Filter Adapter from 1.25 inch to 2 inch
TSFI2-1 Adapter for 1.25 inch filters to 2 inch filter thread
Filter Adapter with M28.5 female and M48 male thread
Converts your 2" filter thread to a 1.25" filter thread to accept 1.25" filters when necessary.
Can be used with other optical accessories as well. (e.g. to insert/screw in a 1.25" Barlow lens into a 2" eyepiece)
It offers plenty of different kinds of usage:
-- Use 1.25 inch filters with your 2 inch eyepieces
-- You can use cheaper 1.25 inch filters for astro photography if you have a bright enough system
The adapter has to be screwed into your existing 2 inch filter thread.
-- M48 x 0,75mm male filter thread
-- M28 female filter thread
-- Mechanical length: 7.5mm
M28M48 in use with a Barlow lens on the left and with a Canon EOS to 2-inch nosepiece adapter on the right. TSFI2-1 is an alternative to Lacerta's M28M48.