Телескоп Explore Scientific PN208/812 Mark II OTA, рефракторен, 8x50 оптично увеличение, 208mm диаметър на лещата, 812mm фокусно разстояние

In the past few years the Explore Scientific Photo Newtons have become the standard workhorse for Deep Sky astrophotography. We now proudly present the second generation of this telescope, the Explore Scientific Photo Newton Mark II Hexafoc. The Explore Scientific Photo Newton Mark II will deliver you deeper images due to its – compared to competing 8” f/4 systems – oversized primary mirror and therefore faster optical system with the same exposure time. The big 85mm secondary prevents vignetting for optimal illumination The excellent 2.5” Hexafoc also does not cause vignetting due to its large diameter and makes focussing a joy – the smoothness and shifting-free operation sets new standards in this price class. This groundbreaking focuser, tube rings with 44mm universal standard dovetail and camera mounting feature and a high-end finderscope with illumination and laser-engraved scale leave nothing to desire even for demanding astrophotographers. The PN208 Mark II Hexafoc has a classical tube construction with an aluminium tube. The focuser can be upgraded with a 10:1 reduction without problems.

Features:

Aperture: 208mm; focal length: 812mm
Excellent 2,5” Hexafoc Focuser
Ready for the HR Coma Corrector
Large 85mm secondary and 2.5” focuser offers a perfect field illumination
2,5” Hexafoc focuser with possibility to upgrade to a 10:1 reduction
Universal 44mm Dovetail plate with stainless steel rail (fits LXD75/Great Polaris/EQ5)
Elaborate 6 point flotation system for mirror support


Спецификации:

Оптична конструкция

Рефракторни
Леща на обектива

Нютонов
Диаметър на главното огледало (апертура), mm

208
Диаметър на вторичното огледало, mm

85
Фокусно разстояние, mm

812
Най-голямо практическо усилване, x

416
Фокусно отношение

f/3,9
Прагова стойност на резолюцията, ъглова секунда

0,74
Гранична звездна величина

13,5
Окуляри

SUPER Plössl 26 mm
Визьор

8x50
Фокусиращо устройство

2,5'' Hexafoc
Размери на оптичната тръба, mm

230 x 790
Тегло на оптичната тръба, kg

9,8
Потребителско ниво

експерти, ентусиасти
Обекти на наблюдение

далечния космос



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