Introduction
This manual provides essential information for the proper use and care of your Minolta AF 50mm F1.7 RS Full Frame Lens. Designed for Minolta Alpha and Sony A-Mount SLR, SLT, and DSLR camera bodies, this prime lens offers a fixed 50mm focal length and a wide f/1.7 aperture, ideal for various photographic applications including portraiture and low-light conditions. Please read this manual thoroughly to ensure optimal performance and longevity of your lens.
Product Features
The Minolta AF 50mm F1.7 RS lens incorporates several design elements for enhanced usability and optical performance:
- Full frame lens format, compatible with Sony/Minolta A-Mount SLR, SLT, and DSLR camera bodies.
- Integrated pull-out lens hood for reducing flare and protecting the front element.
- Dampened manual focus for precise control, an improvement over earlier standard versions.
- Wide rubberized focusing ring for comfortable and secure grip.
- Lightweight plastic body construction combined with a durable metal lens mount.

Front view of the Minolta AF 50mm F1.7 RS lens, highlighting the model designation and filter size.
Setup
Attaching the Lens
- Ensure your camera is powered off.
- Remove the rear lens cap from the Minolta AF 50mm F1.7 RS lens and the body cap from your camera.
- Align the red mounting index mark on the lens barrel with the corresponding red index mark on your camera's lens mount.
- Insert the lens into the camera mount and rotate it clockwise until it clicks securely into place. Do not force the lens.

The metal lens mount and electronic contacts on the rear of the Minolta AF 50mm F1.7 RS lens.
Detaching the Lens
- Ensure your camera is powered off.
- While pressing the lens release button on your camera body, rotate the lens counter-clockwise until it stops.
- Carefully remove the lens from the camera mount.
- Attach the rear lens cap to the lens and the body cap to your camera to protect them from dust and damage.

Side view of the Minolta AF 50mm F1.7 RS lens, displaying the focus distance scale and depth of field indicators.
Operating the Lens
Focusing
This lens supports both autofocus (AF) and manual focus (MF). The camera body controls the focus mode. Refer to your camera's instruction manual for details on switching between AF and MF modes.
- Autofocus: When the camera is set to AF, the lens will automatically focus on your subject. The Minolta Maxxum Autofocus Lens System ensures seamless communication between the lens and camera for accurate focusing.
- Manual Focus: When the camera is set to MF, rotate the wide rubberized focusing ring on the lens barrel to adjust focus manually. The dampened mechanism provides smooth and precise control. The focus distance scale (in feet and meters) on the lens barrel indicates the current focus distance.
Aperture Control
The lens features a maximum aperture of f/1.7, allowing for excellent performance in low-light conditions and the creation of shallow depth of field effects (bokeh). The aperture is controlled electronically by the camera body. You can adjust the aperture settings through your camera's exposure control modes (e.g., Aperture Priority, Manual).

Internal view of the Minolta AF 50mm F1.7 RS lens, illustrating the aperture blades.
Integrated Lens Hood
The lens includes an integrated pull-out lens hood. To deploy, gently pull the front section of the lens forward until it locks into place. To retract, push it back until it is flush with the lens barrel. The lens hood helps to prevent stray light from entering the lens, reducing flare and ghosting, and offers some physical protection to the front element.
Maintenance and Care
Proper maintenance ensures the longevity and optical quality of your lens.
- Cleaning Lens Elements: Use a soft, clean lens brush or a blower to remove dust from the front and rear lens elements. For smudges or fingerprints, apply a small amount of lens cleaning solution to a clean microfiber cloth and gently wipe the surface in a circular motion. Avoid touching the glass directly with your fingers.
- Cleaning Lens Body: Wipe the lens body with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, followed by a dry cloth. Do not use organic solvents or strong chemical cleaners.
- Storage: When not in use, always attach the front and rear lens caps. Store the lens in a cool, dry place, away from direct sunlight and extreme temperatures. Avoid storing in areas with high humidity to prevent mold growth.
- Protective Coating: The lens elements feature a protective coating. Handle with care to avoid scratching or damaging this coating.
Troubleshooting
If you encounter issues with your Minolta AF 50mm F1.7 RS lens, consider the following common solutions:
- Lens not focusing: Ensure the camera is set to the correct focus mode (AF or MF). Check that the lens is securely mounted to the camera body. Clean the electronic contacts on both the lens and camera with a clean, dry cloth.
- Images are blurry: Verify that the lens elements are clean. Check your camera's shutter speed and aperture settings to ensure they are appropriate for the lighting conditions. In manual focus mode, ensure you have accurately focused on your subject.
- Lens not recognized by camera: Power off the camera, detach and reattach the lens, ensuring it clicks into place. Clean the electronic contacts on both the lens and camera.
- Dust or spots in images: Clean the front and rear lens elements. If spots persist, check your camera's sensor for dust.
For camera-specific issues or persistent problems, consult your camera's instruction manual or contact customer support.
Specifications
Key technical specifications for the Minolta AF 50mm F1.7 RS lens:
| Brand | Minolta |
| Model Name | 50mm f/1.7 |
| Focal Length | 50 Millimeters |
| Maximum Aperture | f/1.7 |
| Lens Type | Prime |
| Compatible Mountings | Minolta Alpha, Sony A |
| Focus Type | Auto Focus |
| Photo Filter Size | 49 Millimeters |
| Item Weight | 6.5 Ounces |
| Manufacturer Part Number | 2613-600 |

Rear view of the Minolta AF 50mm F1.7 RS lens, displaying its serial number and country of manufacture.
Warranty Information
This Minolta product is covered by a manufacturer's warranty. The terms and duration of the warranty may vary depending on your region and point of purchase. Please retain your proof of purchase for warranty claims. For detailed warranty information, refer to the documentation included with your lens or visit the official Minolta or Konica Minolta website.
Customer Support
For technical assistance, service, or inquiries regarding your Minolta AF 50mm F1.7 RS lens, please contact the customer support channels provided by Minolta or Konica Minolta in your region. You may also find support resources on the official websites of Minolta or Sony (for A-mount compatibility).
Online resources and FAQs can often provide quick solutions to common questions.