10×42 Binoculars — BAK4 Roof Prism, Fully Multi-Coated, IPX5, 18 mm Eye Relief

10×42 Binoculars — BAK4 Roof Prism, Fully Multi-Coated, IPX5, 18 mm Eye Relief

Black
$179.00 AUD
Skip to product information
10×42 Binoculars — BAK4 Roof Prism, Fully Multi-Coated, IPX5, 18 mm Eye Relief
1/5
  • 10×42 Binoculars — BAK4 Roof Prism, Fully Multi-Coated, IPX5, 18 mm Eye Relief
  • 10×42 Binoculars — BAK4 Roof Prism, Fully Multi-Coated, IPX5, 18 mm Eye Relief
  • 10×42 Binoculars — BAK4 Roof Prism, Fully Multi-Coated, IPX5, 18 mm Eye Relief
  • 10×42 Binoculars — BAK4 Roof Prism, Fully Multi-Coated, IPX5, 18 mm Eye Relief
  • 10×42 Binoculars — BAK4 Roof Prism, Fully Multi-Coated, IPX5, 18 mm Eye Relief
10×42 Binoculars — BAK4 Roof Prism, Fully Multi-Coated, IPX5, 18 mm Eye Relief

Binoculars 10×42 Binoculars

Full-size 10×42 binoculars with BAK4 glass and 18 mm eye relief, for birds, whales and ridgelines.

$179.00 AUD
Power
10×42
Prism
BAK4 roof
Water
IPX5
Full specification
Colour
  • Tracked delivery Australia-wide, A$19.95 on orders from A$100 (A$9.95 under): 1–3 business days to dispatch, then 10–20 business days on the way. Order a month before your trip. Shipping
  • 30-day returns. We pay the postage if it's faulty or not as described. Returns
  • Every figure on this page is the maker's own or our clearly labelled guide. No made-up lab ratings.

10×42 roof-prism binoculars with BAK4 glass, fully multi-coated lenses, 18 mm eye relief, 2 m close focus and IPX5 water resistance in a rubber-armoured metal body.

Bring the far side of the valley closer.

Best for
Birdwatching, whale watching, hiking viewpoints and sport.
Think twice if
10× magnifies shake too. If you want the steadiest, widest view, an 8× binocular is easier to hold.

  • BAK4 roof prisms

    The glass type behind brighter, sharper images than budget BK7.

  • Glasses-friendly

    18 mm eye relief with twist-up cups.

  • Rain-ready

    IPX5 and rubber-armoured.

The numbers

Taken from the maker's own listing and spec cards for this exact model; anything marked our guide is ours. Where the maker doesn't publish something, the line is left out rather than guessed.

Magnification10×
Objective lens42 mm
PrismRoof, BAK4 glass
CoatingsFully multi-coated (green)
Field of view303 ft at 1,000 yd (about 101 m at 1,000 m)
Exit pupil4.2 mm
Eye relief18 mm, twist-up eyecups (good with glasses)
Close focus2 m
Water resistanceIPX5 (splash and rain)
BodyMetal, rubber-armoured

Pairs well with

What people usually add to this.

  • Ultralight Camp Chair — 570 g, Aluminium Frame, Packs to a Water Bottle
    Ultralight Camp Chair

    A real chair for camp that weighs about as much as a water bottle.

  • Hiking Backpack 40 L — Water-Repellent Nylon, Padded Back, Hip Belt, Pole and Sleeping Bag Straps
    40 L Hiking Backpack

    A do-it-all 40 L pack for overnights, hut trips and travel.

  • Mosquito Head Net — Fine Mesh, Fits Over a Hat, Folds Into a Pocket
    Mosquito Head Net

    Mozzies, flies and midges stay on the outside.

  • Quick-Dry Cooling Towel — 30 × 80 cm Microfibre, Soak, Wring and Wear
    Quick-Dry Cooling Towel

    Wet it, wring it, wear it: instant cool on hot climbs.

Questions

8× or 10×?
8× gives a wider, brighter, steadier view and is easier for birds in trees and anything that moves. 10× brings distant things closer but shows every shake of your hands. If you're unsure, 8× is the easier pair to live with.
Can I use them with glasses on?
You need about 15 mm of eye relief or more to see the whole view with glasses on. Twist the eyecups down when you wear glasses, and up when you don't. The spec table lists the eye relief where Bosma publishes it.
What does BAK4 mean?
It's the type of glass in the prisms. BAK4 bends light more evenly than the cheaper BK7, which gives a brighter, sharper image out to the edges.
When will it arrive?
We dispatch in 1–3 business days, then it's 10–20 business days on the way to Australia. There's no warehouse or shopfront in between, which is why it takes longer and costs less. If you have a trip booked, order at least four weeks before you leave. You'll get a tracking number by email when the parcel is scanned. Full details on the Shipping page.
Will my order arrive in one parcel?
Gear from the same maker usually travels together. If your order has gear from more than one maker, it can arrive in two or three parcels, sometimes a few days apart. You'll get an email with a tracking number for every parcel, so you always know what's on the way.
Will I pay duty or GST on delivery?
No. Orders under A$1,000 clear into Australia without additional duty or GST, so there's nothing to pay when your parcel arrives.
What if it isn't right?
You have 30 days from delivery to return it unused and in its packaging. If it's faulty or doesn't match what we published, we pay the return postage and refund in full. See Returns.
  • Tracked delivery Australia-wideA$9.95 on orders under A$100, A$19.95 from A$100. No duty or GST to pay on delivery.
  • Every number publishedGrams of down and weight on every bag, the R-value wherever the maker publishes one, capacity and weight on every pot, and a note wherever the maker's figures are unclear.
  • 30-day returnsUnused and in its packaging. We pay the postage if anything is faulty or not as described.
  • Replies within 24 hoursEmail us Monday to Friday and a person answers, not a bot or a call centre.