Science and Nature

Opticron Adventurer II WP 10×50 binoculars evaluation

Opticron’s roof prism binoculars are mountainous to divulge and lift sure involving views of the night sky, but alternatives may well perchance supply better cost for money.


  • Light weight
  • Water-proof
  • Fully multi-covered
  • Quality BAK4 glass
  • Good ergonomics


  • Diminished enviornment of watch
  • Lacking top class the truth is feel
  • Short strap on case

Opticron’s Adventurer II WP 10×50 is an intriguing preference for any astronomer who will deserve to bear a pair of roof prism binoculars, offering a mountainous mixture of quality optics and water resistant robustness at an cheap label. Their extremely efficient 10x magnification coupled with immense 50mm targets unearths fabulous element on the moon, and approach that many double stars also will likely be rupture up without complications. Colour rendition is surprisingly correct, and difference is gorgeous. 

Key Specs:

Purpose lens diameter: 50mm (49mm measured)

Magnification: 10x

Weight: 771g

Prism form/ prism glass form: BAK4 roof prism 

Apparent enviornment of watch: 5.5 deg

Exit pupils (mm): 5

End focal point distance: 3m

Pupillary distance max/ min: 57-73mm

Relative brightness: 25

Twilight element: 22.3 

Roof prism binoculars are in overall thought of second most attention-grabbing for astronomy, essentially on narrative of the within optical direction in all fairness of more convoluted than aged Porro prism binoculars. Each extra commerce of direction within approach that some of that treasured light is lost, and roof prism binoculars bear pretty of a popularity for poorer difference than Porros. 

These losses also will likely be compensated for in a preference of systems, and Opticron has prone every trick within the book here. First are those tall 50mm goal lenses, to gain as many photons as imaginable. Second is using BAK4 glass within the prisms – the gold unheard of enviornment subject in these instruments. Within the smash, every air/glass interface is multi-covered, reducing aberrations to a minimal.

The tip consequence is binoculars that raise crisp photos that are virtually free of distortion, on the least within the central enviornment of watch. For individuals who strive tough you’ll be capable to also detect some minor fringing on the facets, which is overall enough in most binoculars.

Or now not it is price noting that the Opticron product vary involves two pretty diversified traces named the Adventurer. Right here we’re taking a scrutinize on the Opticron Adventurer II WP 10×50, and now not the identical-sounding Opticron Adventurer T WP 10×50 (a Porro prism binocular). Compare and double-test to create sure you’ll be capable to even be attempting to search out the pair you prefer.

Opticron Adventurer II WP 10×50: Kind

  • Not easy rubberised coating 
  • Adjustable watch cups for spectacle wearers 
  • Water-proof and nitrogen-filled 

Opticron Adventurer II WP 10x50 binoculars review: image shows Opticron Adventurer II WP 10x50 binoculars

(Image credit score: Amazon)

The Opticron Adventurer II WP 10×50 binoculars apply the unheard of configuration for roof prism binoculars, with twin parallel tubes and a immense central focal point wheel. They’ve a tricky rubberised plan which is nice to the contact and offers correct plug resistance, but lack the highest class the truth is feel of some competitors. 

First impressions on deciding on them up is correct – they seem if something else too light for their energy, and steadiness properly within the palms. At objective correct 771g, they’re appreciably lighter than diversified quality 10x50s, each Porro and roof prism kinds (the same Nikon’s weigh 815g, and Celestron’s 900g)

Dioptre adjustment is hidden below the right hand tube, and proved rather firm – but this have to mute cease accidental readjustment. A tripod adapter socket sits on the attend of a screw-out plastic duvet on the front of the hinge.

A mountainous characteristic for astronomy binoculars is the waterproof create and nitrogen-filled internals (hence the WP designation). This effectively eliminates any bother of fogging and locations an cease to worries over dew.

Focal point is tranquil and staunch, helped by the immense ribbed focal point wheel. The rubber watch cups are prolonged by twisting outwards, with three sure stops. For individuals who aren’t carrying spectacles you’ll be capable to doubtlessly prefer these your whole approach out, or it turns into pretty of tricky to search out the sweet space to your eyes.

Opticron Adventurer II WP 10×50: Efficiency

  • Gargantuan difference 
  • Intellectual colours 
  • Factual element  

Opticron Adventurer II WP 10x50 binoculars review: images showsOpticron Adventurer II WP 10x50 binoculars

(Image credit score: Amazon)

The variation in magnification between a pair of 8x or 10x binoculars doesn’t sound like grand, but in helpful astronomy it will even be immense. When when put next with a pair of quality Zeiss 8x binoculars, these Alternatives delivered Jupiter as a transparent chubby disk, in preference to a immense dot, and when became to Saturn they showed a sure heed of a yellowish ellipse. The moon is a favourite object for binoculars, and the extra magnification the truth is helps discern element within the lunar terrain. The elevated energy also makes splitting double stars lots easier. 

We had been impressed by the coloration rendition of these binoculars. There is no mistaking the purple of Betelgeuse and the blue of Rigel, each in that favourite iciness constellation Orion. 

Turning to the fuzzy bits of the identical constellation, the nebula M43 is an intriguing sight and pretty popped out of the background. As with every binoculars, viewing with averted vision the truth is helps. 

One agonize with these binoculars, which is overall to roof prism kinds, is the pretty narrow enviornment of watch. At 5.5 levels here’s a corpulent degree lower than identical Porro prism kinds – that’s the the same of two corpulent moons. In helpful terms it approach you’ll be capable to also witness any two of the principle stars within the W of Cassiopeia, for example, but now not three. 

Although now not an astronomy agonize, shut focal point performance used to be finest average. Whereas you’ll be capable to also bear gotten invested in a correct pair of binos, you will are on the lookout for to divulge them in daylight. End focal point is the largest for staring at butterflies and diversified beasts, and the 3m closest focal point distance used to be pretty of disappointing. 

Have to mute you retract the Opticron Adventurer II WP 10×50?

For individuals who also will likely make certain to bear a pair of roof prism binoculars, sure, the Opticron Adventurer II WP 10x50s are a correct preference. They are light and sturdy, water resistant, and possess mountainous sights within the night sky. They are made with the particular quality glass and bear fully multi-covered optics, blended with the sunshine gathering energy of 50mm targets and extremely efficient 10x magnification. Nonetheless, for less money you will salvage Porro prism binoculars with identical or better performance.  

Opticron Adventurer II WP 10x50 binoculars review: image shows Opticron Adventurer II WP 10x50 binoculars rear

(Image credit score: Amazon)

If this product is now not for you

The Celestron 71348 Outland is a shut competitor to the Opticron Adventurer II WP, offering the quality to be expected from this depended on astronomy designate at a rather more affordable label. They are noticeably heavier although. 

Nikon’s Prostaff 10x50s are one other mountainous preference, from a designate synonymous with quality optics. Lighter than the Celestrons and finest pretty of heavier than the Opticrons. They are pretty dearer than either.

Venerable Porro prism binoculars are available at lower label and supply better overall performance. Potentialities are you’ll perchance make worse than attempting to search out a pair of the come-namesake of these, the Opticron Adventurer T WP 10×50. 

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