Feature(may vary by option.)

●Double-sided multi-layer coating with wide band anti-reflective coating on the back to reduce reflected light; suitable for areas with light to moderate light pollution such as cities
●Ultra-thin filter cell minimises vignetting; fit for sky observation and astrophotography; a perfect gift for astrophotographers
●The precise CNC machining of metal materials for the air and aerospace ensures that the wavelength is not affected by the temperature; a very even coating of the planetary gear increases the uniformity of the filter wavelength
●Black anodized surface mat; Anti-reflective laser engraving; Long-term fading; Sturdy plastic case for easy carrying and storage
●95% transmission of the main mist emission lines; 0.1% off-band transmission especially the main emission lines for artificial light pollution

[UHC]




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Description

CLS filter with wider passage range than UHC filter and therefore more suitable for observing light to moderate light pollution, e.g. in cities.

The SVBONY CLS filter is designed to increase the contrast between fog and night sky without brightening the fog.

This cls filter can be used not only for observation of sky, but also for astrophotography.

This filter can also be used as a gift for astrophotographers who can achieve excellent results with this filter and long exposures.

CLS filter.CLS filter.
Specifications:

Type: CLS filter.

Spectrum: 300 - 700 nm.

Optical density: OD3.

Surface quality: 60/40.

Passed wave front RMS: λ / 4

Parallelism (arc second): 30s.

Ultra high contrast filter

--Double-sided multi-layer coating with a broadband anti-reflective coating on the back to reduce reflected light.

--The precise CNC machining of the aerometal material ensures that wavelength is not affected by temperature.

--High uniformity planetary wheels coating improves the uniformity of filter wavelength

CLS filter.CLS filter.

Spectral Curve.

The main emission lines of the fog: OIII (496 nm and 500 nm), H-beta (486 nm), NII (654 nm and 658 nm), H-alpha (656 nm), SII (672 nm).

The main emission lines of artificial light pollution: Na (589 nm), Hg (435 nm and 578 nm).

95% transmission of the main fog emission lines.

0.1% off-band transmission, especially the main emission lines of artificial light pollution.

The filter is designed to improve contrast and detail for visual and photographic purposes in places where light to moderate light pollution occurs like in cities.

CLS filter.CLS filter.

This EOS filter is suitable for colour CCD cameras and unmodified DSLRs.

Compatible camera type:

7D MkII, 20D, 30D, 40D, 50D, 60D ,70D, 80D, 300D; Digital Rebel XT, Digital Rebel XTi, Rebel Xsi, Rebel T1i, Rebel T2i, Rebel T3i, RebelT4i, Rebel T5i, Rebel T6i, Rebel T7i, Rebel XS. Rebel T3. Kiss Digital 350D, Kiss Digital N 400D, Kiss Digital X4 50D, Kiss X2 500D, Kiss X3 550D, KissX4 600D, Kiss X5 650D, Kiss X6 700D, Kiss X7 750D, Kiss X8 760D.

Note: This filter is not suitable for EF-S camera lenses.

Warning: Do not look into the sun with this filter.

Package includes:

  • 1 x SVBONY CLS clip-on filter.
  • 1 x robust plastic housing.
CLS filter.CLS filter.

How to use:

1. Remove the camera lens.

2. Mount the filter before the CMOS.

3. Attach the filter to ensure sticking.