Explore Scientific 92° LER Eyepiece 12mm
12mm high resolution reference eyepiece with large eye distance, 92° apparent field and argon purging
- Large eye distance and great image sharpness
- Excellent viewing position for people with glasses
- Excellent field sharpness even with fast optics
- Patented EMD"-coating to maximize contrast
- Scope of delivery: Eyepiece with box and pouch
- Blackened lens edges to avoid reflexes
- Argon-purging prevents internal fogging, the sealing facilitates cleaning
- Stainless steel barrel with conical security cutoff
- Gift box with magnetic lock - additional soft pouch for easy transport in the field
- Find all specifications of all Explore eyepieces in the table in the folder "Media"
With BRESSER, you can enjoy a smooth introduction to the vast world of astronomy. Our detailed information ("Telescope Guide") provides valuable tips for beginners—but even experienced astronomers can use the information we provide (e.g., tables for the geographical latitude of all major world cities) as a reference.
Here is the table of contents of the comprehensive BRESSER Telescope Guide:
- 2. The View into the Starry Sky
- 2.1 Observing with the Naked Eye
- 2.1.1 Observing Constellations with the Naked Eye
- 2.2 Observing with Binoculars
- 2.2.1 Observing Planets and Moons with Binoculars
- 2.2.2 Observing Deep Sky Objects with Binoculars
- 2.2.3 Every Beginning is Easy
- 2.3 Observing with a Telescope
- 2.4 The Moon
- 2.4.1 The Moon Phases
- 2.4.2 The Far Side of the Moon
- 2.4.3 The Moon Map
- 2.4.4 Maria (Seas)
- 2.4.5 Mare
- 2.4.6 Craters
- 2.4.7 The Ray Craters
- 2.5 Observing the Solar System with a Telescope
- 2.5.1 Where are the Planets?
- 2.5.2 Planet Observation
- 2.5.3 The Position of the Planets Relative to the Sun
- 2.5.4 The Planets Introduce Themselves
- 2.5.5 Deep Sky Observation with a Telescope
- 2.6 Practical Observation Tips and Tricks
- 2.6.2 Tips for Optimal Observation Conditions
- 2.7 The Most Beautiful Objects Throughout the Year
- 4. Telescopes
- 4.1 The Telescope as an Observation Instrument
- 4.2 Optics
- 4.2.1 Refractor (Lens Telescope)
- 4.2.2 Reflector (Mirror Telescope)
- 4.3 Mechanics
- 4.3.1 Altazimuth Mount
- 4.3.2 Equatorial Mount
- 4.3.3 Drive Motors
- 4.4 Accessories
- 4.4.1 Eyepieces
- 4.4.2 Important Tips for Eyepiece Selection
- 4.4.3 Filters
- 4.4.4 Photographic Accessories
- 4.4.5 Other Accessories
- 5.1 Which Telescope for Whom?
- 5.1.1 Deep-Sky Observations
- 5.1.2 Observing Closer Planets
- 5.1.3 The Topic of Portability
- 5.1.4 Price Factor When Buying a Telescope
- 6. Useful Tables
- 6.1 Table for the Geographic Latitude of All Major World Cities
- 6.1.1 Observers in the Northern Hemisphere (N):
- 6.1.2 Observers in the Southern Hemisphere (S):
- 6.2 Lookup Table for Notable Stars
- 6.3 Getting Acquainted with the Universe - or: Distances in Space
Sky Guides by Bresser
Testbericht zu Explore Scientific 92° LER Okular 12mm
von Abenteuer Astronomie
Die Zeitschrift Abenteuer Astronomie hat in der Ausgabe 1/2016 im Okulare und Zubehör Praxis-Check das Explore Scientific 92° LER Okular 12mm ausgiebig getestet. Ein Kernthema war die Eignung für Brillenträger.
