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Binoculars review

Nikon Monarch 7 8x30

Nikon Monarch 7 8x30
24 March 2014
Optyczne.pl 
The Nikon Monarch 7 series of binoculars was launched on the market in the middle of 2012. At first the producer offered just two models: the 8x42 and the 10x42. In 2013 the series was enlarged by other two small and handy devices: the 8x30 and the 10x30. All of those are roof prism Schmidt-Pechan constructions made of BaK-4 glass; they feature dielectric high-reflective multilayer and phase-correction coatings.

The ED (Extra-low Dispersion) glass was used in the construction of the Monarch 7 instruments as well; apart from that they have wide angle eyepieces with a wide field of view. All air-to-glass surfaces are supposed to be covered by antireflection, multilayer coatings and the outer elements are covered by scratch-resistant coatings.

The chassis of the binoculars of this series are made of a fiberglass-reinforced polycarbonate resin with rubber armouring. They are watertight up to a depth of 1 meter for up to 10 minutes. The series is produced in China. Buyers get in the product bundle: caps, a case and straps. The binoculars of this series come with a 10-year guarantee period.

Pictures
  • Lornetka Nikon Monarch 7 8x30
  • Lornetka Nikon Monarch 7 8x30
  • Lornetka Nikon Monarch 7 8x30
  • Lornetka Nikon Monarch 7 8x30
Manufacturer data

Manufacturer:

Nikon
web site

Distribution / Sales:

Nikon Polska
web site

Magnification Lens diameter Angular field of view Prisms Eye relief Weight Price
8 30 145/1000(8.3o) BaK-4/roof 15.1 mm 435 g 1699 PLN
Results of the review
Real front lens diameter Left:   30.2+/- 0.05 mm
Right:  30.2+/- 0.05 mm
8 / 8.0 pkt
Real magnification 7.95+/- 0.05x 3/3.0
Transmission 85.1+/- 0.05% 13/25.0
Chromatic aberration Negligible in the centre, on the edge between medium and small level. 7.8/10.0
Astigmatism Properly corrected. 7.2/10.0
Distortion The distance of the first curved line from the field centre compared to the field of view radius: 46% +\- 5% 5/10.0
Coma Appears quite far away because in a distance of 75-80% from the field centre and is a bit higher than medium on the very edge. 7.9/10.0
Blurring at the edge of the FOV The blur occurs in a distance of 74% +\- 3% from the centre of the field of view. 4/10.0
Darkening at the edge the FOV Low. 4.1/5.0
Whiteness of the image Good. 3.9/5.0
Collimation Perfect. 5/5.0
Internal reflections
Left: Right:
Nikon Monarch 7 8x30 - Internal reflections - Left Nikon Monarch 7 8x30 - Internal reflections - Right
Average.
2.5/5.0
Housing Very small, shapely and handy, comfortable to handle and to look through. Twist-up rubber eyecups with four click-stop settings. Good quality rubber armour, without any unpleasant smell; it sticks well to your hand but also sticks out in some places, near objectives as well. Objective caps attached on rubber straps. The binoculars are produced in China. 6.5/8.0
Focusing Huge central wheel covered by rubber ribs. It moves smoothly, evenly and is well-damped. The full working scale amounts to 390 degrees. Individual focusing through a comfortable ring on the right eyepieces. The ring moves the outer ring. 4.5/5.0
Tripod There is an accessible tripod stand exit. In the 8x32 binoculars test we granted all devices on average 1.5 points in this category as a tripod exit is rarely used in this class of equipment. 1.5/3.0
Interpupilary distance from 55 to 73.2mm 4/6.0
Closest focusing distance 1.65 m 2/2.0
Eyepieces FOV Apparent field of view of 65.3 deg (according to simple formula) and 59.4 deg (according to tangent formula). 14/20.0
Field of view Measured by us amounted to 8.21 +\- 0.04 degrees and was slightly narrower than stated in the specifications. A big field of view for this class of equipment. 7/8.0
Quality of the interior of the barrels Black, ribbed tubes. Black bottom. Both parts are slightly shiny though – forget about a matt finish. A bit too many specks of dust and small scratches. 3.2/5.0
Vignetting
Left: Right:
Nikon Monarch 7 8x30 - Vignetting - Left Nikon Monarch 7 8x30 - Vignetting - Right
OL: 0.37%, OR: 2.23%
6/8.0
Prisms quality Good quality BaK-4. 8/8.0
Antireflection coatings Green-yellow on the objectives, green-yellow-purple on the eyepieces and greenish on the prisms. Medium intensity. 4.5/5.0
Warranty [years] 10 4.5/6.0
Final result
72.2%
137.1 / 190 pkt
Econo result 0pkt.

