Imaging Filters
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AUD $299.00Backorder Available
Out of stock
The ZWO LRGB 36mm Filters have better transmission, better coatings and better colour separation.
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AUD $225.00Backorder Available
Out of stock
- Fits Optical Tube Diameter 5 1/4" (137 mm) to 5 5/8" (145 mm)
- Safe for viewing the Sun
- Blocks 99.999% of light
- Compatibility: Infinity 102, LX70 5"
NOTE: Recommended as a perfect fit for MAK 127 Telesope OTA's
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AUD $195.00Backorder Available
Out of stock
- Fits Optical Tube Diameter 4 1/8" (106mm) to 4 3/8" (111mm)
- Blocks 99.999% of incoming light
- Safe for viewing the Sun
- Compatibility: ETX80 Observer & ETX90 Observer
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AUD $579.00Backorder Available
Out of stock
Includes H-Alpha, Sulphur II and Oxygen III.
Note: This kit comprises 1 each of ZWO filter Product No. 125802, 125810 and 125812
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AUD $139.00Backorder Available
Out of stock
ZWO Duo-Band Filter Highlights
- Aerometal material with precise CNC machining
- Fine sandblasting process and anodized finish
- Extinction treatment to prevent reflection
- Laser engraving font that will never fade
- Precise double-sided optical coating
- Fine-optically polished to ensure accurate 1/4 wavefront and <30 seconds parallelism over the both surfaces
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AUD $1,939.00Backorder Available
Out of stock
- Take beautiful images of deep-sky objects from light-polluted suburban locations with the Rowe-Ackermann Schmidt Astrograph 11 (RASA 11) using this light pollution suppression filter
- Custom designed to replace the RASA’s optical window, so you still get optimum optical performance even with the addition of the filter
- Selectively blocks unwanted light pollution while providing over 90% transmission at critical wavelengths
- Maintains a more neutral color balance than other light pollution imaging filters, perfect for imaging colorful nebulae and galaxies
- Every filter is individually tested for light transmission. A graph of test results for your specific filter is included for your reference
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)
