1. Introduction and Overview
Thank you for choosing the 7artisans 35mm T2.0 Cine Lens. This manual provides essential information for the proper setup, operation, and maintenance of your lens. This lens is designed for full-frame mirrorless cameras with an L-Mount, including compatible Leica, Sigma, and Panasonic models.
The 7artisans 35mm T2.0 Cine Lens features a large T2.0 aperture, enabling excellent low-light performance and smooth bokeh. Its optical design minimizes focus breathing, ensuring stable framing during focus adjustments. The lens is constructed with a durable metal body and offers a precise 270-degree focus throw for accurate manual focusing.
Overview of the 7artisans Spectrum Series Cine Lenses, including the 35mm T2.0 model.
2. Setup
2.1 Package Contents
- 7artisans 35mm T2.0 Cine Lens (L-Mount)
- Front Lens Cap
- Rear Lens Cap
- Focus Wrench
The lens package includes the 35mm T2.0 lens, front and rear caps, and a focus wrench.
2.2 Attaching the Lens to Your Camera
- Ensure your camera is powered off.
- Remove the rear lens cap from the 7artisans lens and the body cap from your camera.
- Align the mounting index on the lens with the corresponding index on your camera body.
- Gently insert the lens into the camera mount and rotate it clockwise until it clicks into place. Do not force the lens.
2.3 Camera Settings: "Release Without Lens" Mode
As a manual focus lens without electronic contacts, your camera must be set to "Release Without Lens" mode to function correctly. Failure to do so will prevent the shutter from firing.
Refer to your camera's instruction manual for the exact location of this setting. Common menu paths are illustrated below:
Example camera menu interfaces demonstrating the 'Release without lens' setting for various camera brands.
3. Operating Instructions
3.1 Manual Focusing
The 7artisans 35mm T2.0 is a manual focus lens. Rotate the focus ring to achieve sharp focus. The lens features an extra-long 270-degree focus throw, allowing for precise and delicate focus adjustments, which is ideal for video production.
The lens features a long focus throw for precise manual focusing.
3.2 Adjusting Aperture
The lens has a de-clicked aperture ring, allowing for smooth and silent aperture adjustments during video recording. The aperture ranges from T2.0 to T16. Rotate the aperture ring to select your desired T-stop.
The T2.0 large aperture allows for bright images in low light and shallow depth of field.
3.3 Optical Performance
The lens is designed to deliver high-resolution images with minimal distortion and chromatic aberration. Its optical construction, including ED and high refractive index glass, ensures detailed and color-accurate results.
The lens produces high-resolution images with rich detail.
3.4 Uniform Color Balance and Low Breathing Effect
The Spectrum series lenses are engineered for a uniform color balance across the range, simplifying post-production when switching between lenses. The lens also exhibits an almost "zero" breathing effect, maintaining image stability during focus changes.
The Spectrum series lenses maintain a uniform color balance for consistent footage.
3.5 Sample Videos
Video showcasing sample footage captured with the 7artisans 35mm T2.0 Cinema Lens.
Overview video of the 7artisans Spectrum Series Cinema Lenses.
Video demonstrating the 7artisans 35mm, 50mm, and 85mm T2.0 lenses.
4. Maintenance
4.1 Cleaning the Lens
- Use a soft, lint-free cloth or a lens brush to remove dust from the lens surfaces.
- For stubborn smudges, apply a small amount of lens cleaning solution to a microfiber cloth and gently wipe the lens in a circular motion.
- Avoid touching the glass elements directly with your fingers.
4.2 Storage
- Always attach the front and rear lens caps when the lens is not in use.
- Store the lens in a cool, dry place, away from direct sunlight and extreme temperatures.
- If storing for extended periods, consider using a dehumidifying agent to prevent mold growth.
5. Troubleshooting
5.1 Camera Not Firing Shutter
Problem: The camera does not take photos or record video when the lens is attached.
Solution: This is a common issue with manual lenses that lack electronic contacts. You must enable the "Release Without Lens" or a similar setting in your camera's menu. Refer to Section 2.3 for more details and examples.
5.2 Unsharp Images
Problem: Images appear blurry or out of focus.
Solution: Ensure you are manually focusing correctly. Utilize your camera's focus peaking or magnification features to assist with precise focusing. Check that the lens elements are clean and free from smudges.
6. Specifications
| Feature | Specification |
|---|---|
| Brand | 7artisans |
| Model Name | Spectrum Series (L-Mount) |
| Focal Length | 35mm |
| Maximum Aperture | T2.0 |
| Minimum Aperture | T16 |
| Lens Mount | Leica L |
| Focus Type | Manual Focus |
| Minimum Focusing Distance | 0.3 meters |
| Angle of View | 64 degrees |
| Filter Size | 8.2 centimeters |
| Number of Diaphragm Blades | 11 (from feature bullets, specs say 9, using feature bullets for consistency with other features) |
| Lens Coating | MC Multilayer Coating |
| Image Stabilization | Optical (Note: Lens itself does not have IS, this likely refers to camera body IS) |
| Water Resistance Level | Not Water Resistant |
Detailed specifications for the 7artisans Spectrum Series lenses.
7. Warranty and Support
7.1 Warranty Information
This 7artisans lens comes with a 1-year warranty from the date of purchase. The warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized repairs, or normal wear and tear.
7.2 Customer Support
For technical assistance, warranty claims, or any other inquiries, please contact 7artisans customer support through their official channels or the retailer where the product was purchased. Please have your purchase receipt and product model information ready when contacting support.