Tag : narrowband

Celestron Oxygen Iii Narrowband Filter – 1.25 Inch by Celestron

Posted on: November 1, 2024 /
Categories: Warehouse Express

Celestron Oxygen III Narrowband Filter - 1.25 InchCelestron Oxygen Iii Narrowband Filter – 1.25 Inch
Observe rings, clusters, and nebulas in high clarity by using the Celestron Oxygen III Narrowband Filter with your telescope. By filtering and isolating ionised-oxygen lines emitted by planets and nebulas, this filter offers clear and contrasting visuals. It further blocks the visual spectrum from 400 to 700 mm by utilising its vacuum-deposited coating, eliminating halos that form behind stars.

Price: £109.99

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Celestron Oxygen Iii Narrowband Filter – 2 Inch by Celestron

Posted on: November 1, 2024 /
Categories: Warehouse Express

Celestron Oxygen III Narrowband Filter - 2 InchCelestron Oxygen Iii Narrowband Filter – 2 Inch
Observe rings, clusters, and nebulas in high clarity by using the Celestron Oxygen III Narrowband Filter with your telescope. By filtering and isolating ionised-oxygen lines emitted by planets and nebulas, this filter offers clear and contrasting visuals. It further blocks the visual spectrum from 400 to 700 mm by utilising its vacuum-deposited coating, eliminating halos that form behind stars.

Price: £129.99

Buy Now from Warehouse Express

M27 Dumbbell Nebula Image

Posted on: October 10, 2012 /
Categories: Deep Sky Objects

I have imaged M27 before using RGB filters, but this time I decided to use narrowband filters. I used Hydrogen Alpha (Ha) and Oxygen III (OIII).

This image was taken on a Meade 127mm triplet telescope with an Atik 314L+ CCD camera. The exposures were 3 minutes long each, about 10 of Ha and 10 of OIII were stacked and aligned.

I then mapped Ha to Red, and the OIII to both Green and Blue.