1. Celestron 2-Inch XLT Diagonal Mirror
Ranked 1st in our list of recommended diagonals and sells for $161.28 (as of 18/12/2021 06:25 PST details ) , more than 87% of the Celestron 93527 reviews are positive. With features such as 2 sct mirror diagonal with high performance xlt coatings and 1 10th wave mirror is tested with an interferometer to ensure quality, it is indeed our top pick among diagonals.
2. Astromania 2" 45-degree High-quality Erecting Prism Diagonal for Telescope
In the 2nd place of our top diagonals list you'll find the Astromania SKU_AM_DP2D45 which garners positive reviews from more than 67% of customers who bought diagonals. Priced at $187.99 (as of 22/08/2017 08:11 PDT details ) , it is designed for the savvy consumer who don’t mind paying a bit more for quality and best in class features.
3. Astromania 1.25" 90-degree Diagonal Mirror
Number 3 on the best diagonals list is resereved for venerable Astromania SKU_AM_DM1D90 that has featuers like, 1.25 90 degree mirror star diagonal for any telescope with 1.25 connector not suitable for newtonians . and more comfortable viewing orientation as you observe from above, filter thread for any 1.25 filter. accepts standard 1.25 eyepieces.. With a positive sentiment of 67% for the SKU_AM_DM1D90 from Astromania, it is a solid purchase that will keep you happy and it can be found online for $21.99 (as of 22/08/2017 08:10 PDT details ) .
4. Orion 1.25 Inch Twist-Tight Dielectric Mirror Star Diagonal
At $107.99 (as of 29/03/2023 08:23 PDT details ) , Orion's 40901 is our number 4, which gets 100% approval rate from customers who actually bought it.
5. Orion 8879 1.25-Inch Enhanced Mirror Star Telescope Diagonal
A good, solid choice come up at number 5 of diagonals reviewed by us. You can find this Orion 8879 for $76.68 (as of 15/02/2020 15:18 PST details ) , and be sure that it will do the work, at least according to more than 80% of people who used it and enjoyed features such as the precision flat mirror in this 90 degrees diagonal is meticulously polished to yield excellent performance and anodized aluminum housings are internally blackened for high contrast views free of glare.
6. Orion 20-Inch Twist-Tight Dielectric Mirror Star Diagonal
If none of the diagonals listed above suits you, then perhaps the Orion 40902 at the 6th place is the right one for you. Costing $161.99 (as of 29/03/2023 08:24 PDT details ) , positive reviews hover around 100%.
7. Astromania 2" 90-Degree Mirror Diagonal with 93% reflectivity across visible spectrum
Last but not least in the top diagonals, we have the good old Astromania SKU_AM_DM29093A which gets great marks by 100% of the reviews posted. It can be bought for $65.99 (as of 22/08/2017 08:10 PDT details ) .
