide Number by the square root of two (approximately 1.4). For example, when the SB-400 is used with the D60 at a sensitivity setting of ISO 200, the range of the SB-400, at an aperture of f/5.6 is 21 ÷ 5.6 × 1.4 = 5.3 meters, or 69 ÷ 5.6 × 1.4 = 17 ft. 5 in. (at ISO 200, 20°C/68°F, the angle of coverage is sufficient to light the picture angle of an 18mm lens).

Optional Accessories

151