The PENTAX high-performance XO 2.5 eyepiece offers a focal length of 2.58mm and is perfect for planetary observations. It features JIS Class 4 weather proof construction for durability, PENTAX-original smc lens coating to improve light transmission, and low-dispersion glass elements to provide high-resolution images.
Compatible with the following: PF-65 and PF-65 ED II series spotting scopes, PF-80 series spotting scopes, PF-100 series spotting scopes