Using Other Flash Units with the Camera

An external flash unit not designed for this camera can be connected to either the hot shoe or the synchro socket on the left side of the camera and used, provided that it meets the conditions described below. However, please remember that a generic external flash unit, unlike the dedicated FL-40 flash unit, cannot be used to control the intensity of the flash.

Requirements for other flash units used with this camera

1.Use a flash unit with an angle of illumination wider than the range of the camera.

The focal length of this camera is 35 mm~140 mm (1.3 in.~5.6 in.), calculated based on 35 mm film, and requires that the angle of illumination be wider than the focal length used. In order to use the full focal length area, over 35 mm is required. In order to bring into use the remaining portion of the illumination area, use an external flash with a wide adapter.

2.When using full flash, set the flash timing shorter than 5ms.

With a ring flash, or other flash unit with long flash duration, the shutter may close during the flash and part of the light might not be used in the exposure.

3.Do not attempt to any flash unit (other than the FL-40) which employs electronic flash control between the flash unit and the camera.

Setting a non-dedicated flash unit

1.Using auto flash (controlled by the external flash)

The intensity of the flash must be adjusted with the controls on the flash unit. The f/stop and ISO settings on the flash unit must match these settings on the camera. Depending on the shooting conditions, you may not be able to achieve satisfactory exposure. In this case, you will have to adjust the aperture values and ISO settings on both the camera and the external flash unit. Flash control settings performed on the camera are ignored by the flash unit.

2.If you want to set the guide number on the external flash, calculate the aperture value from the guide number, camera-to-subject distance, and the ISO setting.

Cautions about using external flash units other than the FL-40

Even when is displayed, an external flash not designed for this camera may fire for every shot. If you do not want the flash to fire, switch if off. If the flash continues to fire after the flash is switched off, disconnect the flash from the camera. Further, the intensity of such a flash must be controlled by adjustments on the external flash unit. The results in your pictures could differ, depending on the shooting conditions, type of external flash unit used, and the camera settings. Please understand that we cannot guarantee the performance of the camera and picture quality when a flash unit not designed for this camera is used.

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Olympus VT1621-01 manual Using Other Flash Units with the Camera, Requirements for other flash units used with this camera
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VT1621-01 specifications

The Olympus VT1621-01 is an advanced and versatile portable test instrument designed especially for professionals in the fields of engineering and maintenance. This device stands out for its ability to perform various measurements and is widely regarded for its precision and reliability.

One of the main features of the VT1621-01 is its comprehensive measurement capabilities. It can effectively measure voltage, current, resistance, and frequency, making it a multifunctional tool for troubleshooting and diagnostics. Its versatility ensures it caters to a wide range of applications, including electrical installations and maintenance tasks in industrial settings. The ergonomic design contributes to ease of use, allowing users to handle the device comfortably even during prolonged periods.

Technology-wise, the VT1621-01 incorporates cutting-edge digital signal processing (DSP) to ensure rapid and accurate measurements. This results in stable readings, even in challenging environments where interference might be present. Additionally, the device supports auto-ranging, which simplifies the user experience by automatically adjusting measurement ranges based on the detected input, thereby enhancing reliability.

The display of the VT1621-01 is another highlight, featuring a large, high-resolution LCD that presents data clearly and is easy to read, even in dimly lit areas. Backlighting options further enhance visibility, ensuring that users can operate the device in various lighting conditions. Moreover, its intuitive user interface is designed for quick navigation between functions, allowing specialists and technicians to focus on their tasks without unnecessary distractions.

Another significant characteristic is its robust build quality. The VT1621-01 is designed to withstand the rigors of daily use in field environments, with a durable casing that protects internal components from impacts, dust, and moisture. This reliability is vital for professionals who often work in demanding conditions.

In summary, the Olympus VT1621-01 is an exemplary measurement instrument characterized by its multifunctionality, advanced technology, easy-to-read display, and rugged design. It has become an essential tool for professionals who require precision, efficiency, and durability in their measurement tasks, solidifying its reputation as a trusted device in the market.
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