TeleVue 2X Powermate Image Amplifier for 2" Eyepieces, with 1.25" Eyepiece Adapter
TeleVue 2X Powermate Image Amplifier for 2" Eyepieces, with 1.25" Eyepiece Adapter $450 posted.
Mint condition - only got to use it once before I sold most of my gear.
If you need a very high quality 2x Barlow for 2" eyepieces, look no further than this TeleVue Powermate. While not technically a Barlow, this unique new 4-lens image amplifier performs the same functions, but at a higher level of optical correction.
The Powermate is a 4-element parfocal compact amplifying lens system that consists of a negative achromatic doublet (a Barlow) plus a positive "pupil-correcting" doublet. While it looks and functions like a Barlow, your eyepieces will operate with pupil locations where the eyepiece designer intended, avoiding vignetting and mismatch problems with wide field eyepieces. The Powermate optimally mates its power to your eyepieces. No additional "interface lens" is needed, since the Powermate already has it built-in.
