TS-Optics CCD Reducer 2″ 0,67× - For RC

TS-Optics 2″ 0.67× CCD Reducer – For RC, refractors, and Maksutov-Cassegrain telescopes

The TS-Optics CCD Reducer 0,67× is a versatile focal reducer originally designed for telescopes. Ritchey-Chrétienbut also perfectly suited to Celestron EHD, Meade ACF, Maksutov-Cassegrain and f/8 or slower refractors with sufficient backfocus. It allows the focal length to be reduced and the f/ ratio to be accelerated, halving exposure times while enlarging the field of view.

Highlights

• Reduction 0.67× : an RC f/8 becomes f/5.3, an f/10 becomes f/6.7 → exposure times reduced by more than 50 %.
• Simple connection : Standard 2″ barrel compatible with all 2″ eyepiece holders.
• M48 thread on camera side 85 mm optimum backfocus (70-90 mm usable).
• 2″ filter thread integrated on the telescope side → direct compatibility with your filters.
• Illuminated field up to 29 mm, perfect for sensors APS-C (DSLR and astro cameras).
• Versatile : Primarily for photography, but can also be used as a viewfinder with a 1.25-inch angled adapter.

Why use a 0.67× CCD reducer?

In astrophotography, optical speed is crucial: reducing the focal length means widening the field while capturing more signal per unit of time. With this reducer, your telescopes become brighter, your shorter exposures and your images richer in detail. It's the ideal accessory for photographing diffuse nebulae and wide-field galaxies.

Compatibility

The CCD47 is optimized for RC GSO/TS/AstroTech, but also works very well with other instruments that have a 2-inch eyepiece holder. It is especially recommended for:

• RC excellent illumination and correction up to APS-C.
• f/8+ refractors good correction with sufficient backfocus.
• Maksutov-Cassegrain improves imaging speed.
• Celestron EHD / Meade ACF wider field and shorter exposure times.

Possible adaptations

• DSLR via M48 thread → e.g. SKM48-EOS adapter for Canon.
• CCD via T2 : TSFA2 (38.2 mm, extension) or TSM48-T2 (3.5 mm, compact for OAG/filter wheels).

Technical specifications

In the box

• 2" 0.67× CCD Reducer
• Built-in 2″ filter thread

In a nutshell

The TS-Optics 2″ CCD Reducer 0.67× is an essential accessory for speeding up your f/8+ instruments and drastically reducing exposure times. Compact, easy to adapt and optimized for RCs, it broadens your photographic field while improving the productivity of your astrophoto sessions.