Astrophotography Accessories
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AUD $599.99In Stock
Bring out the best in your nebulae astroimages with the H-alpha H-beta OIII (Hα-Hβ-OIII) Imaging Filter for the 8” RASA. This specialized filter allows high transmission of light from emission nebulae while blocking light pollution, helping to make your images pop with detail off the black sky background with superior contrast.
Fortunately, many sources of light pollution have relatively discreet emission spectra; they emit primarily at specific wavelengths of light. By strategically blocking these “bad” wavelengths, the filter essentially eliminates the effect of light pollution while letting the “good” wavelengths of light associated with the emission nebula pass through to the camera. You’ll notice much higher contrast in your images immediately, even if imaging from your light polluted backyard! And since the transmission at the key wavelengths is so high, the nebula will not be dimmed—only the background will be blacker.
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AUD $169.00In Stock
Learn More• High-speed air duster – up to 80 km/h wind speed
• Three adjustable modes – Turbo, Optical, Silent
• USB-C rechargeable – 1.5-hour fast charge
• Magnetic quick-release brush – for precision cleaning
• Lightweight and portable – 204g compact design -
AUD $15.00In Stock
M42 x 0.75mm Aluminium Alloy Extension Spacer Ring for telescope photography. This 15mm spacer can help you achieve precise back-focus spacing in your imaging train.
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AUD $9.95In Stock
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Why buy from Sirius Optics
Queensland's largest telescope showroom and warehouse
Run by astronomers and nature lovers, not sales people
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