TTArtisan 7.5mm F2.0 APS-C Fisheye Lens User Manual

1. Product Overview

The TTArtisan 7.5mm F2.0 APS-C Fisheye Lens is a manual focus, ultra-wide-angle lens designed for APS-C mirrorless cameras. It offers a 180-degree diagonal angle of view, providing a unique perspective for creative photography. Its large F2.0 aperture allows for excellent low-light performance and shallow depth of field effects.

Front view of the TTArtisan 7.5mm F2.0 Fisheye Lens, showcasing its prominent front element and aperture ring.

Angled view of the lens, highlighting the focus and aperture rings with their markings.

The TTArtisan 7.5mm F2.0 Fisheye Lens shown with its dedicated lens cap, designed to protect the bulbous front element.

Rear view of the lens, displaying the Sony E-Mount interface and the rear optical element.

2. Key Features

• F2.0 Large Aperture: Enables shooting in low-light conditions and provides creative control over depth of field.
• 180° Fisheye Perspective: Captures an ultra-wide field of view, ideal for unique architectural, landscape, and creative shots.
• APS-C Compatibility: Specifically designed for APS-C sensor cameras, offering optimal performance.
• Manual Focus Design: Provides precise control over focusing, allowing for deliberate composition.
• Durable Construction: Features a robust metal body for longevity and reliable use.

3. Setup and Installation

3.1 Attaching the Lens

1. Ensure your camera is turned off.
2. Remove the rear lens cap from the TTArtisan 7.5mm F2.0 lens and the body cap from your camera.
3. Align the red dot on the lens barrel with the corresponding red dot on your camera's lens mount.
4. Gently insert the lens into the camera mount and rotate it clockwise until it clicks into place. Do not force the lens.

3.2 Detaching the Lens

1. Ensure your camera is turned off.
2. While pressing the lens release button on your camera body, rotate the lens counter-clockwise until it stops.
3. Carefully remove the lens from the camera body.
4. Attach the rear lens cap to the lens and the body cap to your camera to protect them from dust and damage.

4. Operating the Lens

4.1 Manual Focus

The TTArtisan 7.5mm F2.0 is a manual focus lens. To achieve sharp images:

• Set your camera to manual focus (MF) mode.
• Look through the viewfinder or use the camera's LCD screen.
• Rotate the focus ring on the lens until your subject appears sharp. Many cameras offer focus peaking or magnification aids to assist with manual focusing.
• The lens features a depth of field scale and distance markings (in meters and feet) to aid in zone focusing.

4.2 Aperture Control

The lens features a manual aperture ring. Rotate the aperture ring to select your desired f-stop (F2.0 to F11). A larger aperture number (e.g., F11) means a smaller opening, resulting in greater depth of field and less light entering the camera. A smaller aperture number (e.g., F2.0) means a larger opening, resulting in shallower depth of field and more light entering the camera.

4.3 Creative Applications

This fisheye lens is excellent for:

• Landscape Photography: Capture expansive scenes with a unique curved perspective.
  

  An example of landscape photography showcasing the ultra-wide angle and characteristic distortion of the fisheye lens.

• Astrophotography: The F2.0 aperture is beneficial for capturing starry skies and the Milky Way.
  

  A night sky image demonstrating the lens's F2.0 large aperture capability for capturing stars and celestial bodies.

• Portrait Photography: Use the unique distortion for artistic portraits, especially environmental portraits.
  

  A portrait shot demonstrating how the fisheye lens can be used creatively to include more of the environment around the subject.
• Close-up Fisheye Shots: The lens allows for close focusing, creating exaggerated perspectives of nearby subjects.
  

  Examples of close-up photography using the fisheye lens, showing the dramatic perspective and wide field of view even at short distances.

• Circular Fisheye Images (on Full-Frame): While designed for APS-C, full-frame users can achieve a circular image by removing the outermost lens cap and accessory.
  

  An illustration demonstrating how to achieve both diagonal and circular fisheye effects with the lens, particularly on full-frame cameras for the circular effect.

5. Maintenance and Care

• Cleaning the Lens: Use a soft, lint-free microfiber cloth specifically designed for optical surfaces. For stubborn smudges, use a small amount of lens cleaning solution applied to the cloth, not directly to the lens.
• Dust Removal: Use a blower brush to remove dust particles from the lens surface before wiping. Avoid using compressed air, which can damage coatings.
• Storage: When not in use, always attach the front and rear lens caps. Store the lens in a dry, cool place, away from direct sunlight and extreme temperatures. Consider using a desiccant packet in humid environments.
• Handling: Avoid touching the glass elements with your fingers. Handle the lens by its barrel.

6. Troubleshooting

Problem: Images are blurry or out of focus.

Solution: Ensure your camera is set to manual focus (MF) mode. Carefully adjust the focus ring on the lens until your subject is sharp. Utilize your camera's focus peaking or magnification features for precise focusing. Check that the aperture is not set too wide for the desired depth of field, or too narrow causing diffraction.

Problem: Lens is difficult to attach/detach.

Solution: Ensure proper alignment of the red dots on the lens and camera body. Do not force the lens. When detaching, ensure the lens release button on the camera is fully depressed. If the issue persists, check for any obstructions on the lens mount or camera mount.

Problem: Dust or smudges on images.

Solution: Inspect the front and rear elements of the lens for dust or smudges. Use a blower brush to remove loose dust, then gently wipe with a clean microfiber lens cloth. Also, check your camera's sensor for dust, which may require professional cleaning.

7. Specifications

Visual representation of the lens specifications and dimensions.

8. Warranty and Support

TTArtisan products are manufactured with high standards of quality and craftsmanship. For warranty information and technical support, please refer to the official TTArtisan website or contact your local distributor.

Please retain your proof of purchase for any warranty claims.

For further assistance, you may visit the TTARTISAN Store on Amazon.