Lunt 50mm (Old Etalon) H-Alpha Double Stack Filter (LS50FHa) 5" Dob which guarantees a flat field

which guarantees a flat field across the entire imaging plane

The eye-guard can also rotate for Dioptrx users

There are four half-threaded holes tapped close to the edge of width

NexStar Plus includes many setup conveniences like customizable max slew speed

Lunt 50mm (Old Etalon) H-Alpha Double Stack Filter (LS50FHa) 5" Dob which guarantees a flat fieldThis uses the old etalon design and will sell until out of stock. New options available on the site. The Lunt LS50FHa Solar Filter is a 50 mm aperture (no central obstruction) integrally tuned etalon for use on Lunt ED Refractors. Lunt Solar will be introducing a larger selection of ED Telescopes that will meet your Solar needs for Daytime observing and meet the additional requirements of Nighttime observing. In this way you can use one scope for day