SVBONY SV115 18nm 2 O-III Filter Narrowband Cuts Light Pollution Filter for Astronomy Telescope
$143
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Description
Narrowband O-III filter is designed for nebula observation allowing 18nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to O-III emission lines, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including HG vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).
Feature
1. Filter substrate is fine-optically polished to 1/4 wave and
2. Suitable for visual observation on most emission nebulae, planetary nebulae and supernova remnants.
3. Suitable for viewing on bright nebulae like M42 Orion Nebula in heavy light pollution.
4. Use with a large aperture telescope under clear and dark viewing conditions with good seeing.
5. Narrowband filter do not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula.
6. Thin metal cells have a clear aperture of 45mm for 2′ filters
7. Each filter comes with a plastic case with high pressure EVA case lining
Specification
1. Blocking area:400-700nm
2. Transmittance:90% at 495.9nm and 500.7nm
3. FWHM:18±2nm
4. Thickness:1.85mm
5. Surface quality:60/40 (Refer to MIL-O-13830)
6. Diameter:2 inch
7. Weight:31g
Package Includes
1 x SV115 O-III 2′ filter
Note:The filter is not suitable for solar observation. Do not use this filter to look at the sun. If you fail to follow the warning, you will be blind.
Details Picture:
| Weight | 0.04 kg |
|---|
Only logged in customers who have purchased this product may leave a review.
Related products
-
1.5-25MM Manual Zoom Adjustable Aperture Diaphragm for Microscope Camera
$53Microscope Parts & AccessoriesAdd to cartSpecificationNumber of pages:14Suitable for Camera Microscopes.The material is metal and its performance is reliable. durable.Colour:BlackMaterial:MetalMagnified diameter:1.5-25mmOuter size:37mmInside:25mmThickness:5.5mmPackage Included1 x Microscope aperture
-
100X Metal Achromatic Objective Lens for Biological Microscope
$50Microscope Parts & AccessoriesAdd to cartSpecificationProduct Type:Microscope Auxiliary LensModel Number:Objective LensMaterial:metal Magnification:100XConjugate Distance:185mmSuit Microscope:Biological MicroscopePackage includes1 x Achromatic Objective Lens1 x BoxDetails Picture:
-
KOPPACE Stereo Microscope Folding Rocker Bracket Clip Opening Size 51.5mm Microscope Clip Arm Bracket
$731Microscope Parts & AccessoriesAdd to cartSpecificationModel:KP-FLC-ACross arm length:344mmHorizontal Rotation Range:360°rotationBase end interface:22mmClip opening size:51.5mmPackage includesRocker bracket *1Fixed block*1Locking screw *2Wrench screw *1Details picture:
-
KOPPACE Microscope Bracket Lens Diameter 76mm Microscope Focusing Bracket 200mm Working Stroke
$407Microscope Parts & AccessoriesAdd to cartSpecificationModel:KP-B76Product name:Microscope BracketWorking Stroke:200mmFocus Frame Diameter:76mmThe Vertical arm High:330mmCentral Distance:150mmBase Plate size:320mmx240mmPackage includesMicroscope Focusing Bracket *1Details picture:
Customers Also Viewed
-
BEST 8801A 8 in 1 Magnetic Combination Screwdriver Set Straight Cross-Screwdrivers T3 T4 T5 T6
$20ScrewdriversAdd to cartFeaturesName:8 in 1 Multifunctional Screwdrivers SetModel:BEST-8801ABrand:BESTMaterial:45 Steel + PVC HandleSize:120 x 120 x 17mmWeight:115gAnti-slip handle, labor-saving design. Batch head was made of high strength steel.Home maintenance necessary tools, easy to carryPackage included1 x BEST 8801A 8 in 1 Magnetic Combination Screwdriver Set
-
53Pcs Crochet Hooks Kit Yarn Knitting Needles Sewing Tool Ergonomic Grip Bag Set
$23Abrasive ToolsAdd to cartDescription53Pcs Crochet Hooks Kit Yarn Knitting Needles Sewing Tool Ergonomic Grip Bag SetSpecificationsProduct Name:Knitting Needles Sewing ToolMaterial:Stainless Steel&PlasticColor:As PicturesSewing Needles:7cm/ 2.8′, 9cm/3.5′Size of Soft Silicone Handle Aluminum Hooks Crochet Hooks (14cm/5.5′):2.5mm.3.0mm,3.5mm.4.0mm,4.5mm,5.0mm,6.0mm,6.5mmSize of Bule Plastic Handle Crochet Hooks:0.6mm,0.75mm,0.9mm,1.0mm,1.1mm,1.20mm,1.5mm,1.75mmSize of Box:L*W*H/17*9*2.5cm/6.69*3.54*0.98′Quantity:53 Pcs * Knitting Needles Sewing ToolFeatures1. Durable and practical.2. Ideal tools for housewife to knit,very useful …
53Pcs Crochet Hooks Kit Yarn Knitting Needles Sewing Tool Ergonomic Grip Bag SetRead More
-
Drillpro 5pcs 5mm 4 Flutes Tungsten Carbide End Mill Cutter HRC55 AlTiN Coating End Mill Cutter
$58Milling CutterAdd to cartDescriptionDrillpro 5pcs 5mm 4 Flutes Tungsten Carbide End Mill Cutter HRC55 AlTiN Coating End Mill CutterSpecificationMaterial:Carbide tungsten steel base metalCoating:AlTiN Nano CoatedFlute:4 FlutesHighest cutting hardness:HRC55Diameter:5mmShank diameter:6mmBlade Length:13mmTotal Length:50mmFeaturesSpecial four flute design provides small chip loads and quicker removal, more sharp.AlTiN nano coating, hardness up to 55 HRC for general steel alloy steel mold steel.Fit for …
-
650A Mini Spot Welder DIY 18650 Battery Pack Adjustable Portable Spot welding Machine pen USB charger for 0.15mm Nickel Sheets
$91Spot WeldersAdd to cartInstructions*Take note to fully charge the battery before use*1. To turn on – Long press button for 3 seconds until a sound is heard.2. To turn off – Long press button for 3 seconds until a sound is heard.3. To change power setting – Short press button until a beep sound is heard and see …
Reviews
There are no reviews yet.