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Specifications
Type Clip-on, TTL auto zoom flash unit with series control
Guide No.
(ISO 100)
(ISO 200)
Maximum 54 (ISO 100/m). In manual mode, seven-step adjustment from M1/1 to M1/64. The
focal lengths in the table below are for 35 mm single lens reflex cameras. (when using 35mm
format camera) *Wide-angle panel used
Focal Length (Zoom position)
85mm 70mm 50mm 35mm 28mm 24mm 20mm*
(M1/1) (=FULL) 54 50 45 39 35 32 21
(M1/2) 38 35 32 27.5 24.5 22.5 14.5
(M1/4) 27 24.5 22.5 19.5 17 16 10
(M1/8) 19 17 16 13.5 12 11 7
(M1/16) 13.5 12 11 9.5 8.5 7.5 5
(M1/32) 9.5 8.5 8 6.5 6 5 3.5
(M1/64) 6.7 6 5.6 4.6 4.2 3.5 2.4
Focal Length (Zoom position)
85mm 70mm 50mm 35mm 28mm 24mm 20mm*
(M1/1) (=FULL) 76 71 64 55 49 45 30
(M1/2) 54504539353221
(M1/4) 38 35 32 27.5 24.5 22.5 14.5
(M1/8) 27 24.5 22.5 19.5 17 16 10
(M1/16) 19 17 16 13.5 12 11 7
(M1/32) 13.5 12 11 9.5 8.5 7.5 5
(M1/64) 9.5 8.5 8 6.5 6 5 3.5