Exclusive offer from Cyclops Optics: Besides the usual FREE Shipping Offer for most countries worldwide, now we further offer a FREE LensPen (original value US$11), allowing you to clean the surface of your optical equipment safely. In case your chosen option is out of stock, we will send another version for you.

STC Astro Duo-Narrowband enables astrophotographers to capture two narrowband emission lines simultaneously, rendering ultra high contrast nebula images even if under the influence of strong light pollution in city. This ultimate dual narrowband filter enables one-shot-colour cooled camera and DSLR users to capture narrowband signals efficiently. 

Includes

• STC Duo Narrowband Clip filter for Olympus M4/3 mirrorless camera (see compatible list below)
• STC high quality microfiber cleaning cloth

Highlights

• Passes two major narrowband 10nm transmission lines — Ha (656.3nm) & O-III (500.7nm) at high transmission rate (~80% or above)
• Suitable for DSLR and One-Shot-Colour Camera
• Superb contrast for nebulosity 
• Available in 48mm standard size and Clip Mount version (see bottom of page)

Compatible Olympus M43 bodies

• E-M1 Mark II
• E-M1X
• E-M1
• E-M5 Mark II
• E-M10 Mark III
• E-M10 Mark II
• E-M10
• PEN-F
• EPL 9
• EPL 8
• EPL 7

Compatible Olympus M43 lenses

• M.ZUIKO DIGITAL ED 8mm F1.8 Fisheye PRO
• M.ZUIKO DIGITAL ED 17mm F1.2 PRO
• M.ZUIKO DIGITAL ED 25mm F1.2 PRO
• M.ZUIKO DIGITAL ED 45mm F1.2 PRO
• M.ZUIKO DIGITAL ED 300mm F4.0 IS PRO
• M.ZUIKO DIGITAL ED 7-14mm F2.8 PRO
• M.ZUIKO DIGITAL ED 12-40mm F2.8 PRO
• M.ZUIKO DIGITAL ED 12-100mm F4.0 IS PRO
• M.ZUIKO DIGITAL ED 40-150mm F2.8 PRO
• M.ZUIKO DIGITAL 17mm F1.8
• M.ZUIKO DIGITAL 25mm F1.8
• M.ZUIKO DIGITAL 45mm F1.8
• M.ZUIKO DIGITAL 14-42mm F3.5-5.6 II R
• M.ZUIKO DIGITAL ED 12mm F2.０
• M.ZUIKO DIGITAL ED 30mm F3.5 Macro
• M.ZUIKO DIGITAL ED 60mm F2.8
• M.ZUIKO DIGITAL ED 75mm F1.8
• M.ZUIKO DIGITAL ED 9-18mm F4.0-5.6
• M.ZUIKO DIGITAL ED 12-50mm F3.5-6.3 EZ
• M.ZUIKO DIGITAL ED 14-42mm F3.5-5.6 EZ
• M.ZUIKO DIGITAL ED 14-150mm F4.0-5.6 II
• M.ZUIKO DIGITAL ED 40-150mm F2.8 PRO
• M.ZUIKO DIGITAL ED 40-150mm F4.0-5.6 R
• M.ZUIKO DIGITAL ED 75-300mm F4.8-6.7 II

STC Astro Duo-Narrowband Transmission Characteristics

* This diagram is for illustration purpose only

STC Technologies

STC utilises ion beam assisted deposition (IBAD) to solidly bind the coatings onto Schott B270 glass, the very same glass used in Zeiss lenses. Such technique enhances the light transmission and also durability of the 160 layers of coating deposited to produce the advanced filter characteristics shown above.

With patented Ultra Layer® technology, both surfaces of Astro-Multispectra are coated with Anti-Smudge nano-coating to prevent dust and water from settling on the filter surface. Dew will not form and your filter is aways clean. If necessary, it's effortless to clean.

Warranty

12 months warranty covering defects due to manufacturing and workmanship

Specifications

Interested in other Clip Mount version? Sign up here!