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Nikon ACULON A211 8×42 and 10×50

October 3, 2017 by Piergiovanni Salimbeni

I binocoli Nikon, della serie ACULON, sono da sempre apprezzati per il loro interessante rapporto prezzo/prestazioni.
La gamma comprende diversi formati, dal piccolo diametro di 21 mm, sino a quello classico da 50 mm.

 

Nikon Aculon A211 8×42

The modello A211 8×42, pare, ad esempio,  ideale per il neofita che vuole entrare nel mondo delle osservazioni naturalistiche con un budget prossimo ai 100 euro.

Seppur si stia parlando di prezzi decisamente interessanti  i Nikon Aculon possiedono delle caratteristiche presenti su prodotti di fascia superiore such as the rivestimento multi-strato delle lenti and the presenza di elementi asferici all’interno degli oculari che consentono di ottenere delle immagini, ben leggibili, anche ai bordi del campo.

 

 

La presenza dei prismi di Porro, inoltre, è foriera di ottime prestazioni, in proporzione al prezzo di acquisto, dato che consentono dei passaggi aria/vetro inferiori ai prismi a tetto.
A discapito di un maggior ingombro, i prismi di Porro, inoltre, forniscono una maggior percezione di tridimensionalità.

Visto che il loro utilizzo in Natura è preponderante, i binocoli oggetto di questa rapida disamina,  sono stati dotati di una spessa gommatura in grado di proteggere lo scafo ottico dai normali urti che potrebbero capitare nell’uso outdoor.

I portatori di occhiali, potranno anche beneficiare della presenza dei paraluce degli oculari dotati di un rapido sistema con rotazione/estrazione.

Caratteristiche tecniche del Nikon Aculon A211 8×42

Field of view in degrees 8
Apparent field 58.4°
Field of view at 1000 m 140
Exit pupil 5.3 mm
Relative brightness 28.1
Eye relief (mm) 12
Minimum focusing distance 5 m
Dimensioni mm 145 mm x 185 mm x 62 mm
Weight 755 g.
Prisms Leek

 

 

 Nikon Aculon A211 10×50

 

Per un uso ancor più’ universale che strizza l’occhio alle osservazioni  astronomica e alla nautica, pare, più’ proficuo l’utilizzo dell’Aculon 10×50.
Questo interessante binocolo entry-level presenta le medesime caratteristiche del formato 8×42 ma con una raccolta di luce maggiore, grazie, agli obiettivi da 50 mm di diametro.

Grazie alla presenza di serie di una filettatura è possibile collegare l’Aculon 10×50 ( ma anche tutti i prodotti della stessa gamma) alle piastre dei comuni cavalletti fotografici
per usufruire di immagini stabili, fattore primario per la percezione dei campi stellari.

Caratteristiche tecniche del Nikon Aculon A211 10×50

Field of view in degrees 6.5°
Apparent field 59.2°
Field of view at 1000 m 114
Exit pupil 5 mm
Relative brightness 25
Eye relief (mm) 12
Minimum focusing distance 7 m
Dimensioni mm 179 mm x 187 mm x 68 mm
Weight 900 g.
Prisms Leek

In summary.

I binocoli Aculon 8×42 e 10×50 potrebbero essere delle ottime scelte per chi si addentra, con molta curiosità e poco budget nel mondo delle osservazioni del Cielo e della Natura. L’8×42 è adatto maggiormente ad un uso naturalistico, date anche le sue dimensioni e la distanza minima di messa a fuoco garantita pari a cinque metri.
. L’Aculon 10×50, invece, potrebbe essere un ottimo regalo, insieme ad un buon atlante delle costellazioni, per fare avvicinare un ragazzo all’osservazione astronomica.

 

Piergiovanni Salimbeni
Piergiovanni Salimbeni

Piergiovanni Salimbeni - Journalist and independent tester, founder of Binomania.co.uk, with over 25 years of experience in evaluating optical and digital instruments. It offers practical reviews and personalised advice for informed purchasing choices.

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Filed Under: Binoculars Tagged With: Aculon, Nikon

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