Maximize your fixture's reach. The SI-33B refines light spread to deliver 3.9x greater intensity, ideal for punching light through windows or creating high-contrast key light setups.
Compact and Portable Design
The compact design fits in standard camera bags. Use professional light shaping on location without adding extra bulk to your travel gear.
Lightweight, Durable Design
Weighing a mere 2.43lb, this modifier handles with ease. Its robust construction ensures durability for demanding productions.
Precision Light Shaping Performance
Engineered for high-intensity output. Compare the 88,500lux peak with the SI-33B against bare bulb performance to see the difference in beam control and throw distance.
Advanced Optical Focusing Lens
Three-stage optics collect, focus, and smooth light. Transform scattered output into a defined, uniform beam for cleaner shadows and more controlled lighting environments.
High-Contrast Beam Control
Visualize the difference. The SI-33B creates a tighter, focused beam with a defined hotspot, effectively eliminating unwanted spill for more professional, cinematic lighting.
Universal Bowens Mount Compatibility
Standardized Bowens mount ensures compatibility with most COB lights. Mounts easily to your existing GVM fixtures for instant light shaping and increased versatility on set.
