1. Introdução
This manual provides comprehensive instructions for the proper use, setup, and maintenance of your YNLENS YN11mm F1.8S DA DSM Ultra Wide Angle Large Aperture Lens. Designed for Sony E Mount APS-C frame mirrorless cameras, this lens offers a dynamic perspective with its ultra-wide 11mm focal length and a large F1.8 aperture, making it suitable for various photographic and videographic applications.
Please read this manual thoroughly before using the lens to ensure optimal performance and longevity.

Figure 1: YN11mm F1.8S DA DSM Lens
2. O que está na caixa
Verifique se todos os itens estão presentes na embalagem:
- YN11mm F1.8S DA DSM lens
- Tampa da lente
- Manual do usuário

Figure 2: Contents of the Lens Packaging
3. Configuração
3.1 Montagem da Lente
- Certifique-se de que sua câmera esteja desligada.
- Align the white dot on the lens barrel with the white dot on your camera's lens mount.
- Gently insert the lens into the camera mount.
- Rotate the lens clockwise until it clicks into place, indicating it is securely locked.
- Remova a tampa da lente frontal.
3.2 Atualização de firmware
The lens features a USB Type-C interface for firmware updates. To ensure optimal performance and access to the latest features, regularly check the official YNLENS website for new firmware versions. Download and follow the provided instructions for updating the lens firmware.
4. Operando a Lente
4.1 Autofocus (AF) System
The YN11mm F1.8S DA DSM lens utilizes Digital Stepping Motors (DSM) for fast, precise, and quiet autofocus. This system is highly reliable for both still photography and video recording. The lens provides excellent video autofocus performance with good respiratory effect control, minimizing focus breathing during video capture.
4.2 Controle de Abertura
The lens features a large F1.8 aperture, allowing for excellent low-light performance and beautiful background blur (bokeh). You can adjust the aperture using the dedicated aperture ring on the lens. The aperture ring offers both click-stop adjustment for precise control and a click-less (OFF) mode for silent operation during video recording.

Figure 3: Aperture Ring with Click-Stop and Click-Less Options
4.3 Optical Performance
This ultra-wide-angle lens delivers outstanding image quality with excellent center-to-edge resolution. It incorporates specialized optical elements, including aspherical lenses and low-dispersion glass lenses, to effectively suppress various aberrations and control flare and ghosting, even when shooting against bright light sources. This ensures clear and sharp images, particularly beneficial for astrophotography where point light sources remain distinct without flare.

Figure 4: Modern Optical Structure Design

Figure 5: Key Optical Features including F1.8 Large Aperture and 10 Optical Glass Lenses
4.4 Minimum Focusing Distance
The lens boasts a minimum focusing distance of 0.15m (approximately 0.49ft), allowing for close-up shots with a natural defocus performance, creating pleasing bokeh effects.
4.5 controle remoto sem fio
The YN11mm F1.8S DA DSM lens supports wireless remote control via Bluetooth. This feature allows for convenient focus and aperture adjustments, including A-B focus switching and adjustable zoom speed, enhancing your creative control, especially in video production or when the camera is mounted on a gimbal or drone.
Video 1: YN11mm F1.8S DA DSM Lens Features Overview
This video demonstrates the lens's autofocus capabilities, large aperture, compact design, and wireless remote control features.
5. Manutenção
5.1 Limpeza da Lente
To clean the lens surface, use a soft, lint-free microfiber cloth specifically designed for optical surfaces. For stubborn smudges, a small amount of lens cleaning solution can be applied to the cloth (not directly to the lens). Avoid using abrasive materials or harsh chemicals.
5.2 Armazenamento
When not in use, store the lens with both front and rear caps attached in a dry, cool place away from direct sunlight and extreme temperatures. Consider using a desiccant packet in your camera bag or storage area to prevent mold and mildew, especially in humid environments.
6. Solução De Problemas
| Problema | Possível causa | Solução |
|---|---|---|
| Lens not recognized by camera | Improper attachment; dirty contacts | Re-attach lens securely; clean lens and camera contacts with a dry, clean cloth. |
| O foco automático não está funcionando | AF/MF switch setting; low light; subject too close/far | Ensure lens is set to AF; use manual focus in very low light; check minimum focusing distance. |
| As imagens estão desfocadas | Incorrect focus; camera shake; dirty lens element | Verify focus; use faster shutter speed or tripod; clean lens. |
| Wireless remote not connecting | Battery low; pairing issue | Replace remote battery; re-pair the remote with the lens according to instructions. |
7. Especificações
| Recurso | Detalhe |
|---|---|
| Dimensões do produto | 4.33 x 3.54 x 3.54 polegadas |
| Peso do item | 13.8 onças |
| Número do modelo do item | YN11mm F1.8S DA DSM |
| Descrição da distância focal | Wide Angle 11mm |
| Tipo de lente | Grande Angular |
| Montagens Compatíveis | Sony E |
| Fabricante | YONGNUO |
| Marca | YNLENS |
8. Garantia e suporte
8.1 Informações de garantia
This YNLENS product is covered by a manufacturer's warranty against defects in materials and workmanship. The specific terms and duration of the warranty may vary by region. Please retain your proof of purchase for warranty claims.
8.2 Suporte ao cliente
For technical assistance, troubleshooting, or warranty service, please contact YNLENS customer support through their official website or the retailer from whom you purchased the product. Provide your product model number and purchase details for efficient service.