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819 EUR
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price without VAT: 666 EUR
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The Fujinon 10x50 FMTR-SX is a high-grade Porro-prism binocular designed for precise field, low-light and astronomical observations. The FMT series combines advanced optics with a very robust housing, which makes this binocular highly regarded by nature observers, uniformed services and hunters. Thanks to the 5 mm exit pupil and wide field of view, it provides a bright image and comfortable long observing sessions.
The optical system uses BaK-4 prisms and EBC coatings on all optical surfaces. The built-in field flattener ensures sharpness across the entire field of view. The housing is waterproof, nitrogen-filled and rated for operating temperatures from -20°C to +50°C. Individual focusing on each eyepiece further increases optical precision and reliability.
• BaK-4 prisms and full EBC multi-layer coatings
• field flattener – sharpness across the entire field of view
• waterproof housing, filled with dry nitrogen (fogproof)
• wide 6.5° field of view
• long eye relief of approx. 20 mm
• housing rated for temperatures from -20°C to +50°C
• tripod-mountable
• individual focus for both eyepieces
• magnification: 10x
• objective diameter: 50 mm
• prism design: Porro
• prism glass: BaK-4
• anti-reflection coatings: EBC (multi-coating)
• field of view: 6.5° / 113 m / 1000 m
• apparent field of view: 59.2°
• exit pupil: 5 mm
• eye relief: 19.8–20 mm
• minimum focusing distance: 20 m
• diopter adjustment: ±5
• interpupillary distance adjustment: 56–74 mm
• water resistance: up to 2 m / 5 minutes
• nitrogen filling: yes
• operating temperature range: -20°C to +50°C
• tripod mount: yes
• dimensions: 198 × 218 × 78.5 mm
• weight: 1400 g
• Fujinon 10x50 FMTR-SX binoculars
• neck strap
• objective and eyepiece caps
• carrying case with strap
astronomy
hunting
sailing
nature
military
30-year manufacturer's warranty
(note: the current set includes a graphite / black case with a grey logo)
• C – equipped with a built-in compass
• CF – "central focusing" – central focusing mechanism
• ED – binocular optics made of extra-low dispersion glass (Extra low Dispersion), providing very good correction of chromatic aberration
• F – stands for Fujinon and Flat Field – highest-grade selected optical elements for excellent contrast, sharpness and wide field of view
• M – "military" – meets durability and robustness requirements for military binoculars
• MT – "marine tested" – tested for navy use (meets US Navy standards, including resistance to salt water)
• r – "reticle" – built-in rangefinding reticle
• R – "rubber coated" – rubber-armoured housing
• SX – computer-designed lenses and BaK-4 prisms coated with MC layers using the patented EBC (Electron Beam Coating) technology, providing up to 99.9% transmission per air-to-glass surface; overall transmission of the binocular can reach up to 95%
• WP – "waterproof" – waterproof binoculars (up to 2 m depth)
>> FREQUENTLY ASKED QUESTIONS <<
Question: On the internet I see designations FMTR-SX-2 and FMTR-SX. What is the difference between these two models? Is the model you offer without the "2" some older / inferior version?
Answer:
Several years ago the European distributor of Fujinon introduced the SX-2 designation for binoculars with a slightly modified, improved design. However, this was only a temporary designation, at a time when both versions were available on the market. Today, all binoculars offered on the primary market (i.e. new) are the newer design. Therefore we do not distinguish between SX and SX-2, because the manufacturer does not make such a distinction either. You may still find such "relics" in Polish descriptions online, but they can be safely ignored.
Here is the exact statement from the distributor (from 2014):
In response to numerous inquiries regarding the markings on MT, FMT and FMTR binoculars, I would like to inform you that the only current marking on binoculars is SX.
FujiFilm explained that about 10 years ago the MT, FMT and FMTR series binoculars were marked SX, which defined the type of coatings.
At that time the coatings were upgraded. Since there were still binoculars with the old coatings in stock, the binoculars with the new coatings were marked SX2 in order to distinguish them.
After some time, when the binoculars with the old coatings had been sold out, the SX designation was restored. Binoculars with the old coatings have not been produced for about 10 years.
They can only be found on the second-hand market.
However, in many documents and descriptions you can still find the SX2 designation. Nevertheless, the currently produced binoculars do not carry such markings. They are marked as SX only.
Question: What do the numbers 10x25 / 10x50 / 7x50 / 20x60 / 20x80 / 8-20x50 / 10-30x50 given with the binocular name mean?
Answer:
The first number in a notation like 7x50 is the angular magnification (seven times), while the second is the objective diameter in millimetres. A notation like 8-20x50 or 10-30x50 means we are dealing with a zoom binocular, i.e. equipped with a system for continuously changing magnification, here from 8 to 20 times or from 10 to 30 times. The number 50 is, of course, the objective diameter.
Question: Is a case and neck strap included with the binoculars?
Answer:
Yes, every binocular comes with a case and a neck strap, and usually also objective and eyepiece caps, unless it is explicitly stated that they are not included.
Question: What is the influence of magnification and objective diameter on the binocular image?
Answer:
The higher the magnification, the more details can be resolved, but the lower the surface brightness of objects. Therefore, for hunting binoculars, magnification should be between 7x and 10x; for birds and landscapes we recommend magnifications between 7x and 12x; and for aircraft observation one usually chooses high magnifications of about 15–20x or zoom binoculars.
