Autore: Michele (212.17.199.---)
Data: 05-26-03 12:07
Ciao a tutti,
visto che la mia affermazione sui nuovi oculari Pentax ha destato un po' di curiosita', ho pensato di postarvi per intera la notizia (in inglese).
Vi informo inoltre che a breve (2/3 settimane) saranno disponibili dei nuovi oculari Monocentrici a tre elementi della TMB e, fra qualche mese, sempre con schema Monocentrico, una serie della Astro Physichs. La denominazione esatta e' Super Monocentrics, probabilmente dotati di vetri particolari.
Questi oculari sono particolarmente indicati per l'osservazione in alta risoluzione e pare, da test preliminari, che siano addirittura superiori ai rinomati e costosissimi Zeiss...
Ciao,
Michele
Pentax Corporation is pleased to announce the introduction of the SMC
PENTAX XW Series of eyepieces designed for use with Pentax-brand
spotting scopes and telescopes in ground and astronomical
observations. Consisting of eight models with a focal length ranging
from 3.5 mm to 40 mm, the new XW series features a wide apparent
angle of view ( 70 degrees), JIS Class 4 weather-proof construction
and a long eye relief ( 20 mm ). The new optics, incorporating high-
refraction, low-dispersion lanthanum glass elements and PENTAX-
original multi - layer coating , delivers bright, high-resolution
images with minimal aberrations and distortions.
The new XW series retains all the popular features of the current XL
series, including eyepiece shape , while upgrading many vital
specifications. All XW models feature a 70-degree apparent angle of
view, delivering a more dramatic , wide-perspective image than the 65
degrees of the XL-series. Laminted optical elements are threadet with
the innovative partial coating, which offers mugh higher light
transmission capability than conventional full-surface coating.
Thanks to advanced computer simulation technology , internal
reflections are drastically reduced to produce brighter , clearer
images.
Replacing the excisting XL-series , the new XW-series can be used
with the PENTAX PF-80ED, PF-EDA and PF-100ED spotting scopes and a
range of PENTAX telescopes to optimize their performance and
capability. The XW 7, XW 10, XW 14 and XW 20 models are suited for
both ground and astronomical applications, while the XW3.5, XW5, XW30
and XW40 modells are exclusivly designed for astronomical
observations.
About the new Pentax XO , new Orthoscopic series not much info is
available, excapt that they have a standart 1.25" barrel , a slightly
larger FOV and new better multicoatings.
Tchn.. Specs. of new XW eyepieces
SMC Pentax XW
70° FOV
neewest SMC-coating
ED-Lanthanum Glas
6-8 Lenses in 4-6 Groups
weather proofed
Transmission ca.98%
Reducing of all abberations and distortions
eye relief 20 mm
XW 3.5 mm, XW 5 mm, XW 7 mm, XW 10 mm, XW 14 mm, XW 20 mm are 1.25"
models
Prices for the 1.25" Modells US $ 329
Start of delivery: around July/August 2003
XW 30 mm and XW 40 mm are 2" models
Prices for 2" Modells US $ 549
Start of delivery: around July/August 2003
Tchn.. Specs. of new XO eyepieces
SMC Pentax XO
44° FOV
new SMC-Coating
ED-Lanthanum Glas
weather proofed
Transmission ca.98%
Reducing of all abberations and distortions
eye relief at XO 2.5 mm : 3.6 mm
eye relief at XO 5 mm : 3.9mm
Prices are not fixed yet
Start of Delivery around July/August 2003
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