SVBONY SV220 ثنائي النطاق 7nm سديم فلتر لكاميرات ملونة لقطة واحدة 2 "شنت
SVBONY 2" 7nm Duo-Band OSC FilterPP Material Plastic Box
Author:AstroCreation//www.youtube.com/watch?v=2ZG1zq9BLp0&t=172s
SV220 Dual-Band H-a 7nm & OIII 7nm Filter
The SVBONY 7nm dual band filter is designed to drastically reduce the effect of light pollution, for emission nebulae, planetary nebulae and supernova remnants imaging.SVBONY 7nm
SVBONY SV220 Dual-band 7nm Filter
The 7nm bandwidth strongly isolates the nebulae's emissions into H-Alpha (red) and OIII (green-blue) from anything else, ensuring that the shooting astronomical object is pure enough, free from non-target spectral interference.
Greatly Reduce the Effect of Light Pollution & Moonlight
The SV220 filter greatly reduces the effect of light pollution and moonlight, and makes it possible to do photography in a light polluted environmental conditions, like on your balcony or in your backyard. Meanwhile it saves your time on the road and cost on the fuel.
More Simplified for Photography and Post-processing
Comparing to the traditional DSO photography plan “Monochrome camera + SHO filters + Filter wheel” and long single channel exposure time and post-processing, SV220 dual-band filter simplifies the tediousness and difficulties of photography and post-processing, gaining full color images with one-shot.
M48*0.75 Male Thread M48*0.75
For f/5 & Slower Telescope
SV220 Dual-band Filter Installation
Package Includes:
SVBONY 2" 7nm Duo-Band OSC FilterPP Material Plastic Box
الحجم : 2 بوصة (50.8 مللي متر)
رقم النموذج : SV220
Origin : CN (المنشأ)
السُمك : 1.80mm
Substrate Thickness : 1.80mm
واضح فتحة : 44mm
اكتب : Dual Band Filters
جودة السطح : 60/40
نوع الفلتر : Duo Band OSC Filter
Blocking : OD5
Peak transmittance : 500.7nm@T>90%; 656.3nm@T>94%
Thread : M48x0.75
Wavelength Range : 300-1100nm
Net Weight: : 12.5g / 0.44oz /0.027lb
اسم العلامة التجارية : svbony
Surface Quality : 60/40
FWHM : OIII (7nm) & HA (7nm)
Clear Aperture : 44mm
Single Thread : Yes