These four Nagler Type-7 eyepieces are based on Tele Vue’s much-loved limited-edition Apollo 11 eyepiece created for the 50th anniversary of the Moon landings.
Indeed, Tele Vue’s founder Al Nagler designed the optical system for the Apollo landing simulator.
They aim to provide full-field sharpness across an expansive 82° field of view.
With the promise of comfortable eye relief for spectacle wearers and parfocality across the series, we were excited to try them on some seasonal targets.
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Unboxing and setting up
We tested all four on two scopes: a William Optics 70mm triplet refractor and an Orion 10-inch Dobsonian.
Starting with the refractor, we spent a clear, moonless night observing several open clusters in Auriga.
We immediately noticed that each increase in magnification more than doubled the number of resolved stars.
Later, the Double Cluster in Perseus looked gorgeous at all magnifications.
Although we had to slightly adjust the focus between eyepieces, the change required was minor and we enjoyed switching between the different options with minimal fuss.
The amount of detail visible on the Moon as we worked through each eyepiece was also impressive and we couldn’t resist taking a few photos.
Equally impressive were the views of Saturn: despite the rings being near edge-on, they were clearly visible with all eyepieces on both telescopes, as were the planet’s brighter moons.
Going deeper
Moving to our 10-inch Dobsonian, we started with the 19mm eyepiece and Orion’s Sword, which just fitted across the field of view if we tilted our head to see the edges.
The ‘wings’ of the Orion Nebula, M42, extended across the whole field of view and the Trapezium at the centre was well resolved.
With averted vision, it was also possible to see De Mairan’s Nebula, M43. The Ring Nebula, M57, was an impressive sight at all magnifications, as was the globular cluster M13.
Solar testing the Tele Vue Nagler Type-7
On a clear day, we attached a Thousand Oaks glass solar filter to our 70mm refractor and tried each eyepiece for observing the Sun.
Despite low altitude and patchy cloud, the visual detail in the sunspots was spectacular, especially the light bridge across the large active region AR14274.
We had to use a portable altaz mount for this and found the weight of each eyepiece caused some sag in the mount gears, while we also noted some movement in the focusing tube.
The 19mm and 14mm were great all-rounders, giving pleasing views of every target through both scopes.
The 9mm was fantastic on the Moon and gave crisp, clear views of lunar features, while also allowing us to see the central bright equatorial belt on Saturn and even observe a Ganymede shadow transit on Jupiter.
It was also great for some deep-sky objects, with fantastic detail on M13 and M57. For larger deep-sky objects, this magnification proved a little too much for the 10-inch Dobsonian.
Pushing the limits
The 5.5mm eyepiece gave the highest magnification and did a fantastic job on the Moon and Sun.
Planets were a little more challenging, because the 218x magnification on our 10-inch Dobsonian requires rare excellent sky conditions.
We successfully observed Saturn one night, but it was difficult to achieve good focus on a low-altitude Jupiter.
Many deep-sky objects were so big at this magnification that it was difficult to utilise averted vision, as there was nowhere to avert our vision to!
The deep-sky view with the 5.5mm eyepiece is dim, so a dark, transparent sky and dark adaptation are crucial for the best experience.
This eyepiece would be great for observing small planetary nebulae or double stars.
The barrel of each eyepiece is threaded to take filters, which would aid with galaxy and nebula viewing, while a tracking mount is also useful at this magnification.
At upwards of £600, these eyepieces have a high-end price tag, but each one exudes elite quality and is made to cherish.
Any visual observer would enjoy them as an investment piece – just make sure your focusing tube and telescope mount can handle the weight.
Amazing optics – like being in lunar orbit
The optics are excellent across all four eyepieces. The coatings ensure no unwanted glare, even when viewing the Moon.
For deep-sky objects, the resolving power is impressive at each magnification and even the faintest stars are pin-sharp, with just a tiny bit of aberration visible at the far edges of the field of view.
Star colours show up nicely, especially through our 10-inch Dobsonian.
The colour-contrasting double star Albireo was beautiful at all magnifications on both telescopes.
For the Moon, Sun and planets, the clarity was superb, with Saturn’s brightest moons visible even with the 19mm eyepiece on the 70mm refractor.
Moving through the magnifications feels like being in orbit, with each eyepiece bringing you closer to the object.
When observing the Moon, there was a tiny bit of colour fringing when the limb was at the very edge of the field of view, but this didn’t negatively impact the viewing experience.
Tele Vue Nagler Type-7 series eyepieces best features
(Almost) parfocality
We needed to turn the focuser about 1/16th of a turn to focus when switching between the 19mm eyepiece and the others. A tiny focus adjustment was needed when switching between the 14mm, 9mm and 5.5mm eyepieces, but this difference was more apparent when observing the planets.
Build quality
As you would expect from a Tele Vue product, the build quality is excellent. Each component is well made and sturdy, and they all look and feel high-end. The screw threads on the inside of the barrel are well engineered, making it easy to screw a filter in place.
Adjustable eye relief
The adjustable eye relief allows you to tailor the eyepiece to your own eyes and works well for spectacle wearers. The relief is lockable by tightening the locking ring. Hold the eyepiece at the top when adjusting the ring or you risk unscrewing other components by mistake.
Eyepiece cuff
If you’re not a spectacle wearer, the rubber eyepiece cuff helps to shield stray light from your observing eye. These fold down, which makes it easier to attach a Tele Vue FoneMate or other universal adaptor for a smartphone (to do some afocal photography). There is no T-ring threading for eyepiece-projection photography.
82º field of view
The 82° field of view gives a truly unique viewing experience. Tele Vue describes it as the ‘space-walk effect’ and that’s exactly how it feels – as you move your head, you can see more of the starfield or lunar landscape around the edges of the field of view.
Key specs
- Price: £631 per eyepiece
- Focal lengths: 5.5mm, 9mm, 14mm, 19mm
- Apparent field of view: 82° (all)
- Eye relief: 19mm (all)
- Optical elements: 7
- Barrel size: 1.25-inch and 2-inch
- Extras: Dust caps
- Weight: 587g, 547g, 556g, 581g
- Supplier: First Light Optics
- www.firstlightoptics.com
This review appeared in the February 2026 issue of BBC Sky at Night Magazine
