Canon 2191B001 77mm circular polarizer camera filter
77 mm circular polarizer cuts glare from glass and water while boosting colour saturation
- Size77 mm
- Product typePolarizer
- Key featuresPolarizing filter enhances picture quality by blocking harmf
- Reduces glare from glass and water surfaces with polarizing filter
- Improves colour saturation by blocking harmful reflected light
- Circular polarisation avoids interference with autofocus and TTL metering
- 77mm screw-in thread fits compatible lenses directly
- New condition ensures pristine optical performance from first use
Canon 77 mm Circular Polarizer
The Canon 2191B001 is a 77 mm screw-in circular polarizer designed for photographers who need to control reflections and boost colour saturation. It fits lenses with a 77 mm filter thread and works with autofocus and TTL metering systems without interference.
Consistent effect under sustained use
The filter blocks polarized light continuously, so reflections from glass or water stay suppressed throughout a shooting session. Colour saturation remains enhanced frame after frame without the variation that can appear with linear polarizers.
Slim mount and standard threading
The circular polarizer uses a standard 77 mm thread that screws directly onto compatible lenses or onto a lens cap with the same diameter. Its low-profile frame reduces the chance of vignetting on wide-angle lenses while leaving the front thread free for a lens cap or hood.
How it compares
Measured against everything we stock in Lens Filters & Polarizers, at today’s prices. Recalculated every night.
- Price $180.99
- Pricier than about 90% of the 1,281 comparable items (median $48.99).
Specifications
| Product | |
|---|---|
| Brand name | Canon |
| Model name | 2191B001 |
| Product type | Polarizer |
| Size & build | |
| Size | 77 mm |
Questions about this item
How much light does the 77mm circular polarizer block when I shoot all day in bright conditions?
The filter cuts polarized reflections from glass and water while improving colour saturation, so exposure stays consistent during long daylight sessions.
Which lenses can I mount this 77mm filter on without extra parts?
Any lens with a 77mm front thread accepts the screw-in filter directly; smaller or larger threads need a step-up or step-down ring.
Will the circular polarizer work with my older autofocus and TTL metering lenses?
Yes, the circular design polarises light without interfering with autofocus or through-the-lens metering on legacy bodies.
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