Nikon D3400 Reference Manual - English - Page 282

D The Built-in Flash The built-in flash can be used with lenses with focal lengths of 18-300 mm, although in some cases the flash may be unable to entirely light the subject at some ranges or focal lengths due to shadows cast by the lens (see the illustration below), while lenses that block the subject's view of the red-eye reduction lamp may interfere with red-eye reduction. Remove lens hoods to prevent shadows. Shadow Vignetting The flash has a minimum range of 0.6 m and can not be used in the macro range of macro zoom lenses. The flash may be unable to light the entire subject with the following lenses at ranges less than those given below: Lens Zoom position AF-S DX NIKKOR 10-24mm f/3.5-4.5G ED AF-S DX Zoom-Nikkor 12-24mm f/4G IF-ED AF-S NIKKOR 16-35mm f/4G ED VR AF-S DX NIKKOR 16-80mm f/2.8-4E ED VR AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR AF-S Zoom-Nikkor 17-35mm f/2.8D IF-ED 24 mm 24 mm 35 mm 24 mm 35-80 mm 24-85 mm 28 mm 35 mm Minimum distance without vignetting 1.5 m/ 5 ft 1.0 m/ 3 ft 4 in. 1.0 m/ 3 ft 4 in. 1.0 m/ 3 ft 4 in. No vignetting No vignetting 1.0 m/ 3 ft 4 in. No vignetting 258 Technical Notes