Meade Telescope f/6.3 Focal Reducer/Field Flattener
The Meade 8-inch Equatorial Wedge will eliminate field-rotation effects when you're using your 8" LX200 telescope for astrophotography.
You can do astrophotography with the LX200 scopes in the standard altazimuth mode, but with longer exposure times, an effect called field rotation becomes evident. Stars at the edge of the field will appear as small concentric arcs or streaks on the film, rather than as star points. This effect, which does not relate to the accuracy of the telescope's computer or internal alignment, occurs on all altazimuth-mounted telescopes. It's simply a side effect of the altazimuth-type mount itself.
Preventing Field Rotation
To prevent field rotation, your 8 Inch LX200 can be polar-aligned with the wedge. The wedge allows you to align the telescope's axis of rotation with the Earth's rotational axis. And this eliminates the effects of field rotation and gets the star streaks out.
An alternative to using a wedge is employing the field de-rotater. The de-rotater allows you to stay in altazimuth mode and correct field rotation for longer-exposure astrophotography and CCD imaging.
Available for shipment to the USA and Canada only.
Dimensions & Specifications
Telescope Accessories Series
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