Description
Chroma OIII 3nm Narrow Band Filter
OIII 3nm Narrow Band filters isolate the doublet emission of doubly ionized Oxygen.
After ionized hydrogen, this is the next most common emission when imaging nebulae.
Doublet emission occurs at 495.9 and 500.7 nm.
UK Delivery
Prices include postage to all mainland UK addresses, except where indicated. Larger items may attract a surcharge for off shore or remote locations.
When your item is dispatched, you will receive an email from our shopping cart saying ‘Your order is complete’
We use Royal Mail and Courier services, whichever is more appropriate for the weight and value of your order.
International Delivery:
Website prices DO NOT include International delivery costs unless specified.
We are happy to ship to most countries. We use a variety of Royal Mail and Courier services, depending on the weight, size, value and urgency of your order.
Place your order via the shopping cart and you will be advised by email of additional shipping charges prior to the processing and dispatch of your order.
Or simply email us for details of shipping charges to your country before you place your order.
Some items which are particularly popular with overseas purchasers already display, in the purchase menu, combined purchase and shipping costs to various regions adjusted for UK VAT (sales tax) where necessary.
If you reside outside the European Union, please check with your customs authorities for details of any import taxes, duties and other charges that may be imposed on entry to your country. We have no control over these.
Jonathan Bennink –
The Oiii 3nm is the reason I started looking into upgrades from my 7nm ZWO filters. The 7nm you can only use during no moon and at bortle 5 or less. This 3nm version made by Chroma is a different product entirely. What a joy to use, and now I can image during half moon or less and under light polution. No sign of internal reflections, even on mag 1 or 2 stars. Incredible. My rig is 5000 pound,, so yeah, these filter hurt a bit, but compared to the rest it’s ok. It only hurts once!