User manual NIKON SB-30

[. . . ] · Avoid touching the front of the flash head while using the SB-30. The flash head generates significant heat during normal operation, which could cause burns. · Do not expose the SB-30 to water as this may result in electric shock or cause the unit to catch on fire. Determine which group your camera belongs to. In this manual, Nikon SLR cameras are divided into seven groups (I to VII) unless otherwise noted. [. . . ] The higher the number, the shorter the flash firing interval. 53 Repeating Flash " Mode For cameras in all groups Camera settings 3 Set the exposure mode to Manual (M). 4 Set the aperture. --For cameras in Groups I and II with Nikkor lenses with a built-in CPU: Change the aperture on the camera as you watch the indicator bar ¡ on the LCD panel change to match the shooting distance. --For other camera/lens combinations: Press the { or } button to change the aperture on the LCD panel. Then set the same aperture on the lens aperture ring. The indicator bar ¡ shows a flash shooting distance in which the correct exposure can be obtained with a single flash firing. 5 Set the shutter speed. --Use the equation to determine the shutter speed. Number of flashes per frame Shutter speed = -------------------------------- Frequency of flashes (Hz) For example, if the number of flashes per frame is 10 and frequency is 5 Hz, divide 10 by 5 to get a shutter speed of 2 sec. --Or you can set the shutter speed to B (bulb) to accommodate any number of repeating flashes. for the ready-light come on 6 Wait focus before takingtothe picture. and make sure the subject is in --Press the ~ button to make sure the flash fires correctly as set. · In the Repeating Flash Mode, use a tripod to prevent camera/flash shake. Allow the SB-30 to cool off for at least 10 minutes after 10 sequences of repeating flash. 54 Exposure compensation in Repeating Flash Mode The flash shooting distance calculated in step number 4 is the correct exposure for the first flash in the sequence. Therefore, repeating flash at this flash output level will result in overexposure of the overlapped images. To prevent this, use a smaller aperture. NOTE Use fresh or fully charged batteries when performing repeating flash. Allow enough time for the flash to recycle between each repeating flash. 55 Guide Numbers for determining correct aperture in Guide numbers help you determine a correct exposure or proper aperture (f/stop) when using the SB-30 in the Manual or Repeating Flash " mode. · See page 51 for % guide numbers. The guide number represents the amount of light (ISO 100: for m/ft) generated by the flash. With the SB-30, you can calculate a correct aperture by using the following equation and the guide number table. To calculate the correct aperture: Guide number (GN) f/stop (aperture) = ---------------------------- Flash shooting distance (m/ft) To calculate the shooting distance: Guide number (GN) Flash shooting distance (m/ft) = -------------------- f/stop (aperture) Guide numbers (at ISO 100: for m/ft at 20 C/68 F) in and " modes Flash output level 1/1 (full) 1/2 1/4 1/8 1/16 1/32 1/64 Zoom-head position 18mm 18/59 20mm 20/66 24mm 30/98 21/69 15/49 28mm 35mm 50mm 70mm 85mm 32/105 36/118 42/138 48/157 50/164 22. 5/74 25. 5/84 30/98 16/53 18/59 21/69 34/112 36/118 24/79 17/56 25/82 18/59 12. 7/42 9/30 6. 3/21 12. 7/42 14/46 9/30 6. 4/21 4. 5/15 3. 2/10 2. 3/8 10/33 7/23 5/16 3. 5/11 2. 5/8 10. 5/35 11. 3/37 12. 7/42 15/49 7. 5/25 5. 3/17 3. 8/13 8/26 5. 7/19 4/13 9/30 6. 4/21 4. 5/15 10. 5/35 12/39 7. 5/25 5. 3/17 8. 5/28 6. 0/20 · Guide number varies with film speed. · For F4 cameras with a High-Magnification Finder DW-20 or DW-21, use the optional TTL Remote Cord SC-24. Camera settings the exposure 2 SetManual (M). mode to Aperture-priority auto (A) or --For cameras with VARI-PROGRAM or SIMPLE mode, close-up flash photography is easy by setting the camera to the Close-Up mode. 3 Set the aperture. ISO film speed Coefficient* --Calculate the aperture (f/stop) by using this equation and table. coefficient f/stop = ------------------------ flash-to-subject distance 100 or lower 4 (13) 125­400 8 (26) 500 or higher 11 (36) ISO film speed and coefficient *Numbers in parentheses ( ) represent coefficients in feet. For example, with a subject 0. 5m (1. 6ft) away using ISO 100 film and the wide flash adapter in place, the suggested aperture is: 4 f/stop = ---- (in meters) = 8, 0. 5 13 f/stop = ---- (in feet) = approx. 8 1. 6 Therefore, you should use f/8 or a smaller aperture, such as f/11. 62 Flash settings 4 Set the flash mode. --Press the µ button until t appears on the LCD panel. 5 Position the built-in wide flash adapter over the flash head. · Refer to page 21, Setting the built-in wide flash adapter. the 6 Adjust lens zoom-head position to 18mm or 20mm regardless of the focal length in use. 63 Close-up flash operation in TTL Auto Flash t Mode 7 Move the SB-30 off axis, making sure the subject will receive sufficient illumination. · In 3D Multi-Sensor Balanced Fill-Flash mode with cameras in Group I, you may not be able to obtain correct exposure because distance information from the lens (D-type Nikkor) is used. In this case, position the camera and SB-30 at equal distances from the subject. for the ready-light come on 8 Wait focus before takingtothe picture. and make sure the subject is in · If the ready-light blinks for approx. 3 seconds after shooting, this indicates the light may have been insufficient for correct exposure. In this case, use a wider aperture or move closer to the subject. · Correct exposure cannot be obtained if the subject is predominantly black or white or contains a highly reflective surface. In that case, make exposure compensation according to the shooting conditions. (See pages 71-75, Exposure compensation in flash photography, to ensure correct exposure. ) 64 Multiple flash operation in t and flash modes To eliminate harsh, directional shadows produced by a single flash unit or to add additional illumination to the background, you can attach additional Nikon Speedlights in series. Flash shooting with more than one unit Flash shooting with one flash unit For multiple flash operation with the SB-30, both TTL Auto Flash t and Manual Flash modes are possible. · Multiple flash operation in TTL Auto Flash t mode is possible with cameras in Groups I through VI and F3-Series cameras. [. . . ] number of flashes/ recycling time (approx. ) 200 times/6 sec. 200 times/2-30 sec. 3. 5 sec. 2 sec. Power Bracket SK-6/ 6A*** 2. 5 sec. 2. 5 sec. 200 times/2. 5-30 sec 350 times/3. 5-30 sec. 300 times/4. 5-30 sec. * With fresh batteries ** With AA-type alkaline-manganese in the SB-30 ***With same type of batteries in both the external power source and the SB-30 · Above data may vary depending on the performance or type of batteries. 93 Specifications Number of flashes and recycling times at full output (with batteries installed in the SB-30) Batteries 4 AA-type alkalinemanganese 4 AA-type NiCd (700 mAh) Min. [. . . ]