Pentax 10 X 43 Z Series Binocular Reviews
The ZD ED serial consist of top-of-the-range, quite pricy binoculars produced past Pentax. They come up with the following parameters: 8x43, 10x43 and 10x50. They all are Schmidt-Pechan constructions which roof prisms are phase correction coated and covered past silvery reflective coatings. Autonomously from that they are equipped with low-dispersion glass in objective lenses and some aspherical elements equally well. All air-to-glass surfaces are covered by multilayer antireflection coatings.
The metal barrel of the binoculars is padded with quality rubber armour. The interior is nitrogen filled and completely waterproof (up to i meter, JIS Class 6 rating). Buyers get both caps, a example and a strap. The binoculars come with 30-year guarantee period of the producer.
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| Magnification | Lens diameter | Angular field of view | Prisms | Eye relief | Weight | Price |
|---|---|---|---|---|---|---|
| eight | 43 | 110/m(6.3o) | BaK-4/roof | 22 mm | 715 chiliad | 3799 PLN |
| Owners opinions: 0 Specifications | ||||||
| Real front end lens diameter | Left: 42.91+/- 0.05 mm Correct: 42.9+/- 0.05 mm | 8 / eight.0 pkt | ||||
|---|---|---|---|---|---|---|
| Existent magnification | viii.19+/- 0.1x | 3/3.0 | ||||
| Manual | 87.nine+/- one% | fifteen/25.0 | ||||
| Chromatic aberration | Negligible in the eye, nearly medium on the edge. | vii.1/10.0 | ||||
| Astigmatism | Very low. | 8.6/10.0 | ||||
| Baloney | Altitude between the first curved line and the field centre compared to the field of view radius: 54% +\- 5% | 6/10.0 | ||||
| Coma | Appears far from the heart because in a distance of about 75% of the radius and is a bit lower than medium on the edge. | viii.iv/x.0 | ||||
| Blurring at the edge of the FOV | Blur occurs in a distance of 91% +\- 3% from the field of vision middle. | eight/10.0 | ||||
| Concealment at the border the FOV | Almost imperceptible. | 4.6/5.0 | ||||
| Whiteness of the prototype | Very nice, flat transmission graph. Compared to the predecessor the coatings are definitely meliorate. Practically white images, without any hues. | 4.six/5.0 | ||||
| Collimation | Perfect. | v/5.0 | ||||
| Internal reflections |
| 4/5.0 | ||||
| Housing | Pocket-size and shapely for a 43 mm course instrument. Good quality condom armour but it sticks out significantly virtually objectives. Rubberized twist-upwards eyecups with 4 stops. Produced in Nippon. | 7/8.0 | ||||
| Focusing | Significantly big, ribbed and comfy central wheel with a full plough range of 560 degrees. Information technology is properly damped. Comfortable diopter adjustment ring on the correct eyepiece which shifts but information technology moves the outer element. | 4.5/5.0 | ||||
| Tripod | In that location is a comfortable exit. | 3/3.0 | ||||
| Interpupilary distance | from 58.4 to 74.2mm | 5/half-dozen.0 | ||||
| Closest focusing distance | i.65 metres. | two/2.0 | ||||
| Eyepieces FOV | Apparent field of view of 51.7 deg (according to unproblematic formula) and 48.half-dozen deg (co-ordinate to tangent formula). | four/20.0 | ||||
| Field of view | Measured by u.s.a. amounted to 6.31 +\- 0.04 degrees and information technology was in perfect agreement with the specifications. A narrow field for such class of equipment. | five/8.0 | ||||
| Quality of the interior of the barrels | Black but slightly shiny tubes. Grey lesser. Make clean. | iv/5.0 | ||||
| Vignetting |
| four.five/8.0 | ||||
| Prisms quality | Adept quality BaK-4. | 8/eight.0 | ||||
| Antireflection coatings | Yellow-green-orangish on objectives, greenish on prisms, green-purple on eyepieces. Depression intensity. | 5/v.0 | ||||
| Warranty [years] | xxx | v/half dozen.0 | ||||
| Terminal outcome | 73.three% | 139.iii / 190 pkt | ||||
| Econo result | 0pkt. |
Summary
Pros:
- skillful manual,
- fantabulous whiteness rendering,
- proper correction of chromatic aberration,
- negligible astigmatism,
- moderate coma,
- abrupt image in the bulk of the field of view,
- slight brightness loss on the edge of the field,
- relatively small, shapely and solid casing for a 43 mm objective lens,
- clear images already from i.65 metres,
- exit pupils against a prissy, night background,
- proficient quality prisms and coatings,
- proper concealment of the interior and cleanliness inside tubes,
- long warranty menstruum.
Cons:
- not impressing field of view,
distinctly truncated exit pupils.
What could exist written in the summary? A very good pair of binoculars got an excellent issue. If its field was wider we would be far more happy but, on the other hand, if y'all construct a device with a narrow field of view y'all should at least ensure, similar Pentax, that the field is corrected in the best possible mode.
Compared to the previous DCF ED series we didn't notice any serious changes apart from the coatings; the transmission graph, shown below, is the proof that it can brand a difference.
Compared to the graph of its predecessor it is flatter and the values in the center of the visible spectrum are higher. Equally a result images provided by this pair of binoculars are a chip brighter, with better colour rendering. Information technology is an of import advantage.
We didn't have whatever objections to voicing a very positive opinion well-nigh the predecessor of this i; small wonder our opinion near its amend successor is even college. If you are not put off by a limited field of view of this one, the Pentax ZD 8x43 will definitely exist an first-class pick.
Source: https://www.allbinos.com/322-binoculars_review-Pentax_ZD_8x43_ED.html
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