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.
Declared specifications from the manufacturer’s website:
|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|
|Interpupillary distance range (mm)||58-72 (measured 54-74)|
|Dimensions (Length × Width)||131 x 139 x 53|
Also declared full multilayer coating (FMC), phase and silver coating of prisms.
Options, appearance, ergonomics
The binoculars are delivered in colorful cardboard packaging on which the main characteristics and parameters of the binoculars are indicated.
The rainguard for the eyepieces does not rest on the binoculars at all, however, this is what the manufacturer intended, since the binoculars are positioned for outdoor activities using. In fact, this is an eyepiece pad. If you raise the binoculars to your eyes, then the rainguard flies off the binoculars itself, holding on to the neck belt. This allows you not to waste time removing the cap when using binoculars while camping, but at the same time, the eyepieces are protected from rain and dust. For me personally, classic cap with a tight clip seem more usable, especially when carrying binoculars from the cold into the heat, as well as when transporting in a backpack without a native bag. If desired, you can purchase classical caps of a suitable diameter from a third-party manufacturer. Perhaps both types of covers have a right to exist, depending on the conditions of use of the binoculars.
The belt is 10 \ 26 mm wide, simple and a little rough – for constant wear on the neck I would also replace it.
The case of the binoculars is covered with rubber “armor” with a number of ribs and protrusions. This adds size, but at the same time significantly improves ergonomics. The binoculars are comfortable and pleasant to hold in your hands, and slipping out of your hands is almost impossible. At the same time, when observed with finger gloves, there may not be enough space.
Dimensions of the binoculars with covers – length 143 mm, width 125 mm, height 45 mm. The weight of the binoculars with covers is 520 grams.
Interpupillary distance changes smoothly and gently. The measured range of the interpupillary distance is 54-74 mm.
The diameter of the focusing drum is 32.2 mm, it is covered with rubber with 16 small protrusions. The angle between the protrusions is 22.5 degrees. To compensate for myopia of -1.5 diopters, a rotation of about 11 degrees is required. The stock of focus “beyond infinity” is 56 degrees, that is, approximately -3.75 diopters. The full range of rotation of the drum is 450 degrees. It spins very smoothly and evenly, with a quiet rustling, without champing. The end part of the drum, on which the characteristics of the binoculars are indicated, remains motionless, but it is glued crookedly – my internal perfectionist is indignant. When you reach the extreme focus points, a soft knock is heard. There are no channels out of sync. When refocusing at various distances, additional adjustment of diopters on the right eyepiece is not required. I liked the focuser.
Diopter correction is made in the form of a plastic ring with protrusions on the right eyepiece. When adjusting the diopter, the eyepiece rotates, moving along the optical axis. The ring is tight, it’s difficult to bring the focus down, but at the same time it’s very convenient to adjust the focus due to protrusions. Fine!
Eyecups inside metal, outside rubber, outside diameter 39 mm. There are 5 positions, extendable by 9.6 mm, butt without rounding. With respect to the eyecup plane, the lens is recessed by approximately 2.7 mm. The pupillary distance from the screwed-in eyecup is about 14 mm. In glasses with the eyecup screwed in, the entire field of view is visible, it is not necessary to cuddle with the eyes, but there is no gap between the glasses and the eyecups.
In general, the impressions of the case, mechanics and ergonomics are pleasant, but contradictory. On the downside, I’ll take a rather long case compared to other 8×32 binoculars (for example, Hakwe Endurance ED 8×32) – the Fujinon KF 8x32W binoculars are close to the 8×42 and 10×42 models along the length of the case. In addition, I did not find a socket under the tripod – in the front of the binoculars, the plug with the inscription “Fujinon” I just could not unscrew. Sadness.
The measured diameter of the lens is 31.9 mm. The outer antireflective coating is blue-green, then green, at the prisms – blue-green and purple. The outer surfaces of the eyepieces are flat, with a blue-green coating, the remaining highlights are green. All surfaces are coated. Dust, dirt, stains were not found inside.
The size of the eye lenses is 18.3 mm. As previously indicated, the pupil removal from the folded eyecup is about 14 mm. The size of the exit pupil is 4 mm. The measured field of view of the eyepieces is 56.4 degrees. The measured visible field of view is 7.5 degrees (the distance between the stars Vega and Sulafat). The edge of the diaphragm is clear, even.
The measured magnification is slightly less than the declared one and is approximately 7.9x.
Examination of the exit pupils showed that the binoculars have poor blackening near the lenses, namely the glare from the annular light-protective diaphragm. Because of this, spurious reflections inside the binoculars can occur. Prism ribs also without blackening.
This leads to the appearance of bright light up to half the field of view when observing dark objects against a light background, or if there is a bright area (sky) on top of the dark object.
The light test showed that the Fujinon KF 8x32W binoculars add a warm shade to the image – the transmittance in the red region of the spectrum is higher than in blue and green.
When testing on a sunny day, the image is bright and also very sharp in the central third of the field of view. With further distance from the center of the field of view, the sharpness decreases smoothly and stepwise worsens at the very edge. Chromatism on the axis is invisible, along the field it is very small and does not strike the eye.
Alas, under certain conditions, unpleasant light halos can occur caused by the reflection of light from light-shielding diaphragms in the lens. This is work in backlight, or if the observed object is dark and the sky is above (for example, a bird on a tree). In this case, the lower part of the exit pupil becomes shiny in the form of a sickle – it is this light that enters the eye. Very disappointing.
The distortion of the binoculars is very low, almost imperceptible. The image is slightly flattened when approaching the edge. Rolling ball is weak.
As already shown above, the binoculars noticeably “warm” the image. This leads to the fact that at noon the white seagull does not look white, but slightly yellowish.
At dusk and at night the image is bright. Around the bright lights visible rays. The binoculars are quite suitable for astronomical observations (stars, constellations, star clusters, bright objects of the Messier catalog). On the moon there is one dim little flare of green. Stars look good in about half the field of view. At the edge, the Vega star turns into a jellyfish the size of a 28 minute arc.
+ comfortable ergonomic body
+ excellent sharpness in the central zone
+ bright image
+ low chromatism on the axis and field
+ low distorsion
+ excellent collimation
+ good mechanics
+ long eye relief
+ all surfaces are coated
– strong glare from internal surfaces near the lens
– strong blur at the edge of the field of view
– warm tint in the image
– no tripod mount
– rough neck strap
Despite the conflicting impressions, I liked the binoculars and nevertheless registered in my backpack thanks to the bright picture, good ergonomics and excellent sharpness in the central region. Buy it or not – decide for yourself, after weighing all the pros and cons.