Moving vehicle photographed in 2nd-Curtain mode, showing lights trailing behind

Selecting a Flash Mode

The flash mode selection determines how the flash is fired to achieve various effects.

Flash mode selections and features

Auto Flash

The camera automatically fires the flash at the appropriate intensity when shooting in dark conditions or against strong backlighting. In dark environments, the camera fires the flash as necessary to keep the shutter speed to 1/30 sec. or less (since exposures longer than 1/30 sec. are likely to be spoiled by camera shake). When shooting against a backlight, the camera fires the flash as necessary to adjust the brightness of the subject.

Slow Synchronization

When shooting a subject against an illuminated night scene with the flash, you may only capture the subject and the background may turn out black. To capture the background as well in this situation, you can select slow synchro for the flash control setting and adjust the shutter speed up to 2 seconds (for ISO 80) for the darkness of the background. However, if you use a slower shutter speed we recommend that you mount the camera on a tripod and ask the subject to remain still until the picture is taken. (At slow shutter speeds the picture could easily blur as a result of camera shake or if the subject moves while the shutter is still open.) The camera is in the 1st-curtain mode

when is not displayed, and the flash fires at the beginning of a slow shutter release.

The camera is in the 2nd-curtain mode when is displayed, and the flash fires at the end of a slow shutter release. In the slow synchronization mode with 1st-curtain selected, for example, if you were to photograph a moving car at night, the flash would fire at the beginning of the slow shutter release and capture the image of the car. In the picture you would see the headlights of the car appearing to flow ahead of the car in the direction of travel as only the headlights were captured for the remainder of the shutter release. If you were to select 2nd-curtain for the same picture, the flash would fire at the end of the slow shutter release and you would see the tail lights trailing behind the car because the vehicle was captured by the flash at the end of the slow shutter release. In order to use slow shutter release effectively, first set the mode dial to S (Shutter priority mode) and select a slow shutter speed.

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Olympus VT1621-01 manual Selecting a Flash Mode, Flash mode selections and features, Auto Flash, Slow Synchronization
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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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