This mini flash is compact and portable, with a 2.5mm PC sync port. The flash index is GN20m, and the illuminating angle is Horizontal 60°, Vertical 40°. The adjustable lamp holder is suitable for both color and black-and-white photography, providing an ideal light source that can be used as an auxiliary light for photo shoots.

The specification of this product includes: 1. Adjustable lampholder 2. Hot shoe holder 3. Battery door 4. Testing switch 5. Hot shoe lock 6. Prepare indicator lamp 7. Power switch 8. In-phase jack

In terms of technology capability, the flash has the following features: 1. Flash index: GN20m (ISO100, DIN21) 2. Color temperature: 5600k (for sunlight) 3. Efficient illuminating beam: horizontal 60°, vertical 40° 4. Power: 1.5v double A battery (Not Included) 5. Back time interval: 7 seconds 6. Flash continuous time: 1/1000s (manual) 7. Size: 65×60×98mm 8. Weight: 100g

Regarding camera shutter adjustment, the flash is compatible with cameras that have either an inter-mirror shutter or a focal plane shutter. Cameras with an inter-mirror shutter can adjust to any speed, while cameras with a focal plane shutter can only adjust to the speed profile of "X" (generally 1/60s). Alternatively, you can adjust the speed according to your camera's instructions.

To use the flash effectively, follow these steps: 1. Determine the distance between the camera and the main subject using your eyes, and then find this distance on the upside of the exposure meter. 2. Find the photonasty of your camera from the first vertical line on the left of the exposure meter. The joint of these two lines will approximately indicate the aperture number. 3. You can calculate the aperture number using the formula: Index (GN) = aperture (F) × distance (L).

For example, if the photonasty is ISO100/DIN21 and the distance between the camera and the main subject is 5m, the aperture will be approximately F/4.

The flash is suitable for all ordinary digital cameras (such as 602, 717, 750, G3, etc.) and traditional cameras, except for Minolta and Sony anti-intercalation shoes. Even if your camera does not have a hot shoe, you can still use the flash successfully through the primer flash.

The flash offers a wide range of up/down ward angle adjustment, from 0 to 45, 60, 75, and 90 degrees.

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