Summary

Pros:
  • small, handy and shapely casing,
  • wide angle of view,
  • sensible transmission,
  • good correction of chromatic aberration,
  • proper correction of astigmatism,
  • slight coma,
  • slight light fall-off on the edge of the field of view,
  • good colour rendition,
  • sharp image already from 1.65 metres,
  • good quality coatings and prisms.

Cons:
  • sharpness level on the very edge could have been better,
  • a bit truncated pupils.


I’ve never tried to hide the fact that, in my opinion, real binoculars start from a 30 mm objective lens. I can consider something with 8x28 parameters as a pair of binoculars as well but only at a push. Such inventions as 8x20 or 10x25 devices have just one asset: their small dimensions. Apart from that they represent quite a collection of serious flaws - poor ergonomics, slippery, uncomfortable grip, a narrow apparent field of view and a pitch-black image. Small wonder I am more interested in 8x30 binoculars – still small but handy and optically good. Such equipment can be recommended to any fan of daytime trips or excursions. A 30 mm objective lens joined with 8x magnification ratio provides sensible surface brightness of the image and different producers can offer an apparent field of view as large as 8 degrees. Such a pair of binoculars is devoid of many flaws which plague 8x20 and 10x25 models still remaining very small and handy.

The Nikon Monarch 7 8x30, presented not so long ago, seems to be a perfect candidate for great success – it is really small and handy. It can be noticed perfectly well in the photo below where it is positioned next to one of the smallest 8x32 class pairs of binoculars, the Leica Ultravid 8x32 HD. What’s more, it weighs just 435 grams and boasts a wide apparent field of view, amounting to 8.3 degrees. Apart from that you don’t have to spend as much on it as you must pay for the Leica or the Swarovski Companion CL 8X30, which is very similar to the Nikon tested here.


Officially everything looks just peachy – time for the reality check. You can start with the build quality. Despite the fact that this pair of binoculars costs about 500 USD it is produced in China. Not so long ago such an amount of money was enough to buy you a decent piece of equipment with an inscription ‘Made in Japan’; the situation has changed, though. To tell you the truth everything would be quite all right if only it didn’t entail the lowering of build quality. In the case of the Monarch 7 we are worried about obvious slacks in the rubber padding. If you can feel them distinctly in a new specimen, how will it look after several years of wear and tear? We count on the users of this pair of binoculars sharing their impressions with us in our database. Truncated pupils are also worth mentioning here – a clear sign that the producer tried to save on the size of the prisms.

When it comes to the optics, though, there are no reservations. You can be slightly displeased with the not very impressive sharpness on the edge of the field of view; still the wide apparent field of view, with good correction of coma, astigmatism, chromatic aberration or brightness loss more than compensates for it. The transmission, as you can find on a graph below, hardly breaks any records but there is nothing to criticize either. A result of 85% in the centre of the visible spectrum and over 90% for red light is good, especially if you take into account the fact that you deal here with a moderately priced roof prism device.


To sum up we can write with confidence that the Nikon Monarch 7 8x30 made a very positive impression on us. It is a small, physically light and optically good pair of binoculars with a wide apparent field of view. Paradoxically, its biggest rival, the Nikon E2 8x30, is produced by the same company; it costs almost the same although its field of view is even wider. Still if you care about waterproof qualities, a bit lower weight and smaller parameters, the Monarch 7 will be a better choice.