The Lumicon 1.25in Threadin Extension Tube with 1in Eye Piece Push Back threads into 1.25" eyepieces and is for small focus extension. Provides extra reach of 0 to 1".
The Lumicon 1.25in Dropin Extension Tube with 1in Eye Piece Push Back drops into 1.25" eyepiece holders and accepts 1.25" eyepieces & accessories. Provides a minimum extension of 1"; that is, it will ?push back" the eyepiece...
