The Fujifilm EF-42 External Flash is a hotshoe mount flash featuring a guide number of 42m at ISO ISO Exposure is controlled by three elements: Aperture, Shutter Speed and ISO. The ISO speed determines how sensitive a camera's sensor is to incoming light. A higher ISO speed absorbs more light, resulting in a brighter exposure, however, a higher ISO also results in more digital noise in low-light conditions. Cameras with larger sensors (like full-frame cameras) typically have higher ISO speed capability and produce less digital noise at high ISO settings. Digital cameras include a control for adjusting ISO speed, some of which can be set to adjust automatically in combination with certain other exposure settings. ISO is indicated in numbers usually starting at 100 and going upward (200, 400, 800, 1600 etc.) doubling in sensitivity each time. Most cameras also indicate 3rd stop intervals (100, 125, 180, 200 etc.)100 and has full TTL compatibility.
Perfect for use with Fujifilm mirrorless cameras.
The EF42 Shoe Mount Flash for FUJIFILM Cameras is a lightweight, portable on-camera flash with a 42 m guide number @ ISO 100.
It has auto zoom that automatically matches the focal lengthFOCAL LENGTHMeasured in mm, it is the distance from the focal point of a lens (its centre or curved mirror where light converges) to the plane of the image sensor (film) when an object is in focus. A shorter focal length lens sees a wider image and a longer focal length brings your subject closer. For example, a 15mm lens sees a very wide image and is perfect for landscape photography. Conversely, a 500mm lens sees a very narrow image, brings the subject much closer and is thus great for subjects that are far away, like a bird in a tree. With zoom lenses, its minimum and maximum focal lengths are indicated, for example, as 24-105mm. A zoom lens allows you to change the lens’ focal length, with shorter (wide-angle) and longer (telephoto) options, whereas a fixed focal length lens requires you to move back and forth to find the correct image composition. of the lens (24-105mm in 35mm format), and can be set for APS-C or full-frame 35mm use.
Light output is adjustable from full power all the way down to 1/64 power. ExposureEXPOSUREExposure is controlled by three elements: Aperture, Shutter Speed and ISO. Achieving the correct exposure is similar to collecting rain in a bucket, up to an optimum level. The rate of rainfall is out of your control (light), yet you can control these three factors: the bucket’s width (lens aperture), the duration you leave it in the rain (shutter speed), and how effective your bucket is in collecting rain (ISO). These three elements work together to control the amount of light per unit area, preventing underexposure (too dark) or overexposure (too bright), giving you a natural looking image. compensation of +/-1.5 EV in 1/2-stop steps helps you further refine your lighting.
The flash head rotates 90° vertically, 180° to the left, and 120° to the right for total flexibility in directing your light.
*It operates on 4x alkaline or 4x NiMH AA batteries. Batteries are not included.
42m at ISO 100 and zoom head position at 50mm
TTL and Manual
Remote Trigger Options
90° Tilt and 300° Swivel
Head Zoom Range
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