Pentax Papilio II 8.5x21 Binoculars

Pentax Papilio II 8.5x21 Binoculars

With a minimum focus distance of 50.8cm between the objective lenses and your subject, this unique binocular offers an exclusive tool to observe nature, almost acting as a high quality magnifying glass!

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Total Price £109.00
MPN Code 62002
EAN Code 027075288928
SKU 12979

Why Buy the Pentax Papilio II 8.5x21 Binoculars?

The Pentax Papilio binoculars hidden secret is their ability to close focus. With a minimum focus distance of 50.8cm between the objective lenses and your subject, this unique binocular offers an exclusive tool to observe nature, almost acting as a high quality magnifying glass! Things like flowers, butterflies, dragonflies, animal footprints and landscape features can be viewed with ease thanks to these close focusing binoculars. Suitable for use in museums and galleries too and with a centre focus wheel, you can bring your target into focus quickly and easily.

The compact and lightweight Papilio II 8.5x21 Binocular combines aspherical optical elements and BAK4 Porro prisms to deliver edge-to-edge sharpness with a 51° apparent angle of view and offer fully multi coated optics. The wide field of view and compact design makes tracking subjects easy, perfect for bird watching.

Who are the Pentax Papilio II Binoculars Aimed at?

Put simply, everyone! Whether you’re looking for a compact pair of binoculars for every day use or you need a ‘second pair’ to pull from your pocket when you spot that butterfly perched on a flower, the Pentax Papilio II will suit your needs. Supplied with a rain guard, carry case and next strap, you have everything you need to get out in the field and start using them. An exit pupil score of 2.5 means you should get plenty of light through the barrel, giving clarity to your subjects and with a generous eye relief, glasses wearers will suffer no reduction in field of view. Interpupillary and diopter adjustments means you can tweak the optic to your requirements.

Why buy the 8.5x21 rather than the 6.5x21?

The 8.5x21 offers a larger magnification, meaning you can focus on the subject slightly further away. If the binocular will primarily be used as an everyday, every situation optic, you should choose the 8.5x21 over the 6.5x21.

Features and Benefits of the Papilio II 8.5x21 

  • No other binoculars like them on the market
  • C.L.O.S.E. (Convergent Lens Optical System Engineering) allows minimum focusing distance of 1.6 feet. 
  • Ideally suited for viewing birds, insects, flowers, artwork / printed materials or any other object at close range
  • Revolutionary dual-axis, single body housing with synchronized eyepiece adjustment to assure correct optical alignment for comfortable viewing
  • High-quality BaK4 prisms for maximum illumination in low light
  • Fully multi-coated optics reduce glare and harmful UV rays while providing maximum light transmission and color quality
  • Fast and easy center focus design for handling ease
  • Tough rubber housing improves grip and shock resistance
  • Helicoid eyepiece rings for extra viewing comfort
  • Fully-multi-coated optics ensure maximum light transmission, resulting in high-quality viewing. Every surface of every element is fully coated, minimizing internal glare and flare and giving a bright clear view.


Optical Performance 

  • BAK4 Porro prisms
  • Aspherical optical elements offer edge-to-edge image sharpness
  • Fully multicoated optics
  • Angular field of view: 6°
  • Minimum focus of 20"/50.8cm 
  • Interpupillary adjustment
  • Diopter adjustment

Construction Details 

  • Single piece objectives' frame allows for a synchronized interpupillary adjustment 
  • Contoured body provides a comfortable grip
  • Center focus knob offers an easy focusing
  • Twist-up rubber eyecups
  • Integrated 1/4"-20 tripod socket


Pentax Papilio II 8.5x21 Product Specification Sheet












Find related accessories to the Pentax Papilio II 8.5x21 Binoculars here. The discount highlighted will be received if you add the items as part of a bundle. Keep an eye out for exclusive deals on photographic equipment and accessories here!
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Pentax Papilio II 8.5x21 Binoculars reviews verified by reevoo
Verified reviews of Pentax Papilio II 8.5x21 Binoculars

out of 10

21 reviews

Field of view
Value for money
Overall rating
Scores 9.5 out of 10 based on 21 reviews
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out of 10


Cambridgeshire GB
Great close focus - ideal for dragonflies
None - OK as they are
Confirmed purchase: 08 November 2021
Published on: 15 December 2021
out of 10


Sussex GB
Crisp, clear, bright image. Light weight so easy to take anywhere.
Confirmed purchase: 21 September 2021
Published on: 23 October 2021
out of 10


Edinburgh GB
I know of any other binoculars that do the job for entomology, botany and lazy mycology and lichenology. They bridge the gap between hand lens/loupe and convention binoculars. On a good day, they can even be made useful for the odd bit of birding.
The light weight is an added value.
Manufacture them so that the 'bits' don't start to come loose.
Confirmed purchase: 23 September 2021
Published on: 21 October 2021
out of 10


Maidenhead GB Natural history lover.
Light, easy to use and carry but above all the magic of really close focussing. Ideal for the insect world.
Reviewer left no comment
Confirmed purchase: 26 August 2021
Published on: 23 September 2021
out of 10


st Osyth GB Keen nature watcher
Being able to see the details of a whole new world in close up!
Confirmed purchase: 01 June 2021
Published on: 29 June 2021
out of 10


Surbiton GB
What can I say ...thoroughly enjoying sitting in garden looking closely at insects then zooming up to watch a bird in next door’s garden. Great fun, great value. Make an excellent present for anyone getting into wildlife and ecology.
Reviewer left no comment
Confirmed purchase: 04 May 2021
Published on: 18 May 2021

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