The Astronomik OIII CCD Filter 6nm dramatically increases the contrast between hydrogen fog and the sky background.
Due to the combination of low half-width and high transmission of almost 100% in the area of the OIII line, the filter delivers a maximum signal in the desired wavelength, but blocks all other radiation and thus ensures an extremely dark sky background.
The half width of 6nm is optimally tuned to the use of CCD and CMOS sensors with very low dark current. The 6nm filters are the first choice if you are watching from a location with extreme light pollution or generally whenever weak objects in very star-rich areas of the sky are to be recorded.
Thanks to the new MFRF coating technology, it is possible to use the filter on all devices up to an aperture ratio of f / 4.
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.
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.