Pentax UP 8-16x21 Zoom: Variable Power Aspheric Compact Porro Binoculars – BAK4 Central focus
Pentax UP 8-16x21 Zoom: Variable Power Aspheric Compact
Porro Binoculars – BAK4 Central focus
The Pentax UP 8-16x21 Zoom revolutionizes portable optics
with smooth 8-16x variable magnification – scan wide scenes at 8x,
then zoom to 16x for intricate details without moving! BAK4 Porro reverse
prisms and full multi-layer coated aspheric lenses deliver
edge-to-edge sharpness, high contrast, and brightness (relative 6.89, twilight
factor 13-18.3). Compact at 310 g and 111x111x55 mm, the
rubber-armored body resists splashes and drops, with central focusing, +/-4D
diopter, 56-73 mm IPD, and 14 mm eye relief for glasses
wearers. 3-5° real FOV (52-87 m at 1000 m) and 3 m close focus make
it versatile for hiking, events, or nature. Splash-proof and shock-resistant –
the ultimate zoom-in-pocket for adventurers needing flexibility!
Why Choose Pentax UP 8-16x21 Zoom?
·
Versatile Zoom: 8x wide view to 16x detail – one binocular
for scouting/precision
·
Proven Brightness: BAK4 + full multi-coating punches above small
21 mm lenses
·
Pocket Rocket: 310 g ultra-compact – fits pockets/ bags,
survives travel abuse
·
Uniform Sharpness: Aspheric lenses eliminate distortion across
entire field
·
User-Friendly: Central focus/ diopter fast-adjusts,
twist-ups for glasses, wide IPD
·
Tough Field Ready: Splash/ shock-proof – handles light rain,
drops from waist height
·
Rapid EU Shipping: Direct from Split, Croatia – Europe in days!
Order Pentax UP 8-16x21 Zoom today for
unbeatable zoom portability!
Technical
Specifications Table Pentax UP 8-16x21 Zoom
|
Specification |
Value |
|
Magnification |
8-16x (Variable) |
|
Objective Lens Diameter |
21 mm |
|
Eye Relief |
14 mm |
|
Exit Pupil |
1.3-2.6 mm |
|
Real Angular Field of View |
3-5° (52-87 m @ 1000 m) |
|
Apparent Field of View |
40-48° |
|
Minimum Focus Distance |
3 m |
|
Interpupillary Distance |
56-73 mm |
|
Diopter Adjustment |
+/-4 D |
|
Prism Type |
Porro Reverse (BAK4) |
|
Lens Coating |
Full Multi-Layer |
|
Relative Brightness |
6.89 |
|
Twilight Factor |
13-18.3 |
|
Splashproof |
Yes |
|
Shockproof |
Yes |
|
Weight |
310 g |
|
Dimensions |
111 x 111 x 55 mm |
Frequently Asked Questions
·
How smooth is the zoom mechanism on the Pentax
UP 8-16x21 Zoom?
It glides precisely from 8x wide-angle to 16x detail without image jump,
maintaining focus throughout.
·
Does the Pentax UP 8-16x21 Zoom work well for
eyeglass wearers?
Yes, 14 mm eye relief and adjustable eyecups ensure full field without
distortion for glasses users.
·
Can I use the Pentax UP 8-16x21 Zoom in light
rain?
It's splash-proof for drizzle/ fog, but protect from heavy rain or immersion to
safeguard optics.
·
What makes the image quality consistent at
high zoom?
BAK4 prisms, aspheric lenses, and full multi-coating minimize distortion and
preserve brightness/contrast up to 16x.
·
Is the Pentax UP 8-16x21 Zoom lightweight
enough for all-day carry?
At 310 g, its compact design fits
pockets comfortably for extended hikes or events.