Tele Vue

Tele Vue Nagler 22mm Type 4

82 degrees of immersion at a low-to-medium power, in a 2-inch barrel. A big, spacewalk-wide view with the edge correction to match, for observers who want the whole sky to wrap around them.

90/ 100

Polaris Score

Optical quality · Immersion · Comfort · Value

See the breakdown ↓

What it's for

Low power · wide fieldHigh power · narrow field

A low-to-medium-power eyepiece built for immersion: a huge 82-degree field for wrapping whole clusters and nebulae around your eye. Wide and sharp, not a high-magnification planetary tool.

Apparent Field

82°

Barrel Size

Eye Relief

19mm

Focal Length

22mm

From$551

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The spacewalk

You don’t look at a field.
You look into the sky.

Every number on the spec sheet matters less than one feeling: how much sky wraps around your eye. Widen the apparent field and watch the black edge of the eyepiece slip away.

82° apparent field

At 82°, the edge slips into your peripheral vision, you stop looking at a field and start looking into the sky.

See this field in your own scope in the Simulator →

01What it's good at

What it's best at — and the trade-offs.

Best at

✓An immersive 82-degree field at a low-to-medium power, ideal for framing large deep-sky objects whole.

✓Pinpoint stars to the edge even at f/4 to f/5, the correction the Nagler line is built on.

✓Around 19 mm of eye relief with an adjustable eyeguard, comfortable for such a wide field.

Trade-offs

!Heavy and physically large; a full kilo of glass rebalances a light scope.

!A big exit pupil at low power wants dark skies to look its best.

!Premium price, and a 2-inch focuser is required.

02In your telescope

One eyepiece. A different job in every scope.

An eyepiece has no magnification of its own — the telescope decides. The same eyepiece becomes 22× and 3.7° of sky in a little refractor, or 92× and a tight frame in a long SCT. Here’s what it does across common scopes.

Small apo refractor

480 mm · f/5.5

Magnification

22×

True field

3.7°

Exit pupil

4.0 mm

An enormous 22x and 3.7 degrees in the little refractor, whole constellations of the Milky Way in one immersive sweep.

8-inch Dobsonian

1200 mm · f/6

Magnification

55×

True field

1.5°

Exit pupil

3.7 mm

55x and a 1.5-degree field in the 8-inch Dob, big clusters and nebulae floating in a dark, wraparound surround.

12-inch Dobsonian

1500 mm · f/5

Magnification

68×

True field

1.2°

Exit pupil

4.4 mm

68x in the big Dob with a 4.4 mm exit pupil, rich medium-low power deep sky at its most immersive.

8-inch SCT

2032 mm · f/10

Magnification

92×

True field

53′

Exit pupil

2.2 mm

Tames the long SCT to 92x and nearly a degree, a wide, immersive field out of an f/10.

Exit pupil is how wide the beam of light leaving the eyepiece is. Around 5–6 mm is bright and immersive under dark skies; push much past 6 mm and you waste light, and under light pollution a smaller exit pupil shows more contrast.

02In plain English

The numbers, in plain English.

82° apparent fieldThe whole point

Immersive

Wide enough that the black field edge slips into your peripheral vision and you feel inside the view.

Edge correctionHolds at f/4

Pinpoint

Stars stay tight to the field stop even in very fast scopes, the hard part of a wide field, solved.

~19 mm eye reliefAdjustable eyeguard

Comfortable

Relaxed to look into for such a wide field, with an eyecup you can set for glasses or bare-eyed viewing.

Over 500 g, 2" onlyRebalances the scope

Substantial

A big, heavy eyepiece that needs a solid 2-inch focuser and a counterweight tweak; the price of the field.

03What comes alive

The targets this eyepiece was born for.

Comes alive

The Double Cluster

Both clusters set in a vast, star-strewn field, the classic 82-degree wow view.

Comes alive

The Pleiades

The whole cluster wrapped in a dark, immersive field with room to spare.

Comes alive

Orion Nebula

The Sword region floating in space, nebula and surrounding star clouds in one enveloping view.

Excellent

Andromeda Galaxy

Bright and wide, with both companions and the surrounding star fields in a single frame.

Excellent

Veil Nebula

With an OIII filter, the tendrils sweep across the huge field in a way narrower eyepieces cannot hold.

Excellent

Milky Way star clouds

Sweeping the summer Milky Way becomes a slow drift through a river of pinpoint stars.

04Role in a collection

Where it sits in your eyepiece case.

A good eyepiece collection isn’t a pile of glass — it’s two or three focal lengths that hand off from wide to tight. This is the anchor at the bottom of the ladder: the one you find and frame with. You buy it once, and it stays your low-power eyepiece for life.

22 mmThis one

Low power · wide field

Find, frame and sweep. Your widest true field and the lowest useful magnification, the eyepiece you reach for first.

Veil Nebula · Pleiades · Milky Way star clouds

13 mm

Medium power · the workhorse

Where most deep-sky objects look their best, galaxies, globulars and planetary nebulae at a comfortable scale.

M13 · Ring Nebula · most galaxies

7 mm

High power · detail

Planets, the Moon at the terminator, tight double stars and the smallest planetary nebulae. Steady-air nights only.

Jupiter · Saturn · lunar craters

04Build around it

What it pairs with.

The telescope

What it goes into

Fast Dobsonian · f/4-f/6

Its natural home; low power, wide field and a dark surround

Rich-field refractor

The widest, most immersive whole-nebula and whole-cluster views

8-11" SCT

Tames a long focal length into a usable, immersive low power

Pair it

What extends its range

Tele Vue Paracorr coma corrector

At f/5 and faster, keeps the wide field pristine corner to corner

A medium and high-power eyepiece

Find and frame with the 22, then zoom in on what you've caught

Filter it

What transforms the view

2" OIII filter

The Veil and other supernova remnants explode into detail across the wide field

2" UHC filter

Broad nebula boost that keeps stars natural at low power

02The Polaris Score

How it scores, and why.

90/ 100

Tele Vue Nagler 22mm Type 4

As a wide-field immersion eyepiece it is close to flawless: a huge 82-degree field held pinpoint-sharp to the edge in fast scopes, the effect the whole line is famous for. It scores below the top only on price and its considerable weight.

Optical quality

Immersion

Comfort

Value

Polaris weighs how well the eyepiece does the job it was designed for — optics, immersion, comfort and value — never list price or brand.

03Who it's for

An honest fit check.

Buy it if you

✓You want the enveloping 82-degree Nagler experience at a power low enough to frame large deep-sky objects.

✓You own a fast Newtonian or Dob with a 2-inch focuser and want stars pinpoint to the very edge.

✓You observe visually under dark skies and chase big targets, clusters, nebulae and star fields.

✓You want a buy-once wide-field that will still impress you in a decade.

Look elsewhere if you

!You mainly chase planets and the Moon, which want a short focal length, not this.

!You have only a 1.25-inch focuser, since this is a 2-inch eyepiece.

!You need it to stay light; at over half a kilo it rebalances the scope.

!You observe mostly from light-polluted skies, where a large exit pupil washes out the background.

05The numbers

Full specifications.

Optical

Focal Length22mm

Apparent Field82°

Comfort & handling

Eye Relief19mm

Fit & build

Barrel Size2"

Editor’s Take

The Nagler name is shorthand for the moment the field edge disappears and you stop looking at a view and start looking into space. The 22 puts that feeling at a low enough power to swallow whole clusters and nebulae at once.