On the other hand, the larger the objective diameter, the higher the resolution of the binoculars and the brighter the image, but also the larger and heavier the instrument, which may sometimes require a photographic tripod.
Question: I still don't know which binoculars to choose. I want a universal model with good parameters, so that "you can see a lot". Which should I pick?
Answer:
The most universal binocular specification is 10x50, and that is what we recommend – it offers good detail resolution and at the same time high image brightness, a wide field of view, and does not require a tripod.
Question: Is it better to choose a fixed-magnification binocular or a zoom binocular?
Answer:
Zoom binoculars are equipped with an additional optical system that allows the magnification to be changed. In optics, "less is often more". Every additional optical system that is not a corrector of an aberration will always have a negative impact on image quality. It is similar to photographic lenses – the most highly valued are those with a fixed focal length, not zooms. On the other hand, zoom binoculars are more versatile, as hardly anyone carries 2–3 binoculars with different magnifications.
Question: Does this binocular have glass objectives or plastic ones?
Answer:
All quality binoculars have fully glass optics, because only glass can be ground and polished to the required shape, whereas polymers ("plastics") are limited by the accuracy of their moulds.
Question: In the specification you mention anti-reflection / anti-glare coatings. What are these? Are anti-glare coatings there to prevent the binoculars from giving away my position, i.e. to avoid "glints" from the Sun?
Answer:
Anti-reflection coatings, also called anti-glare coatings, are used to increase the efficiency of an optical system, for example a binocular, but essentially any optical device. Optical efficiency describes what percentage of the light entering the system passes through it. You should remember that when light hits the boundary between two optical media, e.g. glass/air, a certain fraction of the beam is reflected. From everyday experience we know that we can see our reflection in a window – this is exactly the effect.
To minimise these losses, anti-reflection coatings are used so that more light passes through the boundary and less is reflected.
Anti-reflection coatings can differ in type and quality, and often they are the key cost driver in top-class binoculars, where overall transmission can reach as much as 95%. It is worth knowing that anti-reflection coatings are applied to the optical surfaces of microscope, telescope, spotting scope, riflescope, photographic lens or night vision optics for exactly the same reason as in binoculars.
Question: In the descriptions you mention prism glass types BK7 and BaK-4. What is this about?
Answer:
Most optical prisms are made of BK7 (borosilicate) glass or BaK-4 (barium crown) glass. BaK-4 is a higher-grade glass and provides brighter and sharper images. It is also more expensive and is usually found in higher-end binoculars. This is particularly worth paying attention to if you are looking for binoculars for hunting or astronomy.
Question: I did not find some parameters of this binocular in your description, which I saw on other websites. Can I find out its relative brightness and twilight factor?
Answer:
For clarity, we usually do not list secondary parameters that do not add information beyond what is already given. Nevertheless, these parameters can be calculated easily:
• the exit pupil is the circular image of the objective formed in the eyepiece; its diameter is equal to the objective diameter divided by the magnification, e.g. for a 7x50 binocular it is 50/7 ≈ 7 mm, for a 10x50 binocular: 50/10 = 5 mm, and for a 20x60 binocular: 60/20 = 3 mm; this parameter is usually provided in the description
• relative brightness is the square of the exit pupil (see above); for a 10x50 binocular the exit pupil is 5 mm, so the relative brightness is 25; for a 7x50 binocular the brightness is 50, and for a 20x60 binocular it is 9, etc.
• the twilight factor is another secondary parameter valued by night hunters; it is equal to the square root of the product of magnification and objective diameter. With a simple calculator you can quickly obtain this value:
- for 8x40 binoculars: 17.9
- for 7x50 binoculars: 18.7
- for 10x50 binoculars: 22.4
- for 20x60 binoculars: 24.5
Question: I'm looking for binoculars for astronomy. Which should I choose?
Answer:
There is no single short answer to this question. Astronomical binoculars are simply very good binoculars. This means very good correction of optical aberrations (mainly chromatic aberration and edge distortion) and high optical efficiency. For these reasons, we do not recommend zoom binoculars for astronomy, with a few exceptions. An astronomical binocular does not have to have high magnification – high magnification is the domain of telescopes. A binocular should usually be handy so that you can always take it when you cannot take a telescope – in that case we choose 7x50, 10x50 or 15x70 binoculars. Usually, because large dedicated astronomical binoculars such as 20x80 or 22x100 form a separate class of optical instruments that require tripod use.
For a beginner, an astronomical binocular is used to learn the sky, star colours and to locate the brightest deep-sky objects. For an advanced observer, a large binocular is a very efficient instrument for observing comets, variable stars, nebulae, star clusters and galaxies.
Question: I'm looking for binoculars for a yacht / kayak trip / fishing / sea use. Which should I choose?
Answer:
Binoculars for use on the water must be waterproof, nitrogen-filled and should have 7x magnification, as only this magnification guarantees a bright and stable image.
Question: I'm looking for binoculars for birdwatching. Should I choose high magnification (16x, 20x or zoom binoculars)?
Answer:
For birdwatching we usually recommend fixed-magnification binoculars with low or medium magnification, i.e. from 7x to 12x. The optimal combination for a birdwatcher is a fixed-magnification binocular plus a zoom spotting scope on a photographic tripod.
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