Simmod Aluminum Front Lens Cap

Front-mounted cine lenses require a rigid protective interface when not in use.

This cap provides a fixed, mechanical solution.

The Simmod Aluminum Front Lens Cap is a slip-on protective cap designed for lenses with a standardized 80/85/95/114mm outside diameter, commonly found on cine-modded lenses and front ring systems.

Function

• Protects the front element of the lens during storage and transport
• Shields against dust, debris, and minor impact
• Designed for repeated installation and removal 

Fitment

• Compatible with lenses measuring 80/85/95/114mm outside diameter outer diameter at the front
• Designed for cine-standard fronts rather than internal filter threads
• Installs via slip-on friction fit 

Fit is achieved through contact with the external diameter of the lens, not threaded engagement.

Construction

• Manufactured from anodized aluminum
• Exterior features a CNC-machined knurled edge for grip
• Interior includes a protective grip lining to maintain retention 

The rigid aluminum structure provides increased durability compared to flexible rubber caps.

Mechanical Characteristics

• Slip-on design allows quick installation and removal
• Knurled edge provides manual grip during handling
• Inner lining creates friction-based retention without locking mechanisms 

System Context

This cap is intended for lenses that have been standardized to a cine outer diameter, typically through:

• Front cine rings
• Integrated cine housings

Notes

• Not compatible with lenses that rely solely on internal filter thread sizing
• Fitment depends on accurate external diameter measurement
• Does not provide environmental sealing

A rigid aluminum cap designed for 80/85/95/ or 114mm outer diameter lens fronts, providing mechanical protection through a slip-on interface.