The Heliopan 27mm Clear Protection Filter is a simple, clear filter designed for general protection to the front of your lens. This optically clear filter helps to reduce dust, scratches, moisture, and other elements from damaging your lens without affecting the overall image quality.

The front and rear surfaces of the filter both feature a single anti-reflection coating. Each coating helps to increase light transmission by reducing reflections, scattered light, and ghosting. Additionally, they offer protection to the filter substrate while helping to keep the glass clean for longer than uncoated glass.

This Heliopan filter is constructed from Schott glass for increased optical clarity and color fidelity. It features a brass filter ring for durability as well as jamming prevention.

Filter for Protecting Lens    27mm Front Filter Threads    Front and Rear Coating    Schott Glass Construction    Brass Filter Ring

Clear filter offers general protection for your lens against the elements.

Single coatings on both the front and rear offer protection to the glass and help to improve light transmission and image quality.

Constructed from Schott glass for optical clarity.

Brass filter ring helps to prevent jamming and provides additional strength.

Dual threading with 27mm front filter threads permits combining with other filters.

Related Questions and Answers

Q: 1. In May 2024, does new B+W T-Pro Clear Filter comes in leather black B+W pouches (ones without dust issues.)?

A: Yes, the B+W 62mm T-PRO Clear Filter comes with the leather case inside of a seal carbon box. Due to the manufactures rules and conditions we are not authorized to open a seal box. However I own several of this filters, and if there is any manufacturer dust on the filter, they are very easy to clean using a LensPen cleaner or a microfiber cleaning cloth.

Q: 2. What is the percentage light transmission for this clear filter?

A: The Canon Drop-In Clear Filter A does not have a specified light percentage transmission. However they do list this as having no filter effect.

Q: 3. Does this protection filter come with the 4 mounting screws?

A: the necessary mounting connections are already on the TVLogic 7" F-7H MK2 FHD HDR Field Monitor

Q: 4. Will the Canon RF 24-70 f2.8 L lens cap and hood fit with this filter attached?

A: The lens cap and hood included with the Canon RF 24-70mm f/2.8 L IS USM Lens will fit with the attached B+W 82mm T-PRO Clear Filter.

Q: 5. Can this filter be used with a Hasselblad Zeiss 150 mm f4 lens?

A: Our research shows that the Zeiss 150mm F/4, which is a vintage lens, has a 52mm filter thread. This filter will not work. Heliopan does offer this same filter with a 52mm Thread, it is B&H # HE2252. https://bhpho.to/2DcH23B

Q: 6. Clear filter or UV for a Sony 24-70mm f/2.8 GM lens?

A: Clear filters are recommended for digital cameras. UV filters have a slight optical effect that can soften the image slightly.

Q: 7. Will this create vignetting at 16mm when put on Sony 16-35mm GM lens?

A: It is not unusual to experience vignetting when using ultra wide lenses.

Q: 8. Will I still be able to use the lens hood on the Sigma 30mm 1.4 dc dn, on my Sony A6400 with this clear filter?

A: Yes, using the B+W 52mm T-PRO Clear Filter on the Sigma 30mm f/1.4 DC DN Contemporary Lens (Sony E) the dedicated hood the lens came with will fit.

Q: 9. Why does it even need the glass? Should just be the slot cover. More glass = more potential for flare.

A: The drop in filter protects the sensor from dust and condensation and does not cause flare.

Q: 10. Is this just a rebranding of the Olympus PRF-ZD72 (same glass same coating)?

A: The OM SYSTEM PRF-ZD72 Pro Clear Protection Filter (72mm) is the same as the Olympus 72mm PRF-ZD72 PRO ZERO Protection Filter.