binoculars

PENTAX AD 9×28 WP binoculars review

Introduction
The Pentar company kindly provided me with PENTAX AD 9×28 WP binoculars for review. These are compact binoculars with a unique 9×28 formula. The inverting system is made on the basis of prisms “with a roof” (roof). The manufacturer declares a multi-layer anti-reflection coating, a sealed nitrogen-filled construction, BAK4 prisms with a phase-correcting coating, a protective coating of the front lenses, a long eye relief, and a body made of light aluminum alloy.

PENTAX AD 9x28 WP
PENTAX AD 9×28 WP

Declared technical characteristics:

SKU: 62831
Type: binoculars with a central focusing mechanism and roof-prisms
Objective lens: 3 elements in 2 group
Eyepiece lens constructions: 5 elements in 4 groups
Magnification: 9x
Objective lens diameter:  28 mm
Linear field of view at 1000m: 98 m
Exit pupil: 3.1 mm
Eye relief: 18 mm
Diopter adjustment range: -/+ 4 D
Focusing distance:: from 3 m to infinity
Eyepiece Ring: Helicoid Type
Height: 44 mm
Width: 115 mm
Depth: 117 mm
Weight: 365 g
Waterproof and nitrogen-filled (JIS Class 6) to handle the most extreme weather conditions (submersible to 1m).
Prism coating: BaK4, phase coating
Lens coating: multilayer coating of all optical elements
Minimum focusing distance: 3 m
Angle of view actual: 5.6° (note: lettering on the case)
Twilight factor: 15.9
Interpupillary distance: 58 mm – 72 mm

PENTAX UP 8-16×21 binoculars review

Introduction
I received PENTAX UP 8-16×21 binoculars for testing. This is a lightweight and compact zoom binocular with a 21mm aperture and magnification from 8x to 16x. The eyepieces have an aspherical element to reduce distortion. The belt has a quick release design. In addition, the binoculars themselves are light and compact, and due to good ergonomics, the image is quite stable even when viewed from the hands.

PENTAX UP 8-16x21
PENTAX UP 8-16×21

Declared technical characteristics:

SKU: 61961
Type: binoculars with a central focusing mechanism and “porro”-prisms made of BaK4 glass
Objective lens: 2 elements in 1 group
Eyepiece lens constructions: 4 elements in 3 groups
Magnification: 8х-16x
Objective lens diameter: 21 mm
Linear field of view at 1000m: 87-52 m
Exit pupil: 2.6-1.3 mm
Eye relief: 14-11 mm
Relative brightness: 6.7 – 1.7
Diopter adjustment range: +/- 4 D
Minimum focusing distance:   from 3 m to infinity
Eyepiece Ring: Helicoid Type
Height: 55 mm
Width: 111 mm
Depth: 111 mm
Weight: 310 g
Waterproof: no
Accessories: tripod adapter U (69552)
Prism coating: BaK4 (note: this is not a coating, but a prism material)
Lens coating: multilayer coating of all optical elements
Minimum focusing distance: 3 m
Angle of view actual: 5° – 3°
Twilight factor: 13.0-18.3
Interpupillary distance: 56 – 73.5 mm

PENTAX Papilio II 6.5×21 binoculars review

 

PENTAX Papilio II 6.5x21
PENTAX Papilio II 6.5×21

Introduction
I received an unusual PENTAX Papilio II 6.5×21 binoculars for testing. I have been interested in these binoculars for a long time, so I started testing them with interest. It is unique in that it allows you to focus at a distance of only 50 cm from the subject. This feature can be interesting for the study of various small objects, insects, plants, museum exhibits, etc. A special lens shift mechanism is also declared, which allows you to see a single field of view without double vision when examining close objects. An aspherical element is declared in the eyepieces to reduce distortion. The belt has a quick release design. In addition, the binoculars themselves are light and compact, and due to the small magnification and good ergonomics, the image is very stable and shaking of the hands is practically not felt.

Declared technical characteristics:
SKU: 62001
Type: binoculars with a central focusing mechanism and “porro”-prisms made of BaK4 glass
Objective lens: 2 elements in 1 group
Eyepiece lens constructions: 5 elements in 5 groups (note: aspherical element declared)
Magnification: 6.5x
Objective lens diameter: 21 mm
Angle of view actual: 7.5° (note: lettering on the case)
Linear field of view at 1000m: 131m
Exit pupil: 3.2mm
Eye relief: 15mm
Relative brightness: 10.2
Diopter adjustment range: +/- 4 D
Minimum focusing distance: 50cm / 0.5m
Eyepiece Ring: Helicoid Type
Height: 55mm
Width: 110mm
Depth: 114 mm
Weight: 290g
Waterproof: no
Accessories: tripod adapter U (69552)
Prism coating: BaK4 (note: this is not a coating, but a prism material)
Lens coating: multilayer coating of all optical elements
Minimum focusing distance: 0.5m
Twilight factor: 11.7
Interpupillary distance: 56 – 74 mm

Review of the Forester 8x42ED binoculars

Forester 8x42ED binoculars with Taobao came to my test. The binoculars are rare – there are no reviews, no tests.  Stated full multi coating, dielectric coating of prisms and ED-glass in the lenses.

Forester 8x42ED
Forester 8x42ED
Заявленные характеристики
Declared Specifications

Options, appearance, ergonomics
The binoculars come in blue cardboard packaging without any prints. There is a sticker with a QR code and the name of the binoculars. The set includes binoculars, a bag with a belt, a neck strap, lens caps, a double cap for eyepieces, a cloth for wiping optics and manual. The bag is made quite high quality. Our neck strap is wide, soft. The lens caps are held on the case of the binoculars – conveniently, they are not lost.

Fujinon KF 8x32W binoculars review

The Fujinon KF 8x32W binoculars came to my test. 8×32 format binoculars are considered the most versatile in combination of magnification / dimensions / weight parameters, suitable for daytime and astronomical observations. For ground objects at dusk, 8×32, of course, will be noticeably dimmer than 8×42 or 8×56, however, for long-term wear on the neck 8×32 will be more convenient. This is especially true for hunters, animal watchers and tourists.

I was very surprised that the Fujinon KF 8x32W has very few reviews. As it turned out, there are models that are very similar in characteristics and appearance to it – Sightron “Blue Sky” II 8×32, Kenko Ultra View EX OP 8×32 DH II, Vixen New Foresta HR 8×32 WP. Their case looks a little different, and also, most likely, a different coating, but there is a very high probability that optically they MAY BE similar to Fujinon KF 8x32W, and he himself is the “reincarnation” of the above binoculars.

Fujinon KF 8x32 W
Fujinon KF 8x32W

Declared specifications from the manufacturer’s website:

Magnification 8x
Eye relief in mm 14.5
Field of view 7.5°
Field of view at 1,000m in m 131.1
Exit pupil in mm 4.0
Twilight factor 16
Interpupillary distance range (mm) 58-72 (measured 54-74)
Weigth (kg) 0.47
Neck strap Supplied
Carrying case Supplied
Dimensions (Length × Width) 131 x 139 x 53

Also declared full multilayer coating (FMC), phase and silver coating of prisms. …

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