Designed to improve image quality during astrophotography sessions in urban areas, the Kase 150x150mm Wolverine Night Pollution Filterreduces the appearance of light pollution from artificial light sources such as commercial or residential buildings, brightly lit billboards, streetlamps, and sports and entertainment venues that can produce a yellowish cast in your images.

These artificial light sources create a form of light pollution known as sky glow, where individual stars, the Milky Way, and other astronomical objects in the night sky are obscured. Employing this filter can improve the image quality by blocking the yellow light from sodium-vapor lamps, mercury-vapor lamps, or low Color Rendering Index LEDs. By preventing the dominant wavelengths of light associated with the color of those lamps from being recorded, the visibility of astronomical objects is enhanced. An additional IR-blocking lens coating is applied that prevents ghosting and blurriness from appearing on your images when using sensors that are sensitive to those low wavelengths.

This version of the Light Pollution Filter is offered unmounted for custom applications and can fit into standard 150x150mm filter frames. Made of B270 optical glass, the filter is engineered for longevity with improved hardness to make it shock and scratch resistant, with multi-coatings that allow water and oil to bead and be cleaned off without leaving residue.

Ideal for Astrophotography & Imaging    Blocks Light from Artificial Lights    Eliminates Yellow Cast to Images    Multi-Coated B270 Optical Glass    Hardened: Scratch-Proof, Shock Resistant    Oil and Waterproof Coatings    IR-Blocking Lens Coatings    Unmounted for Custom Applications    Fits 150x150mm Filter Frames

Related Questions and Answers

Q: 1. Does this allow you to screw on a third-party filter such as a tiffen filter?

A: The Kase Wolverine Magnetic Filter Adapter Ring (67mm) screws on to the filter threads of a lens with 67mm size threads. You could only use magnetic filter with this adapter r. You cannot use filters with threads.

Q: 2. Is this the same as the Kase 100mm Starglow? I ask because Kase Filters doesn't have an AstroBlast listed on their website.

A: No, these filters are different.

Q: 3. what is the light reduction in stops?

A: Because the Kase 150x150mm Wolverine Neutral Night Light Pollution Filter selectively blocks only certain wavelengths of light (yellow light from sodium-vapor lamps, mercury-vapor lamps, or low Color Rendering Index LEDs), there is no overall assignment of light-blocking capability for this filter.

Q: 4. Will this work with Kase KW Revolution Magnetic Filters?

A: Yes, the Kase Wolverine Magnetic Filter Adapter Ring (82mm) will work with the Kase Revolution Filters.

Q: 5. Is this compatible with the A7CR?

A: Yes, the Kase Light Pollution Clip-In Filter for Select Sony Alpha Cameras is compatible with the Sony a7CR Mirrorless Camera.

Q: 6. Are these compatible with the Freewell magnetic system?

A: Yes. The Kase Wolverine Magnetic Filter Adapter Ring (77mm) will work with the freewell magnetic system.

Q: 7. Does this filter work with the A7r4?

A: Yes, it is compatible with the A7R4. It is listed as compatible on their website

Q: 8. What is the thickness of this filter? 2mm?

A: The Kase 150 x 150 Wolverine neural night LiPo filter is 2mm thick.

Q: 9. Will this work for any filter

A: No, Is not compatible with any filter. Kase Wolverine Magnetic Filter Adapter Ring (82mm) is designed for Magnetic non-threaded steel filter rings. Most brands use aluminum or brass on their filter rings which are non-magnetic materials.

Q: 10. Does this fit the sony a6500?

A: The Kase Light Pollution Clip-In Filter for Select Sony Alpha Cameras is designed for the Full-Frame Sony Alpha cameras listed under the "Compatible Cameras" section under the Overview tab on our website, which would include the Sony Alpha a9 II, a9, a7R IV, a7R III, a7R II, a7R, a7S III, a7S II, a7S, a7 III, a7 II, and the original a7 Mirrorless Digital Camera. It is not compatible for use with APS-C sensor Sony Alpha mirrorless digital cameras such as the Sony Alpha a6500 Mirrorless Digital Camera.