The legendary Lumicon 2" OIII narrow band-pass filter isolates just the two doubly ionized oxygen lines (496 and 501nm lines) emitted by diffuse, planetary and faint nebulae. Thus, these faint objects become much more visible against the...

Rotating Polarizer Filter, 1.25"

Single Polarizer Filter, 1.25"

The Spare Dovetail Base for Refractor Laser Pointers allow you to use any Lumicon Laser Pointer Bracket on another refracting telescope. Comes with a 1.75" radius-cut bottom to fit snuggly on most refractors, and is mounted with...

The LP1020 Step Ring has 49mm exterior/male threads and 48mm interior/female threads, both with thread-pitch of 0.75mm.

The LP1030 Step Ring has 52mm exterior/male threads and 58mm interior/female threads, both with thread-pitch of 0.75mm.

The LP1040 Step Ring has 55mm exterior/male threads and 58mm interior/female threads, both with thread-pitch of 0.75mm.

The LP1050 Step Ring has 62mm exterior/male threads and 58mm interior/female threads, both with thread-pitch of 0.75mm.

The LP1060 Step Ring has 67mm exterior/male threads and 62mm interior/female threads, both with thread-pitch of 0.75mm.

The LP1070 Step Ring has 67mm exterior/male threads and 77mm interior/female threads, both with thread-pitch of 0.75mm.

The LP1080 Step Ring has 72mm exterior/male threads and 77mm interior/female threads, both with thread-pitch of 0.75mm.

The LP1090 Step Ring has 77mm exterior/male threads and 72mm interior/female threads, both with thread-pitch of 0.75mm.

The LP1100 Step Ring has 82mm exterior/male threads and 77mm interior/female threads, both with thread-pitch of 0.75mm.