Lee Filters SW150 - User Manual

SW150 Lens Adaptor Assembly Instructions
CANON 17MM TS-E LENS ADAPTOR
Stage 1
As this lens does not have a standard fi lter thread,
the lens adaptor has to attach via a bayonet fi tting
at the end of the lens.
Front Back
Red locking latchLocking pin

Summary

SW150 Lens Adaptor Assembly Instructions

Stage 1: Initial Attachment Method

Explains the bayonet fitting attachment for lenses without standard filter threads.

Stage 2: Securing the Adaptor

Details placing the adaptor and using the red locking latch to release the locking pin.

Stage 3: Finalizing Attachment and Removal

Covers twisting to secure the adaptor and detaching it using the locking latch.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The LEE Filters SW150 Lens Adaptor for the Canon 17mm TS-E lens is a specialized accessory designed to seamlessly integrate with the LEE Filters SW150 Filter Holder system. Its primary function is to provide a secure and stable mounting point for the SW150 Filter Holder on the Canon 17mm TS-E lens, which, unlike many lenses, does not feature a standard filter thread. This adaptor is crucial for photographers who wish to utilize the SW150 system's large format filters with this specific tilt-shift lens, enabling creative control over light and exposure in various photographic scenarios.

Function Description:

The core function of this lens adaptor is to bridge the mechanical gap between the Canon 17mm TS-E lens and the LEE SW150 Filter Holder. It achieves this by utilizing a bayonet fitting mechanism that attaches directly to the end of the lens. This design ensures a robust and precise connection, essential for maintaining optical alignment and preventing light leaks when using filters. The adaptor facilitates the use of the SW150 system, which is known for its ability to accommodate large, high-quality filters, including neutral density (ND) filters, graduated neutral density (GND) filters, and polarizers. These filters are indispensable tools for landscape, architectural, and long-exposure photography, allowing photographers to manage challenging lighting conditions, balance exposures between bright skies and darker foregrounds, and reduce reflections. Without this specific adaptor, the Canon 17mm TS-E lens would be incompatible with the SW150 filter system, limiting its versatility for professional photographers.

Important Technical Specifications:

While the manual does not explicitly list detailed technical specifications such as materials or dimensions, the design implies certain characteristics. The adaptor is engineered to fit the Canon 17mm TS-E lens precisely, suggesting a custom-molded or machined construction to match the lens's bayonet mount. The presence of a "Locking pin" and a "Red locking latch" indicates a secure, positive locking mechanism, crucial for preventing accidental detachment of the adaptor and the attached filter holder, especially given the weight of the SW150 system and filters. The color coding of the latch ("Red locking latch") is a user-friendly feature, making it easy to identify the mechanism for engagement and disengagement. The adaptor's internal diameter must be precisely matched to the outer diameter of the Canon 17mm TS-E lens barrel to ensure a snug fit, while its external profile is designed to interface with the SW150 Filter Holder. The robust nature of the SW150 system suggests that the adaptor itself is constructed from durable materials, likely high-grade aluminum or a similar robust composite, capable of withstanding the rigors of professional use and varying environmental conditions. The design also implies a minimal impact on the optical path, ensuring that the adaptor itself does not introduce vignetting or other optical aberrations when used with the wide-angle 17mm lens.

Usage Features:

The LEE Filters SW150 Lens Adaptor is designed for straightforward and intuitive use, emphasizing quick attachment and detachment.

• Bayonet Fitting: The primary attachment method is a bayonet fitting, which is known for its speed and security compared to screw-in threads. This allows for rapid setup and breakdown, which is particularly beneficial in dynamic shooting environments.
• Locking Mechanism: The adaptor features a "Locking pin" controlled by a "Red locking latch." This two-part mechanism ensures that the adaptor is firmly secured to the lens. To attach, the user places the adaptor over the end of the lens, ensuring the red locking latch faces the rear. The latch is then slid and held outwards to release the locking pin.
• Clockwise Twist for Engagement: Once the locking pin is released, the adaptor is twisted clockwise onto the bayonet fitting of the lens. This twisting motion engages the bayonet, and once in position, releasing the red locking latch locks the adaptor securely in place. This positive locking action provides confidence that the adaptor and the attached filter holder will not inadvertently detach during use.
• Anticlockwise Twist for Disengagement: Removal is equally simple. The red locking latch is slid and held outwards again to release the locking pin. The adaptor is then twisted anticlockwise until it detaches from the bayonet fitting. This reversible mechanism allows for easy storage and transport of the lens without the adaptor attached.
• Orientation Indicator: The instruction to ensure the "red locking latch is facing the rear of the lens" during placement serves as a clear orientation guide, simplifying the initial alignment process and preventing incorrect attachment.
• Compatibility with SW150 Filter Holder: Once attached, the lens adaptor is ready to accept the SW150 Filter Holder, forming a complete system for filter usage. This modularity is a key feature of the LEE Filters system, allowing users to interchange components as needed.

Maintenance Features:

The manual does not explicitly detail maintenance features, but based on the nature of such photographic accessories, general best practices would apply:

• Cleaning: The adaptor should be kept clean from dust, dirt, and grime. A soft, lint-free cloth can be used to wipe down the surfaces. For stubborn marks, a slightly damp cloth (with water or a mild lens cleaning solution) followed by a dry cloth would be appropriate. Care should be taken to avoid getting liquids into any moving parts or crevices.
• Inspection: Regular inspection of the bayonet fitting, locking pin, and red locking latch is advisable to ensure they are free from damage, wear, or obstructions. Any signs of wear on the bayonet teeth or issues with the locking mechanism could compromise the security of the attachment.
• Storage: When not in use, the adaptor should be stored in a clean, dry environment, preferably in a protective pouch or case to prevent scratches and impacts. Avoiding extreme temperatures and humidity will help prolong its lifespan.
• Lubrication (Caution): While not mentioned, for any moving mechanical parts like the locking pin mechanism, it's generally best to avoid self-lubrication unless specifically recommended by the manufacturer, as improper lubricants can attract dust or degrade materials.
• Handling: Always handle the adaptor with care, avoiding drops or impacts that could deform the bayonet fitting or damage the locking mechanism, which are critical for its function.

In summary, the LEE Filters SW150 Lens Adaptor for the Canon 17mm TS-E lens is an essential, purpose-built accessory that enables the use of the SW150 filter system with this specific lens. Its design prioritizes secure attachment, ease of use, and compatibility, allowing photographers to unlock the full creative potential of their Canon 17mm TS-E lens in conjunction with LEE's high-quality filters. The robust locking mechanism and intuitive bayonet fitting underscore its professional-grade construction and functionality.

Lee Filters SW150 Specifications

General

Brand	Lee Filters
Model	SW150
Category	Camera Accessories
Language	English