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About this product
Transform your astrophotography setup into a high-performance imaging rig with this dedicated optical corrector. Engineered specifically for the Sky-Watcher Esprit 80 ED PRO triplet refractor, it corrects inherent field curvature to deliver pinpoint stars across a generous imaging circle. Whether you shoot with a DSLR or a cooled dedicated astronomy camera, this precision-threaded doublet ensures your camera sensor captures crisp, distortion-free detail from frame centre to corner.
33mm Image Circle
Broad edge-to-edge coverage
Matched Doublet
Custom-tuned for Esprit 80
M48 Fitting
Large clear aperture reduces halation
5-Year Warranty
Reliable manufacturer backing
Precision Optical Alignment
The doublet lens group is matched directly to the optical characteristics of the Esprit 80 ED PRO refractor. Precision threading guarantees that the triplet objective and the corrector lenses sit perfectly square and centred along the optical axis, eliminating tilt and keeping off-axis stars sharp and round across the full 33mm imaging plane.
Versatile Camera Integration
Configuring your imaging train is straightforward thanks to versatile spacing options. Using the included M48 spacer provides the standard 55mm working distance ideal for DSLR T-rings and popular astro-imaging gear, while unthreading the spacer exposes the native M62 thread to deliver 61mm of back focus for complex filter wheels and dedicated CCD assemblies.
Wide M48 Clear Aperture Features an oversized M48 rear fitting designed specifically to minimise edge vignetting and reduce unwanted halation around brighter stars.
Key Features
Bespoke Doublet Optics – Custom optical formulation tailored specifically for the Sky-Watcher Esprit 80 ED PRO triplet refractor.
33mm Corrected Circle – Produces a generously flat focal plane with sharp, pin-point stars across sensors up to APS-C size.
Anti-Halation Aperture – Wide M48 clear opening optimises light throughput and curbs reflection artefacts during deep-sky sessions.
Dual Spacing Options – Achieves 55mm back focus with the supplied spacer attached, or 61mm working distance directly from the native M62 thread.
Threaded Security – High-precision threads secure the corrector firmly to the optical path, preventing flexure and slippage common to push-fit adaptors.
Two-Year Warranty – Supported by full manufacturer warranty coverage for total peace of mind in the field.