•Article updated on April 30, 2023 at 8:56 AM GMT
Introduction:
For any amateur or professional stargazer, a great diagonal is an essential accessory that can elevate their observing experience. One of the top-performing diagonals available in the market today is the Celestron 93573 Dielectric Star Diagonal 2" with Twist Lock. We decided to put it to the test, and here is what we found.
Design and Features:
The Celestron 93573 Dielectric Star Diagonal is designed to offer the maximum reflectivity possible, providing better optics, and collecting the most light possible. It is a 2-inch diagonal that boasts of being compatible with both 2-inch and 1.25-inch eyepieces. The diagonal provides a perfect 90-degree viewing angle, making it comfortable to use for those who often use refractor and cass-grain type telescopes.
One of the most impressive features of this diagonal is its 58 layers of dielectric coatings, which cover the entire surface. The use of these coatings ensures the maximum possible light transmission and eliminates any chance of light being lost during reflection. It also significantly improves the sharpness and contrast of the image, thus ensuring a top-class viewing experience.
The Celestron 93573 dielectric star diagonal also comes with a twist-lock feature that firmly secures the eyepiece in place, ensuring that the eyepiece remains centered throughout observation. This feature aids in better optical alignment and improves the quality of the image observed.
Compatibility:
The Celestron 93573 dielectric star diagonal comes with a step-down adapter that ensures compatibility with both 2-inch and 1.25-inch accessories. This is particularly noteworthy because it eliminates the need to purchase other accessories or adapters for your telescope.
Ease of Use:
The Celestron 93573 dielectric star diagonal is straightforward to use. Twist-locking the eyepiece into place is an easy process, and once locked-in, the eyepiece remains firmly secured. The diagonal is constructed very well and is of high quality, making it a durable accessory that will last for many years.
Overall Performance:
We tested this diagonal using different telescopes and a range of eyepieces, and it performed superbly in all instances. The image quality provided by the Celestron 93573 dielectric star diagonal is astounding. The high degree of reflectivity and dielectric coatings grant excellent image clarity and contrast.
The diagonal eliminates the frustrating experience of light being lost during reflection, and the twist-lock feature ensures that the eyepiece remains centered throughout the observation for better optical alignment, improving overall image quality.
Customer Reviews:
The Celestron 93573 dielectric star diagonal has received overwhelmingly positive reviews on Amazon.com, with a 4.6 out of 5 stars rating and a staggering 161 reviews at the time of writing this article. Customers praised the diagonal for its exceptional quality and value for money. Customers mentioned that the diagonal enhances their observing experience and were impressed with the degree of light transmission and quality of the image noticed.
Pros:
- High reflectivity and 58 layers of dielectric coatings
- Twist-lock feature ensures better optical alignment
- Compatible with both 2-inch and 1.25-inch accessories
Cons:
- The twist-lock mechanism may need adjustment for eyepieces with larger housings.
Conclusion:
If you’re looking for an exceptional diagonal that can improve your observation experience, then the Celestron 93573 Dielectric Star Diagonal must be on your list of considerations. Its high level of reflectivity, dielectric coatings, and twist-lock feature make it a top-performing diagonal that can help produce excellent images, and it is compatible with different accessories. The Celestron 93573 dielectric star diagonal is a little on the expensive side, but the quality obtained far outweighs the price. Overall, this product is an excellent buy and is highly recommended.
Our team of expert, award-winning staff meticulously selects the products we feature, conducting thorough research and rigorous testing on our top picks. If you make a purchase through our links, we may earn a commission.
•70s 80s 90s Disco Party Backdrop Retro Disco Party Decorations Disco Fever Dancers Backdrop for Let's Glow Crazy Theme Party Neon Night Birthday Photography Photo Booth Background 72.8 x 43.3 Inch
•MUDIX [Auto Focus] Video Projector, Native 1080P with 5G WiFi 4K Support, Auto 4P Keystone Correction/Zoom, Portable Movie Projector for iOS Android Phone/TV Stick/Laptop/PPT Indoor Outdoor Use
•Fujifilm Instax Mini 9 Instant Camera Lime Green + Minimate Custom Case + Fuji Instax Film 20 Sheets Twin Pack
•Neewer 2-Pack 2.4GHz LED Softbox Lighting Kit with Color Filter — 20” × 28” Softbox, 3200–5600K 48W Dimmable LED Light Head, 2.4GHz Remote, Light Stand & Red/Yellow/Blue Filter for Photo Studio Video
•Prom 2023 Backdrop, Prom Decorations for Party 2023, Graduation Prom Party Decorations, Black Gold Prom Banner for Graduation Party Decorations, 72x43inch
•PhotoTrust 5 in1 Pocket Reflector-Super Portable Tiny Reflector 12"/30cm Collapsible Multi-Disc Photography Light Reflector Diffuser-Silver/Gold/Black/White/Translucent for Studio/Macro Photography
•Mini Projector 9000 Lux 210" Projector 1080P Supported Display with 52000 Hrs LED Movie Projector Compatible with Phone Computer Laptop USB HDMI VGA-Home Office Outdoor Entertainment
•C CRYSTAL LEMON Dummy Security Camera – Realistic Set of 2 Mini Fake Security Cameras – Durable and Reliable Dummy Outdoor Camera – Battery-Operated Fake Cameras with Red Light – Easy Installation
70s 80s 90s Disco Party Backdrop Retro Disco Party...
by Dallas Moreno • 4.30.2023
MUDIX [Auto Focus] Video Projector, Native 1080P w...
by Atticus Hancock • 4.30.2023
Fujifilm Instax Mini 9 Instant Camera Lime Green +...
by Amirah Faulkner • 4.30.2023
Neewer 2-Pack 2.4GHz LED Softbox Lighting Kit with...
by Henrik Maldonado • 4.30.2023
Prom 2023 Backdrop, Prom Decorations for Party 202...
by Lilian Curtis • 4.30.2023
PhotoTrust 5 in1 Pocket Reflector-Super Portable T...
by Titus Hoover • 4.30.2023
Mini Projector 9000 Lux 210" Projector 1080P Suppo...
by Lian Wang • 4.30.2023
C CRYSTAL LEMON Dummy Security Camera – Realistic ...
by Issac Lane • 4.30.2023