About this product
Part Number: 20188
An optically-matched M48-fitting doublet field flattener for Sky-Watcher's Esprit 100 ED PRO triplet refractor.
The M48 fitting provides a large clear aperture to reduce halation and a precision thread ensures the triplet and doublet lens groups are precisely aligned on the optical axis perpendicular to the image.
When used with the field flattener the Esprit-100's imaging circle is 40 mm.
- When fitting a DSLR camera you need only a M48 Ring to suit your Canon, Nikon or Sony DSLR camera. No spacers are required.
- The spacing for dedicated CCD imaging cameras is 55 mm from mating surface (69.8 mm from centre of rear element).
- The rear thread is M48. When using T-threaded accessories you will need a FLO M48-T adapter.
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