About this product
Part Number: 20190
An optically-matched M48-fitting doublet field flattener for Sky-Watcher's Esprit 150 ED PRO triplet refractor.
The M48 fitting provides a large clear aperture to reduce halation. A precision thread ensures the triplet and doublet lens groups are precisely aligned on the optical axis perpendicular to the image.
The Esprit-150 ED PRO's imaging circle is 44mm when used with the field flattener.
- When fitting a DSLR camera, you need only an M48 Ring to suit your Canon, Nikon or Sony DSLR camera. You don't need any extra spacers.
- The spacing for dedicated CCD imaging cameras is 98mm from the mating surface.
- The rear thread is M48. When using T-threaded accessories, you will need an Astro Essentials M48-T adapter.
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