User manual NIKON SB-25

[. . . ] Autofocus Speedlight Instruction Manual E FOREWORD Thank you for purchasing the Nikon Autofocus Speedlight SB-25. Used with Nikon's newest SLRs (F90-Series/N90, F4-Series, F-801/N8008, F-801s/N8008s, F-601/N6006, F-601M/N6000, F-401x/N5005, F-401/N4004 and F-401s/ N4004s), it offers you the most advanced and complete system for automatic flash photography available. To get the maximum performance from your new SB-25, be sure to take time to read the instruction manual carefully. For Effective Use of This Manual Using this manual is simple. Read the pages with shaded index tabs indicating your camera name. [. . . ] Shooting indicator bars in the LCD panel move as the figure input changes. 4 Zoom-head position Caution Use the SB-25 exclusively for on-land conditions; it cannot be used in underwater conditions. Always keep the unit away from salt water, rain or water splashes. 76 77 Chapter 3 TTL Auto Flash Confirm Settings Firing Flash Mode: For FA, FE2, FG and Nikonos V Users 7 Set aperture in use. For instruction, see "Setting Aperture Value (Manual Adjustment), " pages 28 to 29. Shooting indicator bars in the LCD panel move as the figure input changes. Determine approximate flash-shooting distance range by reading indicator bars. 8 Look into camera viewfinder, compose and lightly press the shutter release button. Confirm ready-light has come on and subject is in focus. Check if ready-light is on in camera's viewfinder or on the SB-25 . 9 10 Fully depress the shutter release button to fire flash. Recheck ready-light to see if it is blinking. If ready-light blinks for a few seconds after shooting, flash has fired at its maximum output but the light may have been insufficient. Reconfirm shooting distance and, if necessary, move closer to subject or select a wider aperture (in aperture-priority auto or manual exposure mode) to compensate underexposure. Quick reference on relationship between usable apertures and flash shooting distance Use table on page 142 in this instruction manual. 78 79 Chapter 3 Non-TTL Auto Flash Mode -- Shooting with Various Lens Apertures Set Up and Practice To use various lens apertures for the same subject or when camera/lens combination is incompatible with TTL Auto Flash mode, set the SB-25's flash mode selector to for Non-TTL Auto Flash operation. In Non-TTL Auto Flash shooting, light output automatically changes to match the flash-to-subject distance, but instead of light being measured through the lens, it is measured by the light sensor on the front of the SB-25. The SB-25 can be used in Non-TTL Auto Flash mode with any Nikon camera/lens combination. Before proceeding: ATTACH SPEEDLIGHT TO CAMERA. USE APERTURE-PRIORITY AUTO OR MANUAL EXPOSURE MODE. USE SINGLE-SERVO AUTOFOCUS (S or A) OR MANUAL FOCUS (M). 2 Flash sync mode selector at NORMAL 1 Flash mode selector at Non-TTL Auto 1 * Choose position (flash mode selector). Choose position (flash sync mode selector*). 3 ISO film speed in use and zoom-head position 2 3 position is used for Rear-Curtain Sync Flash, and only with the F90-Series/N90, F4Series, F-801/N8008, and F-801s/N8008s. For details, see page 105. 4 Aperture value Set ISO film speed and position the built-in zoom head. For instructions, see "Setting ISO Film Speed (Manual Adjustment), " pages 27 to 28, and "Setting Zoom-Head Position (Manual Adjustment), " pages 29 to 30. 4 Set desired aperture in the SB-25's LCD panel, then set again on the camera. For instructions, see "Setting Aperture Value (Manual Adjustment), " pages 28 to 29. Indicator bars show a appropriate shooting distance range. APPLICABLE NIKON SLR MODELS F90-Series/N90 F4-Series F-801/N8008 F-801s/N8008s F-601/N6006 F-601M/N6000 F-401x/N5005 80 F-501/N2020 F-301/N2000 F-401/N4004 F-401s/N4004s FA FE2 FG Nikonos V F3-Series F2-Series FM2 FG-20 5 Appears when flash is fully charged and ready to fire. Blinks after firing indicates possible underexposure. 81 Chapter 3 Non-TTL Auto Flash Mode F90-Series/N90's viewfinder 5 Push button for a test firing (see page 110) when you are not sure whether subject is within the flash shooting range. If ready-light blinks for a few seconds after test firing, flash has fired at its maximum output but light might not have been sufficient. Select a wider aperture or move closer to subject. 6 Look into the camera viewfinder, compose and lightly the press shutter release button to confirm that subject is in focus. Check that ready-light is on in the camera's viewfinder or on the SB-25 . 7 8 Fully depress shutter release button to fire flash. [. . . ] Note: Data for light output at 1/1 (full), no use of AF assist LED and LCD panel illuminator. Flash exposure control: Four flash modes are provided -- TTL, A, M and Repeating Flash TTL mode : Used with F90-Series/N90, F4-Series, F-801/N8008, F-801s/N8008s, F-601/N6006, F-601M/N6000, F-401x/ N5005, F-501/N2020, F-301/N2000, F-401/N4004, F-401s/N4004s, FA, FE2, FG and Nikonos V. Usable aperture range in TTL mode: f/1. 4 to f/22 (at ISO 100). 140 Shooting distance range in TTL mode: 0. 6 -- 20m (2 -- 66 ft. ). A mode : For Non-TTL Auto Flash operation, light is measured via light sensor in front of the flash unit. Usable apertures in A mode: f/2, f/2. 8, f/4, f/5. 6, f/8 and f/11 (at ISO 100) Shooting distance range in A mode: 0. 6 -- 20m (2 -- 66 ft. ). [. . . ]