Bosma Tiger-II Binoculars — 8×42 / 10×42 Roof Prism, BAK4, Fully Multi-Coated, Waterproof, 18 mm Eye Relief

Bosma Tiger-II Binoculars — 8×42 / 10×42 Roof Prism, BAK4, Fully Multi-Coated, Waterproof

10×42
$249.00 AUD
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Bosma Tiger-II Binoculars — 8×42 / 10×42 Roof Prism, BAK4, Fully Multi-Coated, Waterproof, 18 mm Eye Relief
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  • Bosma Tiger-II Binoculars — 8×42 / 10×42 Roof Prism, BAK4, Fully Multi-Coated, Waterproof, 18 mm Eye Relief
  • Bosma Tiger-II Binoculars — 8×42 / 10×42 Roof Prism, BAK4, Fully Multi-Coated, Waterproof, 18 mm Eye Relief
  • Bosma Tiger-II Binoculars — 8×42 / 10×42 Roof Prism, BAK4, Fully Multi-Coated, Waterproof, 18 mm Eye Relief
  • Bosma Tiger-II Binoculars — 8×42 / 10×42 Roof Prism, BAK4, Fully Multi-Coated, Waterproof, 18 mm Eye Relief
  • Bosma Tiger-II Binoculars — 8×42 / 10×42 Roof Prism, BAK4, Fully Multi-Coated, Waterproof, 18 mm Eye Relief
  • Bosma Tiger-II Binoculars — 8×42 / 10×42 Roof Prism, BAK4, Fully Multi-Coated, Waterproof, 18 mm Eye Relief
Bosma Tiger-II Binoculars — 8×42 / 10×42 Roof Prism, BAK4, Fully Multi-Coated, Waterproof

Bosma Tiger-II Binoculars 8×42 / 10×42 Roof Prism, BAK4, Fully Multi-Coated, Waterproof

Mid-range roof-prism glass with BAK4 prisms and a 3 m close focus.

$249.00 AUD
Magnification
8× or 10×
Objective
42 mm
Prism
BAK4 roof
Full specification
Magnification
  • Free shipping Australia-wide: 1–3 business days to dispatch, then 10–20 business days on the way. Worth the wait, but 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, and labelled as such.

The Tiger-II is Bosma's mid-range roof-prism binocular, with BAK4 prisms, fully multi-coated lenses, a 3 m close focus and a nitrogen-filled waterproof body (BSW-6: 30 minutes at 50 cm).

Choose 8×42 (107 m field of view, 18 mm eye relief, good with glasses) or 10×42 (105 m, 13.6 mm). About 650 g.

Bright glass for birds, boats and the back paddock.

Best for
Birding (thanks to the 3 m close focus), boating, hunting and travel.
Think twice if
At about 650 g it's a full-size pair. For a cheaper 10×42, look at the Bosma Eagle.

  • 8× or 10×

    8× is steadier and brighter, with a wider view. 10× brings distant things closer, but shows more hand shake.

  • 18 mm eye relief on the 8×42

    Enough to use with glasses on. The 10×42's 13.6 mm is tight for most glasses wearers.

  • Waterproof, nitrogen-filled

    Bosma rates it BSW-6: 30 minutes at 50 cm depth. The nitrogen fill stops it fogging inside.

Which one?

ModelField of viewExit pupilEye reliefPrice
8×42107 m at 1,000 m5.2 mm18 mmA$249
10×42105 m at 1,000 m4.2 mm13.6 mmA$249

Bosma's published figures.

The numbers

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

ModelBosma Tiger-II (also sold as Golden Tiger II)
Magnification8× or 10×
Objective lens42 mm
PrismRoof, BAK4 glass
CoatingsFully multi-coated
Field of view8×42: 107 m at 1,000 m (6.1°)
10×42: 105 m at 1,000 m (6.0°)
Exit pupil8×42: 5.2 mm
10×42: 4.2 mm
Eye relief8×42: 18 mm
10×42: 13.6 mm
Close focus3 m
WaterproofingNitrogen-filled; rated BSW-6 by Bosma (30 minutes at 50 cm depth)
WeightAbout 650 g (maker)
Size148 × 123 mm (10×42)
In the boxSoft case with shoulder strap, neck strap, eyepiece and objective caps, cleaning cloth, manual
BrandBosma

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.

More from this shelf

  • Free shipping Australia-wideThe price on the tag is the price you pay. No duty or GST on delivery under A$1,000.
  • Every number publishedFill weight, fill power and weight on every bag, 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.