การแนะนำ
The Bower SFDRF Digital Macro Ring Light Flash is designed to provide convenient and creative lighting for various close-up photography applications, including documents, medical subjects, dental work, nature, and small objects. This unit utilizes a circular light source to deliver even, shadow-free illumination, which is particularly beneficial at short working distances where built-in or conventional flash units may be ineffective. Its two-piece design ensures ease of handling and camera balance, making it a versatile tool for both digital and 35mm SLR cameras.
เนื้อหาแพ็คเกจ
ตรวจสอบว่ามีรายการทั้งหมดต่อไปนี้รวมอยู่ในแพ็คเกจของคุณ:
- SFDRF Digital Macro Ring Light Flash Unit (Flash Head and Control Unit)
- 58mm Adapter Ring (for direct connection)
- แหวนอะแดปเตอร์ 52 มม
- แหวนอะแดปเตอร์ 55 มม
- แหวนอะแดปเตอร์ 62 มม
Additional adapter rings (37mm through 72mm) may be purchased separately for compatibility with other lens filter sizes.
การตั้งค่า
- การติดตั้งแบตเตอรี่: Open the battery compartment on the control unit. Insert four (4) AA-size batteries, ensuring correct polarity. Close the compartment securely.
- การติดตั้งชุดควบคุม: Slide the control unit onto your camera's accessory hot shoe. Secure it by tightening the locking mechanism on the control unit.
- Attaching the Flash Head to the Lens:
- For lenses with a 58mm filter size, the flash head connects directly.
- For lenses with 52mm, 55mm, or 62mm filter sizes, select the appropriate adapter ring. Screw the adapter ring onto the front filter thread of your lens, then attach the flash head to the adapter ring.
- Ensure the flash head is securely attached to prevent accidental detachment during use.
- การต่อสายเคเบิล: Connect the cable from the flash head to the control unit. Ensure the connection is firm.

This image displays the Bower SFDRF Digital Macro Ring Light Flash, including the circular flash head, the control unit that mounts to the camera's hot shoe, and various adapter rings for different lens sizes.
คำแนะนำการใช้งาน
- เปิด/ปิดเครื่อง: Use the multi-function switch on the control unit to turn the flash on or off.
- ทดสอบการยิง: The multi-function switch also includes a test fire function. Press it to manually trigger the flash and confirm operation.
- การเลือกโหมด: The SFDRF offers a choice of manual or auto-sensor control. Select the desired mode based on your photographic needs. In auto-sensor mode, the flash adjusts its output based on ambient light conditions.
- ระยะเวลาแฟลช: The flash fires as fast as 1/50,000th of a second, effectively freezing movement for sharp macro photography.
- Creative Lighting Control: For situations where shadow-free images are not desired, the flash head can be detached from the lens and aimed manually to achieve creative lighting effects.
- การติดตั้งขาตั้งกล้อง: The control unit features a built-in tripod socket, allowing it to be mounted to positioning arms or other supports for off-camera flash setups.
- Exposure Management: Due to the powerful output of the ring flash, it may be necessary to adjust your camera's exposure settings (e.g., aperture, ISO) to prevent overexposure, especially in close-up situations. Consider using neutral density (ND) filters if your camera's minimum ISO and maximum aperture settings still result in overexposed images.
การซ่อมบำรุง
- Keep the flash unit clean by wiping it with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
- When not in use for extended periods, remove the AA batteries from the control unit to prevent leakage and potential damage.
- Store the flash in a dry, cool place, away from direct sunlight and extreme temperatures.
- Handle the unit with care, as its construction is primarily thin plastic. Avoid dropping or subjecting it to strong impacts.
การแก้ไขปัญหา
- แฟลชไม่ทำงาน:
- ตรวจสอบว่าติดตั้งแบตเตอรี่ถูกต้องและมีประจุไฟเพียงพอหรือไม่
- Ensure the control unit is securely mounted on the camera's hot shoe and the cable connection to the flash head is firm.
- Verify the flash is powered on.
- Images are Overexposed (Washed Out):
- The flash output may be too strong for your current camera settings. Adjust your camera's aperture to a smaller opening (higher f-number), lower the ISO sensitivity, or increase the shutter speed (within your camera's flash sync speed limits).
- Consider using neutral density (ND) filters on your lens to reduce the amount of light reaching the sensor.
- Focusing Issues with Autofocus:
- The cable connecting the flash head to the control unit may exert tension, potentially affecting lens focus. If experiencing issues, try to manage the cable's position to minimize tension or switch to manual focus.
ข้อมูลจำเพาะ
| ยี่ห้อ | บาวเวอร์ |
| แบบอย่าง | SFDRF |
| ประเภทแฟลชกล้อง | Macro Ring Light Flash |
| เทคโนโลยีการสื่อสารไร้สาย | Optical Pulse |
| ประเภทการติดตั้ง | Hot Shoe Mount |
| แหล่งพลังงาน | แบตเตอรี่ AA 4 ก้อน |
| Flash Head Weight | 4.2 ออนซ์ (ประมาณ) |
| ขนาดแพ็คเกจ | 5.9 x 4.4 x 3.4 นิ้ว |
| น้ำหนักสินค้า | 12 ออนซ์ |
การรับประกันและการสนับสนุน
The Bower SFDRF Digital Macro Ring Light Flash is backed by a lifetime warranty. For warranty claims or technical support, please refer to the contact information provided with your product packaging or visit the official Bower webเว็บไซต์.