Okulare mit 100° scheinbarem Gesichtsfeld haben in den letzten Jahren den Markt und auch die Beobachtungserfahrung revolutioniert – aber nicht für alle Beobachter. Brillenträger und Freunde eines bequemen Einblicks mussten bislang mit deutlich kleineren Gesichtsfeldern auskommen. Explore Scientific hat diesem Thema nun die 92°-LER-Okularreihe gewidmet.
Positiv beeindrucken konnten die sehr gute Abbildungsleistung und der insgesamt hervorragende Eindruck für Brillenträger und Freunde eines unkomplizierten Einblicks.
Das sehr positive Fazit:
Die Okulare machten insgesamt einen hervorragenden Eindruck. Für Brillenträger und Freunde eines unkomplizierten Einblicks eröffnet die 92°-LER-Serie ganz neue Anblicke bei insgesamt sehr guter Abbildungsleistung. Die kleinen Abbildungsfehler können dies nicht schmälern, da sie in der Praxis selten erkennbar werden. Aufgrund des unkomplizierten Einblicks ist es auch naheliegend, an den Einsatz der Okulare bei Sternwarten-Führungen zu denken. Das gerade noch eingetroffene 17mm Serienexemplar lässt sich übrigens nur anhand der Seriennummer vom Prototypen unterscheiden.
Lesen Sie den ausführlichen Testbericht im bereitgestellten Download - viel Spaß!
- & Download (pdf)Zum Testbericht von Abenteuer Astronomie160 K
Product information "Explore Scientific 92° LER Eyepiece 12mm"
These eyepieces are the choice for observers wearing glasses - with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy.
The patentet EMD-coating teams up together with internal baffles to produce high contrast images and to prevent reflexes and ghosting.
The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses.
The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come.
FEATURES
- Large eye distance and great image sharpness
- Excellent viewing position for people with glasses
- Excellent field sharpness even with fast optics
- Patented EMD"-coating to maximize contrast
- Blackened lens edges to avoid reflexes
- Argon-purging prevents internal fogging, the sealing facilitates cleaning
- Stainless steel barrel with conical security cutoff
- Gift box with magnetic lock - additional soft pouch for easy transport in the field
SCOPE OF DELIVERY
- Eyepiece
- Box
- Pouch
| Apparent field of view (degrees): | 92 |
|---|---|
| Batteries required: | No |
| Colour: | black |
| Diameter (mm): | 70 |
| Extended warranty (years): | 10 |
| Eyecups: | Rubber eyecups, foldable |
| Eyepiece Barrel Diameter (mm): | 50.8 |
| Eye relief (mm): | 19.9 |
| Field diaphragm (virtual, mm): | 19.6 |
| Focal length (mm): | 12 |
| Length of the eyepiece barrel (mm): | 33 |
| Lenses/Groups [Eyepiece]: | 8/6 |
| Material: | Stainless steel |
| Net weight (without access.) (g): | 1036 |
| Total length (mm): | 154 |
| Waterproof 8): | Yes |
Product and safety instructions
Manufacturer:
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede
www.bresser.de
- General safety instructions DANGER Risk of eye injuries! Never look directly at the sun or near the sun through this device. There is a risk of blindness! Children should only use the device under supervision. Keep packaging materials (plastic bags, rubber bands, etc.) away from children! There is a risk of suffocation! FIRE HAZARD! Do not expose the device especially the lenses to direct sunlight! The light concentration could cause fires. RISK of material damage! Do not dismantle the device! In case of a defect, please contact your dealer. They will contact the service center and may send the device in for repair. Do not expose the device to temperatures above 60°C!
- Never look at the sun through an eyepiece/telescope without a certified protection filter. A moon filter can never be used for solar observation. The moon filter is only suitable for moon observation. The solar filter must be mounted in front of the telescope opening, not at the eyepiece. Otherwise, the concentrated light beam through the optics will immediately destroy the filter foil, leading to severe eye damage, including permanent blindness.
- Never leave the optics unattended. Children and inexperienced adults could point the telescope at the sun without proper precautions and lose their eyesight.
- Do not expose the device to high temperatures.
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