Web4,887 Likes, 18 Comments - Passione Astronomia® (@passioneastronomia) on Instagram: "Una meraviglia: Saturno ripreso nel giorno dell’opposizione! 敖 Questa è una ... WebA Filter of Great Quality The L-Ultimate filter from Optolong sports a number of high quality manufacturing features. Offered in a 2" threaded form factor, this filter is compatible with all 2" accessories with accommodating threads. Additionally, the glass has a very small optical thickness, at 1.85 mm.
Optolong L-Pro Full-Frame DSLR Clip Filter (Canon EOS-FF)
WebMar 22, 2024 · Thickness: 1.85mm Tpeak: T>90% Blocking range: 300-1000nm Blocking depth: light pollution line blocking >99% Surface quality: 60/40 Transmitted Wavefront RMS: λ/4 Parallelism: 30s Optolong L-eXtreme Filter Transmission Chart The transmission chart above shows the band passes at OIII and Ha. WebJul 16, 2024 · Product Description. Optolong L-Pro (L-Professional) is a multi-bandpass filter which selectively suppresses the transmission of light pollution lines. For example, mercury vapor lamps, high and low pressure sodium vapor lights and skyglow caused by emission from neutral oxygen in our atmosphere. birchin cross road
Optolong L-Pro Filter 1.25" / 36mm / 2" (48mm) (FREE International …
WebThickness: 1.85mm Tpeak: T>90% Blocking range: 300-1000nm Blcoking depth: light pollution line blocking >99% Surface quality: 60/40 Transmitted Wavefront RMS: λ/4 Parallelism: 30s ※This curve is only for reference, … WebShortpass Filter 470nmFilter Type : Short Edge FilterEdge Wavelength: 470nm. The Logo … WebShortpass Filter 470nmFilter Type : Short Edge FilterEdge Wavelength: 470nm. The Logo of Optolong Optics Co., Ltd. ... Thickness. Mounted or Not Optional. Application. Need Quantity. AOI ... How did you hear about Optolong Optics? dallas fort worth area flea market