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General| Brand | Nikon |
|---|---|
| Model | SB-21 |
| Category | Camera Flash |
| Language | English |
Details lens compatibility and usage restrictions for macro photography.
Identifies flash head parts like illuminator, switches, and adapters.
Introduces the two controller models and their main features.
Explains the function of the calculator dial and related controls.
Step-by-step guide for battery installation.
Instructions for mounting the controller onto the camera.
How to connect the flash unit to the lens adapter.
Adjusting camera shutter speed for proper sync.
Procedure for setting the exposure calculator dial.
Adjusting flash tube selection and manual output.
Setting controller to TTL and taking photos.
Steps to turn off the speedlight unit.
Guide to mounting the flash unit when the lens is reversed.
Detailed description of the AS-12 and AS-14 controllers.
Table showing camera compatibility with controllers.
Guide to setting camera shutter speeds for flash synchronization.
Explanation of the mode selector's TTL and Manual settings.
Detailed guide on using the exposure calculator dial.
Using the calculator dial for manual flash with reversed lenses.
Using the calculator dial for manual flash calculations.
Methods for calculating shooting magnification ratios.
Using formulas for calculating correct aperture values.
Adjusting exposure compensation in TTL mode for accurate results.
Adjusting exposure compensation in manual mode.
Explains the function and meaning of the ready light.
Indicates ready light behavior and warnings with SB-21A.
Indicates ready light behavior and warnings with SB-21B.
Ready light indications specific to SB-21B usage.
Explains overexposure warning and flash test button.
Instructions for using the SW-8 adapter for close-up shots.
Explains flash tube switching and the focus illuminator.
Details internal and external power sources.
Step-by-step guide for connecting and using the LA-2 unit.
Step-by-step guide for connecting and using the LD-2 unit.
Diagram of system configurations for TTL multi-flash setups.
Diagram showing connections for slave flash units.
Describes adapter rings for lens mounting.
Advises on storage, temperature, humidity, and water exposure.
Warns against disassembly, touching terminals, and recommends professional service.
Details warranty and repair service procedures.
Instructions for cleaning the speedlight and controller.
Guidance on battery selection, use, and storage.
Specific considerations for using Nickel-Cadmium batteries.
Graph for determining aperture with specific lenses.
Graph for determining aperture with reversed 55mm lenses.
Graph for determining aperture with 105mm f/2.8 lens.
Graph for determining aperture with reversed 105mm f/2.8 lens.
Graph for determining aperture with 105mm f/4 lens.
Graph for determining aperture with reversed 105mm f/4 lens.
Graph for determining aperture with 200mm f/4 lens.
Graph for determining aperture with 20-85mm lenses.
Graph for determining aperture with 100-200mm lenses.
Graph for determining aperture with 20-24mm reversed lenses.
Graph for determining aperture with 28-35mm reversed lenses.
Graph for determining aperture with 50-58mm reversed lenses.
Graph for determining aperture with 80-105mm reversed lenses.
Instructions for mounting the flash to the lens normally.
Using graphs to determine aperture for 60mm lens.
Steps to attach the flash to the 105mm lens normally.
Using graphs to determine aperture for 105mm lens.
Steps to attach the flash to the 105mm lens normally.
Using graphs to determine aperture for 105mm lens.
Steps to attach the flash to the 60mm lens normally.
Using graphs to determine aperture for 60mm lens.
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