7artisans 50mm F0.95 Large Aperture Manual Prime Lens APS-C for Fuji FX-Mount User Manual

Introduction

This manual provides detailed instructions for the proper use, setup, and maintenance of your 7artisans 50mm F0.95 Large Aperture Manual Prime Lens. Designed for APS-C Fuji FX-Mount mirrorless cameras, this lens offers exceptional low-light performance and creative control over depth of field. Please read this manual thoroughly before using your lens to ensure optimal performance and longevity.

The 7artisans 50mm F0.95 lens, shown with front and rear caps, and a carrying pouch.

Key Features

• Charming Bokeh: The 50mm F0.95 lens, equivalent to approximately 75mm on APS-C sensors, facilitates easy capture of soft, natural bokeh and shallow depth of field, effectively highlighting your subject.
• Enhanced Low-Light Performance: The F0.95 aperture allows for significant light intake, enabling clear image capture with low sensitivity even in challenging lighting conditions.
• Large Aperture Design: Features an F0.95 aperture and a 62mm filter diameter, designed to achieve dreamy blur effects without compromising image quality.
• Advanced Optical Structure: Composed of 7 optical glass elements in 5 groups, including 2 ED (Extra-low Dispersion) glass elements, and a 13-blade aperture for smooth out-of-focus areas.
• Close Focusing Capability: Provides a minimum focusing distance of 0.45 meters, suitable for detailed portraits and landscape photography.

Product Overview and Components

Familiarize yourself with the various parts of your 7artisans 50mm F0.95 lens for efficient operation.

A detailed diagram of the lens, labeling its key components such as the filter installationscrew, aperture indicator, aperture ring, focus ring, focal length scale, depth of field scale, and mount, along with its 62mm filter size and 58mm height.

• Filter Installationscrew: Threaded area for attaching filters (62mm diameter).
• Aperture Indicator: Marks the selected aperture value.
• Aperture Ring: Used to manually adjust the lens aperture (de-clicked for smooth video transitions).
• Focus Ring: Used for manual focusing.
• Focal Length Scale: Indicates the current focal length (fixed at 50mm for this prime lens).
• Depth of Field Scale: Provides a visual guide for depth of field at various apertures.
• Mount: The lens mount (Fuji FX-Mount) for attaching to compatible camera bodies.

Setup

Mounting the Lens

1. Ensure your camera is powered off.
2. Align the red dot on the lens barrel with the corresponding mark on your camera's lens mount.
3. Gently twist the lens clockwise until it clicks into place, indicating it is securely mounted.

Camera Settings for Manual Lens

Since this is a manual lens with no electronic contacts, your camera needs to be configured to allow shooting without a lens attached. Refer to your camera's manual for specific instructions, or use the general guidance below:

An image displaying various camera menu screens (Sony, Fujifilm, Canon, Nikon) illustrating how to enable the 'Release shutter w/o lens' function, which is necessary for operating manual lenses.

• Navigate to your camera's menu.
• Look for settings related to 'Shooting without lens', 'Release shutter w/o lens', or similar options.
• Enable this function to allow the camera to fire the shutter with the manual lens attached.
• For optimal manual focusing, consider enabling focus peaking or magnification assist in your camera's settings.

Operating the Lens

Manual Focus

The 7artisans 50mm F0.95 lens features a smooth focus ring for precise manual control. Rotate the focus ring until your subject appears sharp in the viewfinder or on the LCD screen. Utilizing your camera's focus peaking or magnification assist features is highly recommended for accurate focusing, especially at wide apertures.

Aperture Control and Creative Effects

The F0.95 aperture is exceptionally wide, allowing for significant creative control:

• Shallow Depth of Field: At F0.95, the lens produces a very shallow depth of field, isolating your subject from the background with beautiful, soft bokeh. This is ideal for portraits and artistic photography.
• Low-Light Performance: The large aperture excels in low-light conditions, allowing you to capture bright images without significantly increasing ISO, thus minimizing noise.
• De-clicked Aperture Ring: The aperture ring is de-clicked, providing smooth, stepless transitions, which is particularly beneficial for video recording to avoid abrupt changes in exposure.

A close-up view of the lens's front element, highlighting its wide F0.95 aperture.

An example photograph showcasing the lens's ability to capture pure images with prominent subject details, even in low light.

A sample image illustrating the soft, natural bokeh and shallow depth of field achievable with the F0.95 aperture.

Official Product Video

Official product video demonstrating the features and image quality of the 7artisans 50mm F0.95 lens, including its large aperture and bokeh capabilities.

Optical Structure

The 7artisans 50mm F0.95 lens is constructed with a sophisticated optical design to deliver high-quality images. It features 7 elements arranged in 5 groups, incorporating 2 ED (Extra-low Dispersion) glass elements to minimize chromatic aberrations and enhance image clarity. The 13 aperture blades contribute to a pleasing, circular bokeh.

A diagram detailing the internal optical construction of the lens, showing 7 elements in 5 groups.

A Fujifilm mirrorless camera with the 7artisans 50mm F0.95 lens attached, accompanied by an MTF (Modulation Transfer Function) chart indicating lens performance.

Specifications

Detailed technical specifications for the 7artisans 50mm F0.95 lens:

A table presenting the lens's technical specifications, including focal length, maximum/minimum aperture, lens construction, minimum focusing distance, frame type, aperture ring type, anti-shake, blade numbers, angle of view, lens material, weight, focusing method, and compatible mounts.

Maintenance

Proper care and maintenance will ensure the longevity and performance of your lens:

• Cleaning the Lens: Use a soft, lint-free cloth or a lens brush to remove dust. For smudges, use a specialized lens cleaning solution and a microfiber cloth. Avoid touching the glass elements directly with your fingers.
• Storage: Store the lens in a dry, cool place away from direct sunlight and extreme temperatures. Use the provided lens caps to protect the front and rear elements from dust and scratches.
• Handling: Always handle the lens by its barrel, not by the focusing or aperture rings, to prevent accidental adjustments or damage.

Troubleshooting

If you encounter any issues, consider the following common troubleshooting steps:

• Camera not firing: Ensure the 'Release shutter w/o lens' function is enabled in your camera's menu (refer to the Setup section).
• Soft focus: Verify that you are using your camera's focus peaking or magnification assist for accurate manual focusing. At F0.95, the depth of field is extremely shallow, requiring precise focus.
• Chromatic Aberration/Fringing: While the lens design minimizes aberrations, some fringing (color halos) may be visible in high-contrast areas, especially at wide apertures. This can often be corrected in post-processing software.
• Dust on sensor/lens: Regularly clean your lens and camera sensor using appropriate cleaning tools.

Warranty and Support

Your 7artisans 50mm F0.95 lens comes with a one-year free warranty service. If you experience any problems with the product, please contact 7artisans customer support. They are committed to resolving any issues within 24 hours.

For support, please visit the official 7artisans website or contact their customer service directly through the retailer where you purchased the product.

Package Contents

Upon opening your 7artisans 50mm F0.95 lens package, you should find the following items:

• 7artisans 50mm F0.95 Lens
• Front Lens Cap
• Rear Lens Cap
• Instruction Manual

The package contents, including the lens, front and rear caps, and the instruction manual.