Celestron Ultima 12.5mm

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Brand and Model:Celestron Ultima 12.5mm
Price ($USD):$79.50
Type:Plossl
Focal Length:12.5 mm
Barrel Size:1.25 in
Apparent FOV:51.0 degrees
Field Stop Dia.:0.0 mm
Eye Relief:5 mm
Elements:5
Weight (lbs):0.3
Description:

Vote Highlights Vote
Celestron Ultima 12.5mm
My local dealer Vancouver Telescope managed to find me one of these fine 12.5 discontinued Celestron eps. Very good contrast, clarity and sharp field with this ep with my various refractors. First light was with my 152 f/6.5 refractor at a semi-dark site on the bright fragment B of the most recent comet in the night sky Schwassmann-Wachmann 3 on the evening of May 13th/06. Impressive light transmission and contrast at 80 power on the fan shaped comet with a distinct pencil like nucleus and long faint tail on a night of a full Moon. Good performance under less than ideal conditions. Definite keeper and completes my set of Celestron Ultimas {30,18,12.5,7.5 and 5mm eps}.

Celestron should have kept this long proven good quality and popular series of eps in their product line IMHO. Are you listening Celestron!!!


Best regards. Stan Taylor Vancouver B.C.

Overall Rating: 10
Optics:9 Value:10
Weight: 10 (Trustworthy Vote)
Date:
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Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=505795

Celestron Ultima 12.5mm
Stunning eyepiece. Stars are crisp and bright across the entire fov, (except for last 5% depending on scope). I've used this in F8 and F6 refractors and an F5 reflector. Simply breathtaking in the two refractors and wonderful in the reflector. In doing a side-by-side with the 12mm UO HD ortho I found I preferred the view in the Ultima. Of course the fov was larger but I also found the image just a little sharper (more contrast) which made the view more engaging. If the view was brighter in the ortho, I didn't notice it. I'd call it even on brightness and advantage to the Ultima on contrast. Highly recommended.

Overall Rating: 9
Optics:9 Value:10
Weight: 5 (Veritable Vote)
Date:
By:
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=447252

Celestron Ultima 12.5mm
In addition to the 12.5mm, I have the 18 and 30mm Ultimas. All the Ultimas are great mid-price performance. There's no ghosting when viewing Jupiter with a SCT 9.25 at 189X. And the eye relief is just perfect: not too long as to worry about keeping head steady nor eyeball squishing.

Overall Rating: 9
Optics:9 Value:10
Weight: 5 (Veritable Vote)
Date:
By:
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=247029

Celestron Ultima 12.5mm
This is a pretty good eyepiece. I will probably be adding the 18mm and 30mm to my collection...along with the Ultima Barlow. I don't care nearly so much for the Ultima 5mm though. All in all...good values, especially if you can pick them up used.

Overall Rating: 8
Optics:8 Value:8
Weight: 5 (Veritable Vote)
Date:
By:
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=248105

Celestron Ultima 12.5mm
Great views on planets and the Moon when coupled with the Ultima 2X barlow in a 90mm F/11 achromat... I can see more details more easily than with a TV 13mm Plossl (a classic!) or a UO 12.5mm Ortho (an over-achiever!) No flare or ghost image can be seen when observing a full moon with a well-baffled optical system. The quality of workmanship is top-notch, so is the multi-coating! The low cost of this absolutely fine eyepiece makes it a necessary addition to every eyepiece collection.

Overall Rating: 10
Weight: 4 (Unreliable Vote)
Date:
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Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=42521

Celestron Ultima 12.5mm
If ever there was a universal eyepiece, this is it. I have performed a side-by-side comparisons with a UO 12.5mm Ortho. The images seen were equally breathtaking: sharp across the entire field, bright, great contrast, no false color. The Ultima has a slightly larger fov which gives it an edge over the ortho. A best buy. No eyepiece collection is complete without an Ultima 12.5.

Overall Rating: 10
Weight: 4 (Unreliable Vote)
Date:
By:
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=42507

Celestron Ultima 12.5mm
Well, Iv'e got 3 Ultimas: 12.5mm, 18mm and the 30mm. Built like a tank and the sharpness is about as good as things can get. Right at the very edge stars may exhibit some small degree of coma, a tiny bit. To me this takes nothing away from it. You won't notice it unles you're really looking for it. My only gripes? The rubberside guard is bulky and relatively loose fitting. I'd prefer the classic round style thats securely fastened but thats just me. The side guard design does have its advantages but I'd rather replace them and keep them as an option if I change tastes. Also, they just don't seem as bright as my cheap 25mm Taiwanese Celstron plossl that can be found for about 25 bucks. I guess thats the trade off of having a slightly sharper view from the Ultimas extra 1-2 glass elements (5-7 element) as opposed to the plossls 4 element design. Verdict: Yeah, get a trio of Ultimas, definitley. But don't ever dispense of at least a regular plossl or two. Now thats a set lacking nothing (Unless you need a UWA Meade or Spacewalk Nagler with their 84 to 82 degree views) BTW, I wasn't as blown away by those ultra wide angle views as I thought I would form the Meade UWA and Naglers.

Overall Rating: 9
Optics:9 Value:9
Weight: 3 (Unreliable Vote)
Date:
By:
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=153985

Celestron Ultima 12.5mm
This eypiece is a great "all around" eyepiece. I use it on a Meade ETX, it provides very nice images of the moon and the brighter planets at 100X. It has good eye relief, and exellent coatings. It is one of the very best eypiece deals around today. Highly reccomeded

Overall Rating: 9
Weight: 3 (Unreliable Vote)
Date:
By:
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=42520

Celestron Ultima 12.5mm
Sharp contrasty images. In a 10" f/4.5 telescope stars are nicely defined points to the edge. Works quite well with Ultima Barlow. Seems well made and priced right.

Overall Rating: 9
Weight: 3 (Unreliable Vote)
Date:
By:
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=42505

Celestron Ultima 12.5mm
Sharp eyepiece out to edge of field. The coatings seem to be excellent. Eye relief is tight but is par for the course for this design in this focal length. My only gripe is that some of the black paint on the inside of the barrel has flaked off and adhered to the inner surfaces of the lenses. I had to get the ep cleaned which fixed the flakes but introduced more dust on the inside of the ep. Try before you buy.

Overall Rating: 8
Weight: 2 (Unreliable Vote)
Date:
By:
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=42509

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