diagonals & adapters

Founder Optics 2" Dielectric Diagonal Mirror with 1.25" Adapter - DIA12-M

Founder Optics   ——   SKU: FOO-DIA2-M
$201.00 CAD
Add to cart
Product Info

If you're looking to upgrade your standard 1.25" diagonal with a 2" model, check out this 2" Mirror Diagonal from Founder Optics!

The compression ring twists to lock in 2" barreled accessories without marring and fiddling with small screws in the dark.  You will also receive a 2" to 1.25" compression ring adapter for your 1.25" barreled accessories.  The telescope side slides into 2" focusers.  In order to use this diagonal with a catadioptric telescope you would need an SCT adapter.

This Founder Optics 90-degree mirror diagonal has a dielectric coating with over 99.99% reflectivity for bright images.  


Welcome to the Loyalty Points Demo Store :-)

Sign up and receive 5000 pts to test out in our Store.

Earning and redeeming Reward Points

Earns you
Redeems to

Ways you can earn

  • Product Purchase
  • Refer a friend
  • Share on social media

Learn more about our program