Accessory · MSRP $60
Astro-Tech 2X Telecentric Extender Barlow for 1.25" Eyepieces
Key specifications
| Accessory type | Barlow |
|---|
All specifications
| Interface | 1.25" barrel (filter-threaded); M42×0.75 T-thread under the eyepiece holder |
|---|---|
| Compatible with | Any 1.25" focuser or visual back; binoviewers as an OCA; cameras via the 42mm T-thread |
About
A four-element telecentric 2× extender: a negative doublet plus a positive pupil-correcting doublet, so magnification stays a true 2× regardless of eyepiece spacing and the exit pupil, apparent field and eye relief are left alone. CNC-machined anodised aluminium, with a filter-threaded 1.25" nosepiece that unscrews to expose a 42 mm T-thread for imaging.
Where to buy
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