Canon Circular Polarizing Filter - 72mm
Best current price£189.99from Canon UK
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Product Information
Full details
The Canon PL-C B 72 mm Circular Polarising Filter is an essential tool for landscape and architectural photographers looking to improve image clarity and color depth by eliminating unwanted glare. It is designed for lenses with a 72mm filter thread and excels at boosting sky and foliage contrast, though it requires manual adjustment to achieve the desired polarizing effect.
All features
| Brand | Canon |
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Extended Product Information
FAQs
Can I leave this filter on my lens all the time?
While possible, it is recommended to remove it in low-light environments because it reduces the amount of light reaching the sensor.
Does this filter affect autofocus?
No, the circular design is specifically made to avoid interfering with TTL metering and autofocus sensors.
Will this fit a 67mm lens?
No, you would need a 72mm to 67mm step-down ring, though this may cause vignetting.
What happens if I rotate the filter too far?
Rotating the filter simply changes the angle of polarized light being blocked; there is no 'too far', just different levels of intensity.
Does this filter work for night photography?
It is generally not recommended for night photography as the light reduction will necessitate longer exposures.
Troubleshooting
The filter is stuck and won't unscrew from the lens.
Use a specialized rubber filter wrench to provide a better grip, or gently tap the side of the filter rim to break the tension.
My images look too dark.
Circular polarizers inherently reduce light. Increase your exposure compensation or use a wider aperture/slower shutter speed.
Vignetting is visible in the corners of my wide-angle shots.
Ensure the filter is screwed on evenly. If using a lens hood, ensure it is properly aligned to avoid clipping.
Pros and Cons
Pros
- Significantly improves contrast and clarity in landscape photos
- Does not interfere with camera autofocus or metering
- Slim profile prevents dark corners (vignetting)
- High-quality optical construction from Canon
Cons
- Requires manual rotation to find the optimal polarization angle
- Reduces the amount of light entering the lens by 1-2 stops
- Only compatible with lenses featuring a 72mm thread size
Setup, Compatibility & Care
To install, simply screw the filter into the front threads of your 72mm lens in a clockwise direction. Ensure you do not over-tighten, as this can make removal difficult. For compatibility, verify your lens barrel has a 72mm filter thread symbol (represented by a circle with a slash through it). To care for the filter, use a high-quality microfiber cloth and a lens cleaning solution to wipe away fingerprints or dust. Always store the filter in a protective case when not in use to prevent scratches on the glass surface.
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