Manufacturer: Explore Scientific
Product number: 0219917

EUR 549,00


incl. 19 % VAT (DE)  
The VAT indicated refers to that applicable in Germany. After logging in, the VAT amount is adjusted to the applicable VAT of the stored delivery country. Therefore, the final price may vary accordingly.
excl. 6.95 € shipping costs (DE)  
Please log in to calculate shipping costs to your country.
more details to the shipping costs ...

  • On stock
  • Only 2 pcs left in stock




There are no reviews for this product
  • Details..
  • Technical data..
  • In the box..
  • Manufacturer infos..
  • Safety informations..
Explore Scientific 92° LER 2" eyepiece with 17 mm focal length
Eyepieces from Explore Scientific have a very good reputation. The offer very high viewing comfort and an excellent manufacturing quality. With the new 92° LER series, Explore Scientific not only fills a gap. The LER eyepieces set new standards through outstanding insight properties and observing comfort. This makes LER eyepieces an excellent choice for spectacle wearers.

Features and advantages of the LER 17 mm eyepiece:
Focal length 17 mm
Apparent field of view 92 degrees
8 lenses in 6 groups
Eye relief 22 mm (suitable for spectacle wearers)
Argon-purging against fogging, but also against intrusion of fungus or cleaning liquid
Rubber armour for high user comfort
Patented EMD-coating and blackened lens edges
Very high field sharpness even with fast Newtonians or rich field refractors
Robust transport box with magnetic lock and transport pouch

Focal length:17 mm
Apparent field of view:92 degrees
Eye relief:22 mm
Elements:8 lenses in 6 groups
Waterproof:yes
Length:148 mm
Weight:1100 grams
Telescope connection:2" barrel (stainless steel) with conical security cutoff
Filter thread:2" filter thread at telescope side
Diameter of the field stop:27.4 mm
ES LER 17 mm with protective caps
Transport pouch
Covering box

Manufacturer / Importeur:Bresser GmbH
Street:Gutenbergstraße 2
ZIP / City:46414 Rhede
Country:Germany
Telefon number:+49 2872 80740
Email:info@bresser.de
Website:www.bresser.de
Safety informations: PDF Download


Recommended accessories




Cleaning & Collimating

CleanerKit

TS-Optics Cleaning kit (five parts) - for almost all optical surfaces

TS-Optics Cleaning kit (five parts) - for almost all optical surfaces

  • On stock

EUR 9,98

Blasebalg

TS-Optics Bellows for gentle cleaning of optical surfaces

TS-Optics Bellows for gentle cleaning of optical surfaces

  • On stock

EUR 9,90

BA2905009

Baader Baader Optical Wonder Set - Cleaning Fluid and Cloth

Baader Baader Optical Wonder Set - Cleaning Fluid and Cloth

  • On stock

EUR 21,90


General Accessories

TSUHCL2

TS-Optics 2" Premium UHC Nebula Filter against Stray Light - more Contrast

TS-Optics 2" Premium UHC Nebula Filter against Stray Light - more Contrast

  • On stock

EUR 89,00

Reviews

Written by Peter Unterfrauner
on 2025-08-19

"Bin sehr zufrieden mit dem 17 ler Okular von Explore Scientific. Das Oku ist von der Mitte bis zum Rand scharf bei ca 90 Grad Sehfeld. Hätte nicht erwartet das eine solche gleichmäsige Schärfe im gesamten Gesichtsfeld möglich ist. Keines meiner bisherigen Okulare (zb Antares Speers Waler UWA) ist annähernd randscharf und dies bei weniger Sehfeld. Bei Tag ist es mir kaum möglich die 90 Grad Sehfeld als Ganzes zu überblicken, in der Nacht aber sehrwohl. Das Gewicht des Oku ist beträchtlich. Es braucht einen stabilen Okularauszug . Besonders bei der Verwendung im Tageslicht könnte man über eine höhere Gummimuschel nachdenken. Schöne Grüsse ***"

Written by Lothar Jakob
on 2020-08-06

"Super Okular mit gutem Einblick "

0 Product Shopping Cart