The Calumet ND16x SMC Ultra Slim Filter reduces incoming light by 4 stops, enabling significantly longer exposures and wider apertures in very bright environments. Constructed from Japanese AGC glass with 28 multilayer coatings, it maintains neutral colour accuracy while resisting reflections, moisture and surface wear. A 3.3mm slim aluminium frame with front threading supports stacking with minimal optical impact.
Calumet ND16x SMC Ultra Slim Filter Key Features:
- Neutral density filter with ND16x light reduction
- 55mm filter thread for compatible lenses
- 4EV light reduction with exposure times up to 16x longer
- 28 multilayer coatings for optical clarity and durability
- Japanese AGC glass with neutral colour transmission
- Hydrophobic and oleophobic coatings for easier cleaning
- Scratch-resistant and anti-reflective surface treatments
- Ultra slim 3.3mm aerospace aluminium frame
- Front threading for stacking filters or accessories
- Protective filter case included
FAQs
What shooting situations suit the ND16x filter?
The ND16x filter reduces light by 4 EV, allowing shutter speeds up to 16 times longer. This supports strong motion blur effects such as silky water or cloud movement. It also enables wide apertures in intense daylight. Exposure control remains consistent.
Will the ND16x filter affect colours or sharpness?
Japanese AGC glass ensures neutral colour transmission even with higher density. The 28 multilayer coatings reduce flare and internal reflections. This helps maintain contrast and sharpness. Image quality remains stable across the frame.
Is the frame suitable for wide-angle lenses?
The 3.3mm slim aluminium frame is designed to minimise vignetting. Front threading allows additional filters or accessories to be attached. Tabs improve handling during mounting and removal. This supports flexible use across different lenses.
Product Specification
| Effect | Type | Neutral Density |
| Thread Size [mm] | 55.0 |
| Type | Lens Filter |