HKM-542867 Light Pollution Suppression Filter for Canon EOS Cameras - Compatible with 7D Mark II, 80D, 77D, and More

Introducing the HKM-542867 Light Pollution Suppression Filter, an essential accessory for photographers using Canon EOS cameras, including models like the 7D Mark II, 80D, and 77D. This filter is designed to enhance your astrophotography experience by minimizing the effects of light pollution, allowing you to capture clearer and more vibrant images of celestial objects.

Crafted with precision, the CLS EOS-C filter employs advanced multilayer anti-reflection film and a non-cement optical substrate coating to ensure durability and scratch resistance. Utilizing electron beam gun evaporation with ion-assisted deposition technology, this filter maintains its performance even in fluctuating temperatures. The innovative planetary rotation system guarantees accurate and uniform coating, enhancing high-pass band transmission rates while effectively reducing out-of-band optical density.

Measuring ultra-thin, the HKM-542867 filter minimizes vignetting, making it perfect for a variety of photography situations. Its construction includes precision CNC machining using aviation-grade metal, complemented by a matte black anodizing treatment for added durability and aesthetic appeal. The anti-reflection laser engraving ensures that markings remain visible and unaffected by wear over time.

One of the key features of the HKM-542867 is its impressive transmittance of major nebula emission lines, boasting 90% for wavelengths like Ha 656nm and OIII 496nm. Additionally, it effectively reduces the transmission of unwanted artificial light pollution, such as sodium and mercury emissions. This filter is suitable for color CCD cameras and unmodified DSLRs, offering a wider passband than traditional UHC filters, making it a notable choice for mild to moderate light pollution conditions.

Please note that while the HKM-542867 Light Pollution Suppression Filter enhances contrast between nebulae and the night sky, it does not eliminate light pollution or brighten objects. This filter is not intended for solar viewing, and caution should be taken to avoid exposure to direct sunlight.

Elevate your nighttime photography with the HKM-542867 filter—an ideal companion for capturing the beauty of the cosmos while minimizing the distractions of light pollution.

Product information:

The CLS EOS-C is compatible with the following camera types: 7D Mark II, 80D/800D, 77D/70D/760D/750D/700D 650D/600D, 550D/500D, 400D, 100D/1100D/1200D/1300D.
Note: This filter does not work with EF-S camera lenses.

Features:
1. Multilayer anti-reflection film
2. Non-cement optical substrate coating
3. Electron beam gun evaporation technology with ion-assisted deposition coating technology, with durability and scratch resistance, as well as stability on CWL (center wavelength), which is not affected by temperature changes.
4. The planetary rotation system provides the accuracy and uniformity of the coating, ensuring the high-pass band transmission rate and the out-of-band optical density value.
5. Ultra-thin filter, by minimizing vignetting
6. Precision CNC machining sandblasting of aviation metal materials
7. Matte treatment with black anodizing treatment
8. Anti-reflection laser engraving does not fade
9. 90% transmittance of major nebula emission lines (i.e. Ha 656nm, OIII 496nm & 500nm, SII 672nm and H-beta 486nm).
10. 0.1% of out-of-band transmission, especially the main emission lines of artificial light pollution (ie Na 589nm, Hg 435nm and 578nm).
11. Suitable for color CCD cameras and unmodified DSLRs
12. CLS has a wider passband than UHC and is therefore preferred when observed under mild to moderate light pollution.
13. Light pollution filters do not remove the effects of light pollution or increase the brightness of objects. In many cases, they increase the contrast between the nebula and the night sky without brightening the nebula.
14. WARNING: SVBONY's filter is not designed for solar viewing. Do not use the SVBONY filter to look at the sun. If you don't follow the warnings, you will be blinded.

Packing list:

Filter*1