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ToupTek Astro

SHO 36MM Narrowband Filters

SHO 36MM Narrowband Filters

H-alpha Filter SII Filter OIII Filter
Regular price $160.00 USD
Regular price Sale price $160.00 USD
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Description
REVIEWS

ToupTek New narrowband 36mm filter

Narrowband filters make astronomical photography more interesting. Emission nebulae contain rich and complex narrowband emission lines, such as the deep red 656.28nm Hα emission line, the red [SII] (671.6nm and 673.1nm) and the blue-green [OIII] (500.7nm and 495.9nm). 
Compared with broadband, narrowband filters only focus on a few very narrow bands, retaining only a few nanometers to a dozen nanometers of bandwidth, which can more accurately and specifically highlight the detailed features of the target in this band.

SHO 36MM Filters

The latest 36mm HSO filters of ToupTek Astro include Hα filters with a bandwidth of 3.5nm centered at 656.3nm, [SII] and [OIII] filters with a bandwidth of 4nm, with center wavelengths of 671.6nm and 500.7nm respectively.
The optical density (OD) value of the filter is as high as 5.0, which can effectively block other interfering light. An optical density (OD) of more than 5.0 means that the filter can weaken the transmitted light to less than 1/10^5 times of the original, improve imaging accuracy, and highlight the faint details of deep-space targets.

SHO 36MM Filters SHO 36MM Filters

In an environment with heavy light pollution, using a combination of narrow-band filters such as [SII], Hα, [OIII], etc. can not only resist a certain degree of light pollution and atmospheric scattering, but also bring new imaging fun in Hubble false color.

Work Showcase

Ha single exposure 300s

SHO 36MM Filters

SII single exposure 300s

SHO 36MM Filters

OIII single exposure 300s

SHO 36MM Filters

NGC2244

Photographer: Dscad 
Equipment: 
Telescope: Avery 106APO 
Camera: SkyEye62AM 
Equatorial mount: CEM40
Cumulative exposure 5h

SHO 36MM Filters

ToupTek Astro LRGB SHO filter is flat optically polished and covered with a scratch-resistant coating, which can be cleaned repeatedly. To reduce reflection, the filter is blackened around the edges to effectively block stray light caused by light reflected from the edge of the filter. The low-scattering design of the surface can also block light pollution to a certain extent and reduce interference from artificial light sources and scattering phenomena.

Customer Reviews

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B
Bartolo
Very Good Price and Quality

I live in a city with very high sky brightness so i am limited to narrow band photography. I've bought a few 36mm unmounted filters in the past with mixed results. The ToupTek 3 nM filter has given me much better results than some more expensive filters. I especially like the way the edges are darkened to reduce reflection and improve contrast. The edge they provide even makes handling the filters a bit easier. I plan on purchasing the Sii and Oiii in the future.