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By PARISS

Verified

Excellent 2" star diagonal

 
5.0

PROS

  • Strong Construction
  • Accurate
  • Easy to Use

CONS

BEST USES

  • Astronomy

Comments:

I used the 2" star diagonal as a turning mirror on a custom refractor. It operated flawlessly, as I expected, from a William Optics product.


By Dan

About Me Avid Adventurer

Verified

Nice diagonal

 
4.0

PROS

  • Easy to Use

CONS

BEST USES

  • Astronomy

Comments:

I use this primarily with a Sky Watcher 100ED refractor and it makes a very nice pairing. I don't do a lot of visual astronomy (although I do use this diagonal to mount an imaging source camera), but when I do this diagonal is a definite upgrade over the Celestron star diagonal I used to have.


By Todd

About Me Casual/ Recreational

Verified

William Optics 2

 
4.0

PROS

  • Strong Construction
  • Lightweight
  • Easy to Use

CONS

BEST USES

  • Astronomy

Comments:

Great quality diagonal. Only gave it 4 stars instead of 5 because there is quartz model that suppose to be higher quality. Never tried one of the quartz models. The CF is nice to look at and helps in the weight. I am extremely satisfied with my purchase. I would definitely recommend this diagonal. Agena was great about shipping right away. Great site and customer service!!


By Michael

About Me Avid Adventurer

Verified

Great Star Diagonal

 
5.0

PROS

  • Lightweight
  • Easy to Use
  • Strong Construction

CONS

BEST USES

  • Astronomy

Comments:

I bought this diagonal to use in my Explore Scientific AR152 refractor after dropping and damaging the stock diagonal. It's a very nice looking and solidly built star diagonal that feels like it should last for many years. I didn't notice a performance improvement over the stock diagonal, but it does improve the overall look of the telescope. The carbon fiber with the WO logo is very impressive looking. Others have reported problems with eyepieces catching on the brass compression ring, but I havent had that problem with any of my eyepieces. The diagonal holds all of my heavy 2" eyepieces very securely.


By crsrs31

About Me Avid Adventurer

Verified

I love this diagonal!!!

 
5.0

PROS

  • Lightweight
  • Easy to Use
  • Strong Construction

CONS

BEST USES

  • Astronomy

Comments:

I have had other 2" diagonals, and this one is by far the best one yet! It's strong, and holds the weight of my heavy eyepieces without sagging. the coatings are exceptional in that the images viewed are much brighter than the others I've had. I also like the fact that the "Dielectric" coatings are much more durable, and can handle being carefully cleaned when need be.


By SteveG

About Me Avid Adventurer

Verified

Very High-Quality Diagonal

 
5.0

PROS

  • Well built
  • High Reflectivity
  • Great Baffling

CONS

BEST USES

Comments:

I purchased this William Optics diagonal after buying my 2nd WO refractor, so that the 2 would not have to share. This one, with its carbon fiber sides was matched with my Megrez 120, and it replaced another brand quartz diagonal. The two diagonals compare equally in reflectivity, but the WO diagonal has far better light baffling. I've had it for several months and can highly recommend this diagonal.


By MacDougal

About Me Casual/ Recreational

Verified

WO 2" Carbon Fiber Dielectric Diagonal

 
5.0

PROS

  • Lightweight
  • Easy to Use
  • Accurate
  • Strong Construction

CONS

BEST USES

  • Astronomy

Comments:

The diagonal is a great bang for the buck. Looks very nice and matches my carbon fiber OTA. The construction is excellent. Great price for a quality product. I would also like to add "Agena" is one of the best (maybe the best) online store I have dealt with. Excellent, Outstanding service and very prompt to answer any questions you might have.


By Phil

About Me Casual/ Recreational

Verified

Excellent Diagonal

 
5.0

PROS

  • Lightweight
  • Easy to Use
  • Strong Construction
  • Quality Lenses

CONS

BEST USES

  • Astronomy

Comments:

Having both the refractor and SCT nosepieces allows use in both my refractors, SCT and MCT--works very well in all and provides great flexibility. Only caveat with the interchangeable nosepieces is to make sure they are screwed in tightly otherwise a heavy EP can cause the diagonal to rotate. Very nice diagonal functionally and the aesthetics are first class.


By Shadow2097

About Me Casual/ Recreational

Verified

Top notch diagonal

 
5.0

PROS

  • Accurate
  • Strong Construction

CONS

  • Heavy

BEST USES

  • Astronomy

Comments:

Very sturdy and well built diagonal. It can handle the largest and heaviest eyepiece without any kind of bending, flexing, or distortions. It's fairly heavy, so if you're used to balancing a scope with a 1.25" diagonal, be prepared to find a new balance point. Otherwise, it's definitely worth the upgrade.


By skygeek

About Me Casual/ Recreational

Verified

Crystal clear images

 
5.0

PROS

  • Strong Construction

CONS

  • Heavy

BEST USES

  • Astronomy

Comments:

This is an excellent diagonal, It's so good that this is my second one that I had bought. I do a lot of astro imaging and the images are bright and clear. I highly recommend this product.


By JohnR

About Me Casual/ Recreational

Verified

High Quality,good price,[...]

 
5.0

PROS

  • Compact
  • Quality Lenses
  • Accurate
  • Strong Construction

CONS

BEST USES

  • Astronomy

Comments:

Goes perfect with my 127 ED APO TRIPLET.I guess in the near future I may try WO's newest diagonal.[...]


By Cosmo

Verified

(1 of 1 customer found this review helpful)

Excellent Diagonal

 
5.0

PROS

CONS

BEST USES

Comments:

excellent clarity and brightness -- beautiful styling and finish The tight compression ring problem seems to be common -- I experienced the same with a Meade 2" and other adaptors. It helps some to spread and reposition the ring with your fingers first.


By Jon

About Me Casual/ Recreational

Verified

(2 of 2 customers found this review helpful)

Beautiful piece of gear...but

 
3.0

PROS

  • Strong Construction

CONS

  • Difficult to Use

BEST USES

  • Astronomy

Comments:

Very nice quality and bright views but, on the one I received, I would have to jiggle an eyepiece to get it to drop past the brass compression ring and seat in the diagonal. The bottom edges of all my different eyepieces would hang up slightly on the compression ring no matter how loose the set screw was. It seems the ring was just not recessed enough. I may try another unit before switching brands.