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ZWO 31mm Narrowband Filter Set with OIII, SII, & Ha Filters – NB7nmD31 ZWO

$ 127,50

SKU: mode_100000858130 Category: Telescope Accessories Tags: 31mm Filters, Astrophotography, Filters, H-Alpha CCD Filters, Oxygen III Filters, Photographic, Photography Accessories, SII CCD Filters, ZWO

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ZWO Narrowband Filter Set with 31mm OIII, SII, and H-Alpha Filters

All of the 31mm filters in this ZWO Narrowband Filter Set are unmounted. These narrowband filters are fine-optically polished to reach an accuracy of 1/4 wave. Their performance is further enhanced by multiple layers of anti-reflection coatings.

ZWO 31mm Unmounted OIII Filter

OIII, or doubly ionized oxygen, emits light in the blue/green, or teal portion of the spectrum near 500 nm. Planetary nebulae and supernova remnants emit most of their light in the OIII line.

ZWO 31mm Unmounted Ha Filter

Hydrogen-Alpha is the most dominant emission line in star-forming regions. H-Alpha light is created by atomic hydrogen, and is responsible for the red color seen in most nebulae.

ZWO 31mm Unmounted SII Filter

Sulfur is in the deep red of the spectrum near 672 nm. When combined with H-a and OIII, these three filters will produce images with colors that are reminiscent of those taken by the Hubble Space Telescope.

Quick Shipping and Professional Packaging

Due to our longstanding partnership with UPS FedEx DHL as well as other major international carriers, we are able to provide various shipping options. Our warehouse personnel are well trained and will be able to pack your goods in accordance with the exact and precise specifications. Your goods are thoroughly checked and securely secured prior to shipment. Everyday we deliver hundreds of packages to our customers from all over the world. Our determination to be the biggest online retailer in the world is shown by this. The warehouses are located situated in Europe in the same way as they are in the USA.

Note: Orders containing multiple items will have a separate processing period for each item.

We will carefully examine all products before they are shipped. Today, the majority of orders will be delivered within 48 hours. The delivery time will be between 3-7 working days.

Returns

We don't manage the stock at our warehouse and factory. The actual inventory may fluctuate at any time. It's possible that you may not receive your order once it's been placed.

Our policy is for 30 days. We are unable to return or exchange your purchase after 30 days since the purchase.

In order for your item to be eligible for return the item must not be opened and in the condition you received it. It must also remain in the original packaging.

ZWO 31mm Narrowband Filter Set with OIII, SII, & Ha Filters – NB7nmD31 ZWO

ZWO Narrowband Filter Set with 31mm OIII, SII, and H-Alpha Filters

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