Feature(may vary by option.)

●Corrects chromatic aberration. The telescope filter prevents unwanted color banding in the blue spectrum range. Minimizes the most harmful blue wavelengths in unfocused areas. Band 485-668nm, Tabg>95%
●OD>4; The larger the filter cut-off depth the more the noise and the better image contrast
●Full Thread Design: M28.5 x 0.6 Specifications 4.22g light weight, screw Thread is not easy to wear, strong and durable. Supports different types of filters overlapping
●AR anti-reflective coating design Transmittance is more than 95%. Enhances the contrast and clarity of the high-speed erasing telescope. Ensure image quality and brightness. Get more observable light
●Performance coating The telescope color correction filter has a plasma reinforced dielectric coating which makes it harder. Scratch and water resistant filter
●Standard Filter Size Standard 1.25" astronomy filter size specs Meet the needs of different aperture telescopes and cameras with various target surfaces
●300-1200/NM wavelength; Effectively blocks light damage and removes blue and purple streaks. H-alpha pass rate >95% [656nm] H-Beta pass rate >87% [486nm] OIII pass rate >82% [495.9nm & 500.7nm]

[2 inches]

[1.25 inch]

Description

SVBONY SV231 Fringe Correction Filter

Specially formulated filter for chromatic aberration and chromatic aberration and enhances color quality and contrast in the image by removing chromatic aberration and increasing color saturation.

If you have ever been bothered with the problem of chromatic aberration on the end of your telescope, then try this.You may get a delightful surprise.
Optical density is over 4.Effectively block light damage and reduce noise.
Φ31.7x7mm.M28.5x0.6.Standard 1.25 inch astronomical filter Size Specifications: Meet the needs of telescopes of different caliber and cameras with various target surfaces

1 Chromatic aberration reduction 2 >OD4 3 1.25 inch-Φ31.7x7mm

AR anti-reflective coating

Adopts AR anti-reflection coating, which ensures image quality and brightness at 95% H-alpha >95% [656nm] H-Beta>87% [486nm] OIII >82% [495.9nm & 500.7nm]

Plasma reinforced dielectric coating

Plasma reinforced dielectric coating provides a hard, scratch-resistant and waterproof filter

NIR is blocked up to 1150nm, so even when using CCD/CMOS cameras, the planet details are more clear.
Much before the focus of optics, it can be used as a single filter before the focus of digital camera binoculars without compromising clarity.
$Astronomical Telescope Refractor Filter$

Compatible with SV503 to allow astronomical observations with no color difference
Compatible with SV48P to observe celestial objects without color difference

1 NIR - 1150nm 2 Much before the focus of the optical system 3 Mix and match with different items 4 Mix and match with different items

High transmittance

High transmittance means high level of transparency, allowing a large amount of light or energy to pass through.

300~1200/NM

Filters work effectively when wavelengths are between 300 to 1200/NM.

Product Specifications

Product Specifications	1.25 in.
Cut-off Wavelength	300-400nm & 720-1200nm
Lens Size:	Φ31.7x7mm
Cut-off Depth	>OD4
Weight	4.22g
Overall vector degree in visible light range	<5%
Thread Type	Full screws (both threads)
Surface	60/40

Screw Specifications	M28.5 x 0.6
Coating	AR Anti-Reflective Coating [480-720nm] Peak Pass Rate >95%
Material:	6061T Aluminum
H-alpha	>95% [656nm]
H-Beta	>87% [486nm]
OIII	>82% [495.9nm & 500.7nm]
Transmission Bandwidth	485-668nm
Transmittance	Tavg>95%