SVBONY SV231 Fringe Correction Filter Removes eliminates chromatic effectively corrects peripheral and improves observation performance when with

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【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

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Corrects chromatic aberration. The telescope filter prevents unwanted color banding in the blue spectral range. Minimizes the most harmful blue wavelengths in the out-of-focus region. Band 485-668nm, Tavg ＞ 95% OD ＞ 4; The greater the filter cutoff depth, the less noise there is and the higher the image contrast. Full thread design: M28.5 x 0.6 specification. Lightweight at 4.22g, male thread. The thread is wear-resistant, strong and durable. Supports stacking different types of filters. AR anti-reflective coating design. Transmittance exceeds 95%. Improves contrast and clarity of high-speed achromatic telescopes. Ensures image quality and brightness. Allows you to obtain more observable light. Superior performance coating. The telescope's color correction filter features a plasma-enhanced dielectric coating, making it hard and scratch-resistant, as well as waterproof. Standard filter size. Standard 1.25-inch astronomical filter size specification. Meets the needs of telescopes of various apertures and cameras with various target surfaces. 300-1200/NM wavelength; effectively blocks light damage and eliminates blue and purple streaks. H-alpha pass-through ＞95% [656nm], H-Beta pass-through ＞87% [486nm], OIII pass-through ＞82% [495.9nm & 500.7nm] Focuses on the photograph. Can be well in front of the optical system's focal point without sacrificing sharpness. Recommended for use with non-ED telescope tubes. For example, using it in combination with the sv48p will improve color quality. Enjoy a better stargazing experience. It can also be as a single filter in front of binoculars for focus photography with a digital camera. This color correction filter blocks 100% of the out-of-focus red (IR) portion of the spectrum without altering the image's color impression, but most importantly, it suppresses stray light interfering in the blue spectral range by over 50%. You can see the finest details of lunar craters and planetary surfaces with higher contrast. 1. Brand: SVBONY 2. Model: SV231 3. Filter Usage: Color Correction Filter 4. Filter Type: Bandpass 5. Size: 1.25 inches. 6. Substrate Thickness: 1mm 7. Clear Aperture: 26mm 8. Wavelength Range: 300-1200nm 9. Blocking: ＞OD4 10. Peak Transmittance: ＞95% 11. Surface Quality: 60/40 12. Surface Parallelism: 1/2λ 13. Thread: M28.5x0.6 14. Single Thread: Yes 15. Net Weight: 4.2g / 0.15oz