Erecting Prisms
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Vixen - 1.25" Erect Image Adapter
Vixen's Erect Image Adapter is designed to fit a 1.25” focuser. This straight through adapter will re-invert and flip the image so it will appear fully corrected. You will see images with the right side up and read right correct. This Image Adapter is a must have for those terrestrial viewers. Usable on both reflectors and refractors. Coated Optics
... Learn MoreModel#: 3847
$149.00 -
TeleVue - 90° Enhanced 2" Star Diagonal (Satin)
This is the same 2-inch Star Diagonal that comes with the Tele-Vue 85 and the Pronto. Exquisitely crafted to fold light exactly 90 degrees. The mirror blank is polished to 1/10th the wavelength of light and vacuum coated with enhanced aluminum 96 percent reflectivity. Then it's overcoated to protect the delicate mirrored surface.
... Learn MoreFREE SHIPPINGModel#: DSC-8001(48 States)
$250.00 -
TeleVue - 45 Degree Prism
45° Prism for refractors gives normal image orientation. Terrestrial onlyWhile star diagonals correct a refractor's inverted image, they don't correct the left-right orientation ... Learn More
Model#: AMI-0011
$80.00 -
Meade - #933 45 degree Hybrid Erecting Prism
All ETX telescopes include an internal, flat mirror to reflect light to the telescope's 90-degree astronomical observing position; in this position the telescope's image is right side up, but reversed ... Learn More
Model#: 07220
$49.99 -
Meade - #932 45 Degree Erecting Prism 1.25 "
All ETX telescopes include an internal, flat mirror to reflect light to the telescope's 90-degree astronomical observing position; in this position the telescope's image is right side up, but reversed ... Learn More
Model#: 07210
$49.99 -
Celestron - Diagonal, Erect Image - 45 degree - NexStar 4
Threads onto the back of the NexStar 4SE & GT. This design allows you to look into the telescope at a 45° angle, at images that are oriented properly, meaning the image is upright and correct from left to right.
... Learn MoreModel#: 94116
Regular Price: $39.95
Special Price: $28.95
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Celestron - 45 Degree Diagonal, Erect Image - 1.25"
Celestron's 1-1/4" Erect Image Diagonals are an Amici prism design. This design allows you to look into the telescope at a 45° angle, at images that are oriented properly, meaning the image is upright and correct from left to right.
... Learn MoreModel#: 94112-A
$49.95




















