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|---|---|---|---|---|---|
| Price /Unit | $160.29 | $157.02 | $152.11 | $145.57 | Contact US |
Mirrosky Polar Finder Equatorial Mount Calibration Device for MiniAZ Astronomical Telescope Kit
$52.15
Mirrosky MiniAZ Portable Intelligent Astronomical Telescope 53ED Guidescope Support Equatorial/Theodolite Dual Mode
$368.91
iAFS 3 Integrated Lightweight 3” Electric Auto Focuser 6KG Load Capacity Support Full-time Manual Focus Function
$504.62
Scorpio Astro 2-inch SII Filter Astronomical 5nm Ultra Narrow Band Telescope Filter with Lens Frame
How to choose:
- 3nm SHO: Especially in the case of strong light pollution, or for the resolution of the finest detail the narrower 3nm ultra-Narrowband filter is the better choice (F4.8-F16).
- 5nm SHO: If you plan to use the filter on several telescopes with different focal ratios (F4-F16) and want a good signal-to-noise ratio, the wider 5nm Narrowband filter is useful.
Description:
- It is an ultra narrowband filter designed for deep space photography with astronomical monochrome cooling CCD and modified DSLR imaging in each single-channel. Corresponding with RGB channel (HA, OIII, SII), photographers can process Hubble images by astronomical post processing software.
Features:
- No halo design, maximizing the elimination of halo effects on imaging.
- SHO LRGB parfocal, high efficient shooting, reduces frequent focusing.
- Peak transmittance of 90%, higher shooting efficiency and image contrast.
- High cut-off depth, with an average of OD4.5.
- Edge extinction, chamfering, further reducing stray light.
- Ion beam hard coating, with a harder surface, easy to clean and less prone to scratches.
- Professional design to prevent urban light pollution.
- Glass thickness of 2mm ± 0.1mm.
- ±0.1nm precise bandwidth control
- Maximum support for F4
- Support mainstream filter wheels
Package Included:
- 1 x 2-inch SII Filter
