SVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal Bundle with SV231 Color Correction Filter, Correct Edge Chromatic Aberration for Moon Planetary Visual and Astrophotography

The SV231 color correction filter is designed with full thread and standard size to compatible with different types of telescope. High transmittance means high level of transparency, allows a significant amount of light or energy to transmit through it. You can use the SV231filter with SV48P telescope for astronomical observations without color difference to obtain the most exquisite details of lunar craters and planetary surfaces. When the telescope is pointed at or near the zenith (directly overhead), mirror diagonal telescope allows for more convenient and comfortable observation. SV188P uses a high-reflective dielectric coating that can achieve a reflectivity of 99%; more light means you will get brighter pictures. Just like looking in a mirror, the image is correct up and down; left and right are flipped.

• Correct chromatic aberration; SV231 telescope filter prevents unwanted color banding in the blue spectral range; minimizes blue wavelengths in out-of-focus areas
• OD＞4; the higher the filter cut-off depth; the smaller the noise and the higher the imaging contrast
• Full thread design; M48x0.75 specification; male thread; thread is not easy to wear; you can overlay other filter to use
• SV188P diagonal uses a high-reflective dielectric coating; more durable and more reflective than enhanced aluminum coating; reflectivity is up to 99%; for maximum field of view brightness and clarity
• 2-inch dielectric mirror diagonal; suitable for 2-inch telescopes and eyepieces; supports 2-inch filter installation; comes with a 2-inch to 1.25-inch converter; can be connected to 1.25-inch eyepieces; barlow and other telescope accessories