OPT 90 Erect Image Diagonal - 1.25"

OPT 90 Erect Image Diagonal - 1.25"
$29.95
Item # OS-D125EI90
OR
  • The OPT 1.25" Erect Image Diagonal is a great accessory if you want to use your refractor or catadioptric reflector for terrestrial viewing.
  • Image Erect diagonals allows you to see images just as you would with your unaided eye...with images upright and left-to-right correct.
  • This OPT 90 Erect-Image Diagonal accepts 1.25" eyepieces and fits into focusers (either 1.25" in diameter or a 2" focuser with a 2"-to-1.25" adapter) that accept 1.25" barrels.
  • Erect Image Diagonals come in both 45 and 90 angles. This one tilts the eyepiece at a 90 angle, which is nice if your telescope is lower than you are (you can look straight down into the eyepiece).
Description

Details

OPT 1.25" 90 degree Erect Image Diagonal

Tired of getting on your knees to use your refractor of catadioptric-style telescope? Then stop breaking your back or craning your neck... OPT is here to help!

The OPT 1.25" 90 degree Erect Image Diagonal accepts all 1.25" eyepieces and fits into focusers (either 1.25" in diameter or a 2" focuser with a 2"-to-1.25" adapter) that accept 1.25" barrels. It automatically places whatever eyepiece that's put into it at a 90º angle for more comfortable viewing! And what's more... The image remains correct. The view stays exactly the same as if you were looking at it unaided - right stays to the right and left stays to the left. No reversal of image!

Here at Oceanside Photo and Telescope, we believe in passing on great savings to our customers. The OPT 1.25" 90 degree Erect Image Diagonals are created specially for us by a name brand manufacturer and then marketed under our own private label so we can offer them to you at a significantly lower cost. It's a great way to replace to replace older or worn out diagonals - or just to try something new!

OPT Product Number: OS-D125EI90
Additional Information

Additional Information

SKU OS-D125EI90
Diagonal Type 90º Erect Image
Diagonal Size 1.25"
Manufacturer OPT
Warranty 90 Day - Covered by OPT
Reviews

Customer Reviews 2 item(s)

Great for star hopping
While most correct-image diagonals are used for daytime terrestrial viewing, I wanted one to facilitate star hopping when using a typical star atlas. I have used this diagonal with 80mm and 102mm refractors that are also equipped with a RACI finder. This diagonal makes star hopping a breeze. Views are crisp and bright with no more chromatic aberration than a typical mirror diagonal. I would have given the diagonal a 5 star rating, but I'm waiting to see how durable it is (the housing is plastic rather than metal).
1= Houston, We Have a Problem & 5= It's Out of This World
Review by chemist / (Posted on 5/5/2014)
Using the 90º diagonal.
I've been using the OPT 90º Erect Image Diagonal it looks fine and works great this is a very good product.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Aldo S. Kleiman / (Posted on 4/20/2011)
Included Items

Included Items

  • OPT 1.25" 90 degree Erect Image Diagonal
  • Dust Caps
Questions & Answers

Product Questions

Does it have a compression ring or a screw for eyepiece retention?
0
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