Telescope Accessories
-
AUD $49.00In Stock
-- Learn More -
AUD $399.00In Stock
The ZWO 7nm OIII filter is centered around the Oxygen III band of 501nm. Oxygen III or double ionised oxygen occurs at primarily at 500.7nm and secondarily 495.9nm. The highest levels of OIII are usually found in diffuse and planetary nebulae. The OIII emission lines were first discovered in the 1860s in spectra of planetary nebulae. OIII wavelengths relate to the green-turquoise-cyan in colour on the spectrum whilst the narrowband width makes the background space very black.
Learn More -
-
AUD $99.00In Stock
If you'd like to enhance your astronomy experience with some colour planetary filters, why not go for the saxon 2" Colour Planetary Filter Set?
This set comes with four filters of yellow, red, dark green and blue.
Learn More -
AUD $219.00In Stock
The ZWO narrowband O-III 7nm filter is designed for nebula observation allowing 7nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, blocking out all other light. Adding the ZWO O-III Narrowband filter to your imaging collection will help you go beyond the RGB imaging and will help capture your favorite nebulas in a totally new light, no matter how polluted your skies may be!
Learn More -
-
AUD $139.00In Stock
- Reduce the amount of time spent waiting for your big GoTo Dobsonian to reach thermal equilibrium with the Orion Three-Fan Cooling System
- Three-fan set custom designed to fit the Orion XX14i IntelliScope, XX14g GoTo and XX16g GoTo Dobsonian primary mirror cells
- Enjoy optimized visual performance quickly
- Each fan boasts 33.4 CFM (cubic foot per minute) air flow to help significantly accelerate cooling of your Dobsonian telescope's optics
- Quiet fans operate without vibrations
-
AUD $169.00In Stock
Get better views from your telescope with the saxon Cielo HD 25 mm 1.25" ED Eyepiece. A premium six-element fully multi-coated eyepiece with extra-low dispersion glass, this eyepiece promises excellent, clear, well-corrected images for any astronomy viewing.
Compatible with all telescopes.
Learn More -
AUD $169.00In Stock
Get better views from your telescope with the saxon Cielo HD 18 mm 1.25" ED Eyepiece. A premium six-element fully multi-coated eyepiece with extra-low dispersion glass, this eyepiece promises excellent, clear, well-corrected images for any astronomy viewing.
Compatible with all telescopes.
Learn More -
AUD $169.00In Stock
Get better views from your telescope with the saxon Cielo HD 12 mm 1.25" ED Eyepiece. A premium six-element fully multi-coated eyepiece with extra-low dispersion glass, this eyepiece promises excellent, clear, well-corrected images for any astronomy viewing.
Compatible with all telescopes.
Learn More
Why buy from Sirius Optics
Queensland's largest telescope showroom and warehouse
Run by astronomers and nature lovers, not sales people
Expert advice and lessons
Secure checkout with multiple payment options
30 day returns (T&Cs apply)
