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Specifications
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Compatible Cameras
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E-TTL operation with all EOS digital SLRs; PowerShot G2, G3, G5, G6, and Pro1; and the following EOS film cameras -- EOS-1v, EOS-3, Elan 7N series, Elan 7 series, Elan II series, Rebel T2, Ti, K2, GII, G.
TTL operation with all other 35mm EOS SLRs, and Canon T90
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Guide Number
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190 (at ISO 100, feet) / 58 (meters); flash head at 105mm zoom setting
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Flash Coverage
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Flash head zooms automatically to cover 24mm to 105mm lenses (with a full-frame 35mm camera);
Automatic adjustment for lens conversion factor with EOS-1D Mark II and EOS 20D (camera requires firmware upgrade)
Wide-angle pull-down panel allows coverage with lenses as wide as 14mm (on a full-frame camera) -- full coverage not possible on EF15mm f/2.8 fisheye lens.
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Number of Flashes
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Approx. 100 to 700, with fresh AA-size alkaline batteries.
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Recycling Time
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Approx. 0.1 to 6 seconds, with fresh AA-size alkaline batteries
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Flash Range
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(At ISO 100, with 50mm f/1.4 lens at f/1.4) -- Approx. 1.6 to 98 feet / 0.5 to 30m
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AF Assist Beam
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Built-in; covers all focus points in EOS cameras with 1, 3, 5, 7, 9, or 45 AF points;
Distance range -- 2 to 32.8 feet (0.6 to 10m) at center; 2 to 16.4 feet (0.6 to 5m) at periphery
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Custom Functions
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Fourteen speedlite Custom Functions built-in; set on speedlite's LCD panel
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Power Source
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Four AA-size batteries -- alkaline, lithium, or rechargeable Ni-MH usable
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External Power Source
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External power supply -- compatible with Canon battery pack CP-E3, CP-E2, and Transistor Pack E
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Dimensions
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3.0 x 5.3 x 4.5inches /76 x 134 x 114mm
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Weight
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13.2 oz / 375g, without batteries (4 AA alkaline batteries add 3.5 oz. / 100g)
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