Celestron 45 Degree Angle: Picture 1 thumbnail Celestron 45 Degree Angle: Picture 2 thumbnail
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About Celestron 45 Degree Angle

Celestron's 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.

Summary of Customer Reviews

Customers most agreed on the following attributes:
Lightweight (3)
Best Uses:
Astronomy (3),Bird watching (3)
Reviewer Profile:
Casual/ recreational (3)

Celestron 45 Degree Angle Reviews

Reviewed by 3 customers


Perfect for shallow angle viewing


from Boston MA  -  Casual/ Recreational

This product is easy to use, slide it into the scope's visual back, secure the set screws, slide the eyepiece into this and secure the set screws. It could benefit from compression rings instead of screw tip pressure to hold the eyepiece.


Good Quality Erect Diagonal


from Delaware  -  Casual/ Recreational

Well made, sharp optics.


Dont bend your neck


from oregon  -  Casual/ Recreational

I purchased these for use in building stereo microscopes It is intended for use on telescopes It appears to me to be a name branded generic item that is imported. It appears to me to be a sturdy, reasonable quality item suitable for telescopes or microscopes that use or will adapt to its eyepiece & tube size


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Questions about this item:

MICHAEL S  The Celestron 45 Degree Angle Erect Image Diagonal 1.25 fits into a 1.25inch diameter telescope eyepiece tube of the telescope focus adjustment tube and accepts 1.25 inch diameter eyepieces and accepts eyepieces of various focal length POWER (2x 5x 100x etc.) that are designed for 1.25 inch mountings. To use the 1.25 erector with a smaller 1.00 diameter lens a sleeve adapter is required to allow centering and clamping the smaller 1 inch dia. lens in the 1.25 inch hole. I do not understand what the term "LENS NUMBER" refers to.. perhaps MFR or Vendor part or stock number? a I understand eyepiece lenses a (focal length) or power 5x , 10x etc. and a lens holder diameter 1.00 , 1.25 inch etc. define a particular lens Since telescopes are sold in differing lengths the eyepiece focal length is the better way to order an eye piece that might be used in various telescopes.
Shopper  will this erect image diagonal work to invent the images on a Bushnell 76mm Reflector?
CHERYL ANN S  Sorry, don't know!
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