Antlia M48 Adapter with Triband RGB II Ultra Filter for Sony E cameras (Antlia, SKU: M48-RGB II-E) connects a Sony E-mount camera to an M48 × 0.75 interface, allowing it to be attached to a suitably terminated astrophotography imaging train. The integrated Triband RGB II Ultra filter reduces the effects of light pollution while transmitting spectral ranges useful for imaging broadband targets and emission nebulae. The construction provides a distance of 55 mm from the camera sensor to the M48 interface plane.

Key features

• combination of a Sony E camera adapter and light-pollution filter in one component
• M48 × 0.75 interface designed for use with a suitably terminated astrophotography imaging train
• 55 mm distance from the camera sensor to the M48 interface plane
• multi-band filter characteristics covering important RGB spectral ranges and the Hα, NII, SII, OIII and H-beta lines
• reduction of the effects of selected artificial-lighting bands on captured data
• balanced transmission helping to maintain more natural colour reproduction of broadband targets
• suitable for imaging galaxies, emission and reflection nebulae, and star clusters
• broad transmission bands designed for use with optical systems as fast as f/2
• coatings developed to reduce halos and internal reflections
• improved contrast and signal-to-noise ratio when imaging under light-polluted skies

Set contents

• Antlia M48 adapter for Sony E cameras with integrated Triband RGB II Ultra Filter

Technical specifications

• product type: camera adapter with integrated light-pollution filter
• camera mount: Sony E
• telescope-side interface: M48 × 0.75
• distance from the sensor to the M48 interface plane: 55 mm
• filter type: Triband RGB II Ultra multi-band filter
• Hα wavelength: 656.3 nm
• NII wavelengths: 654.8 nm and 658.3 nm
• SII wavelengths: 671.6 nm and 673.1 nm
• OIII wavelengths: 495.9 nm and 500.7 nm
• H-beta wavelength: 486.1 nm
• peak transmission: over 92% for Hα, NII, SII, OIII and H-beta
• out-of-band blocking: at least OD4 over the 300–1050 nm range
• compatible optical-system focal ratio: down to f/2
• application: astrophotography of galaxies, emission and reflection nebulae, and star clusters
• SKU: M48-RGB II-E

The Antlia adapter allows a Sony E camera to be connected to an M48 astrophotography imaging train while reducing the effects of light pollution without requiring a separate filter holder.