NiSi C5 - User Manual

The NiSi C5 Matte Box is a versatile and essential accessory designed to enhance your filmmaking experience by providing superior light control and filter management. This product is engineered for precision and ease of use, making it suitable for both professional cinematographers and serious hobbyists.

Function Description

The primary function of the NiSi C5 Matte Box is to prevent unwanted lens flare and glare by blocking stray light from entering the lens. This is achieved through its adjustable top flag, which can be precisely positioned to shield the lens from various light sources. Beyond light control, the C5 Matte Box also serves as a robust filter system, allowing users to mount multiple filters simultaneously to achieve desired creative effects. It supports both 4x4 or 100x100mm filters and 4x5.65 filters, offering flexibility for different shooting scenarios. Additionally, the matte box can integrate a VND 1-5 Stops filter, providing variable neutral density control to manage exposure without altering color. The inclusion of an M0.8 gear allows for manual rotation of the VND filter or integration with a lens control system, offering precise and smooth adjustments. The C5 Matte Box is designed to be mounted directly onto a lens via an adapter ring, ensuring a secure and stable connection.

Usage Features

The NiSi C5 Matte Box is designed with user-friendliness and efficiency in mind, incorporating several features that streamline the filmmaking workflow.

• Adapter Ring System: The matte box utilizes an adapter ring system for mounting onto various lenses. Users can select an adapter ring that matches their lens diameter (available in 67mm, 72mm, 77mm, and 82mm) and simply tighten it clockwise onto the lens. The matte box then slides onto this adapter ring, and a locking screw secures it in place, ensuring a firm and stable connection. This system allows for quick and easy attachment and detachment, making lens changes efficient on set.

• Filter Tray Management: The C5 Matte Box accommodates two types of filter trays: the C501-103A for 4x4 or 100x100mm filters and the C501-102A for 4x5.65 filters. The filter installation process is intuitive:

  • To insert a filter, the limit switch at the top of the filter holder must be moved upwards until it stops.
  • The filter is then inserted into the position slot, ensuring it is tightly attached.
  • Finally, the limit switch is released, securely locking the filter in place. This design prevents accidental filter drops and ensures filters are correctly seated for optimal performance. The C501-102A filter tray also features a dedicated screw for tightening, providing an extra layer of security for the 4x5.65 filters.

• VND 1-5 Stops Integration: A significant feature of the C5 Matte Box is its ability to integrate the C5 VND 1-5 Stops filter. This variable neutral density filter can be inserted into a dedicated mounting slot on the top of the matte box. The VND filter is equipped with an M0.8 gear, allowing for precise and smooth adjustments to the density. This gear can be rotated manually or connected to a lens control system, offering flexibility in exposure control. The VND filter is particularly useful in situations where lighting conditions change rapidly or when a specific depth of field needs to be maintained in bright light.

• Adjustable Top Flag: The matte box includes a top flag that is crucial for controlling lens flare and glare. This top flag can be adjusted accurately at any angle to effectively block stray light. Once the desired angle is achieved, a screw on the top flag can be tightened clockwise to lock it securely in position. This adjustability ensures maximum light control in various shooting environments and lighting conditions.

• Mounting Hole for Rods: For enhanced versatility and integration into larger camera rigs, the C5 Matte Box features a mounting hole for rods. This allows users to attach additional accessories or mount the matte box onto a rod support system, providing greater stability and customization options for their setup.

• Robust Construction: The NiSi C5 Matte Box is built with durability in mind, using high-quality materials that can withstand the rigors of professional use. Its robust construction ensures longevity and reliable performance in diverse shooting conditions.

Maintenance Features

Maintaining the NiSi C5 Matte Box is straightforward, focusing on keeping the components clean and ensuring smooth operation.

• Regular Cleaning: To ensure optimal performance and image quality, it is important to regularly clean the matte box, especially the filter trays and the filters themselves. Dust and smudges on filters can degrade image quality. Use a soft, lint-free cloth and a suitable lens cleaning solution for filters. For the matte box body, a damp cloth can be used to wipe away dirt and grime.

• Inspection of Moving Parts: Periodically inspect the screws for the top flag, adapter ring locking, and filter tray tightening to ensure they are secure and functioning correctly. If any screws feel loose, gently tighten them. Also, check the limit switch for filter installation to ensure it moves freely and locks filters securely.

• Storage: When not in use, store the matte box and its components in a clean, dry place, preferably in a protective case. This prevents dust accumulation, scratches, and potential damage from impacts. Keeping filters in their individual protective pouches or cases is also recommended.

• Adapter Ring Care: Ensure the adapter rings are kept clean and free from debris, as this can affect their ability to securely attach to lenses and the matte box. Avoid overtightening the adapter rings onto lenses to prevent damage to the lens threads.

By following these usage and maintenance guidelines, users can ensure their NiSi C5 Matte Box remains a reliable and high-performing tool for their filmmaking endeavors, consistently delivering excellent light control and filter management capabilities.