Lire La Nature - Astronomie Plus.

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Welcome to the website of Lire La Nature/Astronomie Plus.
Our prices are based upon the actual exchange rate of the Canadian dollar.

Astronomie Plus

Material for Astronomy · New Products
· Special Sale
· Gift Certificates
· Used stuff corner
· Telescopes for Astronomy
    ·Refractors
    ·Newtonian Reflectors
    ·Catadioptrics
    ·Solar telescopes
    ·Dall-Kirkham Astrographs
· Binoculars for Astronomy
· Eyepieces
· Binocular Heads
· Barlows
· Filters
    ·Filter Sets
    ·Planetary Filters
    ·Light-Pollution Filters
    ·Deep Sky Filters
    ·Solar Filters
    ·Lunar Filters
    ·Neutral Filters
    ·CCD Filters
    ·Other Filters
· Spectrographs
· Mount
    ·Equatorial Mount
    ·Azimutal Mount
· Field Tripods
· CCD Cameras
· Books & Maps
· Educative Games
· Softwares
· Globes
· Carrying cases
· Astrophotography
    ·General
    ·Focal Reducers
· Others accessories
    ·Accessory Kits
    ·Counterweights
    ·Dew Control
    ·Dovetails
    ·Electrical Adapters
    ·Filter cases
    ·Finders
    ·Focusers
    ·Focus Motors
    ·Mecanical Performances
    ·Motor Drives
    ·Star Diagonals
    ·Tube Rings
    ·Visual Performances
    ·Others
· Observatories

Lentilles de Barlow / Barlow Lenses

POWERMATE

POWERMATE 1,25" 5x

The Powermate consists of a negative doublet plus a positive “pupil-correcting” doublet. This 4-element system provides the magnifying function of a Barlow without its limitations by restoring the field rays back to their original direction, as if the Powermate were not there. The result is a pure magnification increase.

Vignetting, edge field aberrations and pupil movement - all introduced when using Barlows with long focal length eyepieces, are minimized.

Telecentric operation (field rays leave parallel to optical axis, unlike Barlow lenses which diverge rays).
This is ideal for Hydrogen-alpha filter use such as with Daystar models.

High performance for image amplification, CCD or film.

Flexible for visual and imaging with all types of telescopes and eyepieces. Essentially Parfocal, and with nearly constant magnification regardless of image distance behind top surface (except 5x model which increases 1x for every 35mm of image distance increase).

Higher magnifications are possible with high optical performance compared to “doubling up” Barlows.

All will reach parfocal point in star diagonals, except for the 2”, 2x which comes very close.

TELPMT-5126
226.95 CAN$

Lire La Nature inc.

Material For Natural Sciences · New Products
· Special Sale
· Gift Certificates
· Used stuff corner
· Binoculars
· Night vision devices
· Spotting Scopes
· Eyepieces for spotting scopes
· Accessories for spotting scopes
· Digital Photography
· Tripods
· Microscopes
· Books and CDs
· Educative Games
· Compasses and GPS
· Material for Meteorology
· Magnifying Glasses
· Globes
· Trekking
· Various Accessories
· Cities & Organisations

Tous nos prix n'incluent pas les taxes applicables ainsi que les frais de port et sont sujets à changement sans préavis.
Les spécifications des produits sont sujettes à changement sans préavis.
Our prices do not include applicable taxes, shipping charges and are subject to change without notice.
Product specifications are subject to change without notice.

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