Lunt 50mm (Old Etalon) H-Alpha Double Stack Filter (LS50FHa) 5" Dob Screw the Celestron NexStar 4SE

Screw the Celestron NexStar 4SE T-Adapter onto the rear cell threads until secure

which guarantees a flat field across the entire imaging plane

The eye-guard can also rotate for Dioptrx users

Our popular NexStar SE and NexStar Evolution telescopes are great for astrophotography

Lunt 50mm (Old Etalon) H-Alpha Double Stack Filter (LS50FHa) 5" Dob Screw the Celestron NexStar 4SEThis 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