Vixen NPL Eyepieces

Vixen NPL Eyepieces

  (11 Reviews)
✓ 2 year warranty


1x in stock shipped 1-2 working days

About this product

Model:  Vixen_NPL-4
Part Number:  39204

The Vixen NPL series are classic 2-group 4-element Plossl eyepieces that offer higher performance than the majority of eyepieces supplied with telescopes.  


  • Fully multi-coated optics.
  • 20, 25, 30 and 40 mm eyepieces feature twist-up eyecups. 
  • Threaded nosepiece accepts astronomy filters
  • 'Safety undercut' milled into the nosepiece to prevent the eyepiece falling out of the focuser.

Note to spectacle wearers: Plossl eyepieces with 15mm and longer focal lengths are good choices for spectacle wearers but for shorter focal lengths the Celestron XCel LX series have greater eye-relief so are better suited.

Eyepiece Field of View Simulator


Description Size Apparent FOV Eyerelief
NPL 4mm 1.25" 50° 2.3mm
NPL 6mm 1.25" 50° 3mm
NPL 8mm 1.25" 50° 4.5mm
NPL 10mm 1.25" 50° 6.5mm
NPL 15mm 1.25" 50° 11mm
NPL 20mm 1.25" 50° 15mm
NPL 25mm 1.25" 50° 19.5mm
NPL 30mm 1.25" 50° 24mm
NPL 40mm 1.25" 40° 36mm

Customer reviews

Average Rating (11 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Good views
Thursday, 12 November 2020  | 

Well made and far better than basic one that came with telescope. Eye relief tight but manageable. Good on moon and planets.

Rating (max 5):  
vixen eyepiece
Sunday, 4 October 2020  | 

Not an expert on eyepieces but this is so much better than the stock eyepiece that comes with Skywatcher telescopes. No hesitation in recommending. Great service from FLO.

Rating (max 5):  
30mm npl
Tuesday, 5 May 2020  | 

Definite upgrade from usual 32mm brands, sharp and contrasty over full fov in both f4.9 Star Travel 102 and f10 Celestron 8se, twist up eyecup very good for long eye relief.

Rating (max 5):  
In Mak 127 very impressed.
Monday, 4 September 2017  | 

Orion Nebula and trapezium were very well presented by the 30mm version of this EP. Nice and sharp and good contrast despite the sky beginning to show signs of dawn.
It was purchased to give a wide view whilst aligning but it was so good it stayed put for most of the session.
Be interesting to see how it fares with my Newt at f4.7 ???

Rating (max 5):  
Tuesday, 31 May 2016  | 

got this as an upgrade to the stock skywatcher sharp clear optics with massive eye relief,brings out much more detail than the stock e/ps at a very reasonable price..good for spec wearers even though i remove mine to view

Rating (max 5):  
Sunday, 26 April 2015  | 

Cant fault this 25 mm ep for the money. First time out i was allready seeing far more than my stock ep,s. Infact i didnt even get them out. I used this 25 and a 2x barlow. So much better

Rating (max 5):  
Amazing quality for a low price
Wednesday, 11 June 2014  | 

I bought the 8mm one to get better views of planets, the difference i noticed right away was amazing compared to the 10mm supplied with my skyliner 200p. ring separation on Saturn was very crisp and Jupiter showed in great color and very easy to see the color banding of it. I will defiantly be ordering more of the Vixen NPL range after seeing first hand how good they are

Rating (max 5):  
Love it
Thursday, 26 December 2013  | 

Had my Skywatcher 127 for a year. I quickly upgraded from the lenses that came with it. I bought the 40mm first followed by a 9mm Celestron lense. To be honest my light polluted skies offer little chance to get a clear view with the 9mm so I use the 40mm all the time. Its wide angle makes it really easy to find your target and I wear glasses and find the eye relief fab.

A couple of weeks ago, I decided to treat myself to a new lense. I thought that the 15mm version would be a good middle of the road choice. I certainly wasn't disapointed. Jupiter's rings looked really clear and I can't wait for another clear night to look at my other favourites.

As far as First Light Optics are concerned, I have nothing but praise. They have always been helpful and very quick to dispatch items.

Rating (max 5):  
Sunday, 31 March 2013  | 

A wonderful addition for any budding astronomer, these eyepieces as mentioned before offer a much better experience than those supplied with a beginner telescope. My first purchase was the 8mm lens, and this offered previously unparalleled images of jupiter and it's equatorial belts. A definite purchase for a great price and as for FLO's delivery, cannot fault them. Very speedy.

Rating (max 5):  
6mm - fantastic
Thursday, 10 January 2013  | 

beautiful sharp contrasty views of Jupiter using my Mak 127 along with this 6mm ep. I also put a barlow in and the size of jupiter was impressive with 3 moons in the F.O.V.

This was my first piece bought to complement the current 10&25 supplied with my scope and the quality is far superior.

I find the 6mm is great for using with a webcam as they result in a similar sized image image so I centre it with the eyepiece and then move over to the webcam to save faffing around trying to find it using the webcam. Works a treat, relatively inexpensive upgrades that I cant recommend enough, I have just ordered a 30mm and no doubt will build up a collection slowly.

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