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SVBONY SV220 ثنائي النطاق 7nm سديم فلتر لكاميرات ملونة لقطة واحدة 2 "شنت

USD 194.57USD 204.81

SVBONY SV220 ثنائي النطاق 7nm سديم فلتر لكاميرات ملونة لقطة واحدة 2 "شنت

Description

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

Specification

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

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