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Home  Filters  Astro Imaging Filters  ZWO 1.25 Inch Duo-Band Dual-Bandpass Narrowband Imaging Filter

ZWO 1.25 Inch Duo-Band Dual-Bandpass Narrowband Imaging Filter


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ZWO 1.25 Inch Duo-Band Dual-Bandpass Narrowband Imaging Filter
£86.00
 Inc VAT & Warranty
Availability - In stock

Z212-DB1.25

  • Description
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Product Description

The ZWO 1.25 Inch Duo-Band Filter is a dual narrowband filter primarily aimed at complementing our range of colour ASI cameras. The Duo-Band filter is aimed at the astronomer who may already own a One Shot Colour (OSC) camera and wants to image using narrowband techniques or emission objects without purchasing a mono camera, filter wheel and narrowband filter set.

The Duo-Band filter offers an economical entry into the world of narrowband imaging and can also offer a practical solution to imaging in light polluted urban areas. The dual band pass nature of the Duo-Band filter passes light at Ha (656nm) and OIII (500nm) wavelength, and can reduce the interference from natural light sources such as moonlight, or artificial light pollution such as street lighting.

It can help improve the contrast and visibility of deep sky objects such as emission nebula using a OSC camera. If you are looking for a solution to deep sky photography in light pollution area, then ZWO Duo-Band Filter will be a great choice.

Technical Specifications
Name: ZWO Duo-Band Filter
Size: Standard 1.25”
Thickness: 1.85 mm
Bandwidth: HA (15nm) OIII (35nm)
Surface quality: 60/40 (Refer to MIL-O-13830)
Schott substrate material
More than 90% transmission at major OIII line 486.nm1, 496nm and 501nm.
More than 80% transmission at Ha line 656.3nm

Delivery charge £5.95

Delivery Information

Our delivery charge is £5.95* fully insured. Orders received before 2PM normally ship that business day. We also ship direct from our suppliers all fully tracked and insured.

We use UPS, DPD, DHL, APC, DX Express, ParcelForce and Royal Mail, we do not use budget couriers, we only ship to UK mainland addresses and do not ship to forwarding agents or PO boxes.

Our Order Lookup system (see link at the top and bottom of each page) updates the order status - simply enter your order number and postcode..

*Some exceptions apply with AB, FK, HS, IV, KA, KW, PA, PH, ZE postcodes. We will quote delivery charges if applicable prior to shipping (this does not normally affect lower value items shipped by Royal Mail).

Reviews


Customer Reviews

10/10  Dual band filter  My first time with a dual band filter, and I am impressed with detail of the images as I am using a planetary camera. As always good service from Harrisons.  (30/11/2024) Richard.pigott@hotmail.co.uk - Addlestone


10/10  Perfect item with fast delivery  Ordered here as these had the cheapest delivery costs, item still arrived in only a couple of days, very happy with it. Works very well with my Dwarf II  (27/10/2024) Leigh - Caudwell


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ZWO 2 Inch Duo-Band Dual-Bandpass Narrowband Imaging Filter
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