Reference: ZWEAF-N

Brand: ZWO

Moteur de mise au point ZWO EAF V2

Review(s): 1
ZWO a l'art de proposer des équipements de qualité et pas cher. Si vous cherchez à faire votre mise au point en automatique ou par commande électrique, alors ce robofocus est fait pour vous!
€215.00
More
Généralement 1 - 4 semaines

Reference: POA-URANUS-C

Brand: Player One

Caméra Uranus-C (IMX585) Color - Player One

Review(s): 0
Uranus-C is (IMX585) camera developed by Player One Astronomy, which adopts the newest Sony IMX585 1/1.2” format color sensor. The 2.9um pixel size accommodates a well depth of 38.8Ke with a total of 8.3MP  (the resolution is 3856*2180), and the diagonal is 12.85mm.
€459.00
More
In Stock

Reference: ZWASI120MINI

Brand: ZWO

Caméra ZWO ASI120mini Monochrome

Review(s): 2
Une petite caméra idéale pour le guidage mais aussi pour l'imagerie planétaire. Cette version monochrome la rend plus sensible et détectera sans mal les étoiles même faibles.
€199.00
More
En Stock
All best sellers
  • Banner

Filter Optolong L-eXtreme - Serie
  • Filter Optolong L-eXtreme - Serie
  • Filter Optolong L-eXtreme - Serie
  • Filter Optolong L-eXtreme - Serie

Filter Optolong L-eXtreme - Serie

L-EXTREME-2
Optolong
Rating 

A perfect filter for color cameras that allows the imaging of nebulae in polluted environments.

Version
€299.00
Tax included
Quantity
Generaly in stock under | 3 to 10 days

  security

100% Secure Payment

  Delivery policy

Express shipping of in-stock parts

  RETURN POLICY

Express shipping of in-stock parts

Description

⚠️ Don't forget to select your filter version before putting it in your cart

L-eXtreme introduction

L-eXtreme is a two 7nm bandpass filter which can be used with one-shot color cameras like DSLR's (digital SLR), and monochrome CCD cameras, it is also more suited for fast systems. The convenience and cost effectiveness of this filter allows amateurs to image a rich emission nebulas, even in bright, light pollution skies. Optolong believes the design of L-eXtreme filter would be better choice for fast systems in competitive price. It isolates the H-Alpha, and Oxygen III nebula emission lines so that the contrast and signal-to-noise ratio between nebulae were maximized. For people who is living in very light polluted areas, or when the moon is out, the L-eXtreme will be a good filter.


Unlike the Optolong L-eNhance filter which is a tri-band (transmits Hb, Ha, and OIII), the L-eXtreme filter is dual band that passes Ha and OIII emission lines.The advantage of the L-eXtreme filter is that there is no transmission between the H-beta and OIII lines, as there is no nebula emission lines there. In this case, it isn't letting light pollution come through so that maximize nebulas signal and make the sky background darker while imaging. The L-eXtreme filter should better isolate the emission lines only and better protect from light pollution.


Hydrogen is the largest, the most primitive, the simplest, and the oldest element in the universe. Scientists consider that Hydrogen amounts to more than 90% of visible substance in space. Our sun is 5 billion years old, but so far hydrogen is still the key matter of nuclear fusion. While the sulfur element does not have much scientific significance, so keeping H and O is meaning for exploration of life.
Therefore, we highlight H-a, H-b, O3 and O2, and reduce the signal of sulfur.
 

Spectrum and Characteristic

  • Sbustrate: B270
  • Thickness: 1.85mm
  • Tpeak:  T>90%
  • Blocking range: 300-1000nm
  • Blcoking depth: light pollution  line blocking >99%
  • Surface quality: 60/40
  • Transmitted Wavefront RMS: λ/4
  • Parallelism: 30s
Product Details
L-EXTREME-2

Data sheet

Connexion
1.25"
2"
Type
Version Vissé
Reviews
Grade 
Thierry V
2021-11-21

Parfait !

Filtre reçu dans les temps et très bien emballé, merci.

Write your review

Filter Optolong L-eXtreme - Serie

Filter Optolong L-eXtreme - Serie

A perfect filter for color cameras that allows the imaging of nebulae in polluted environments.

Write your review
16 other products in the same category:

Reference: SII-1

Brand: Optolong

Filter SII 6.5nm Serie - OPTOLONG

Review(s): 0
6.5nm Optolong SII Filter This filter is a 6.5 nm SII filter designed for observing nebulae with a wavelength centered at 672 nm and reduces the transmission of certain wavelengths of light.
€149.00
More
Généralement 2 - 3 semaines

Reference: OIII-1

Brand: Optolong

Filter OIII 6.5nm Serie - OPTOLONG

Review(s): 0
Optolong OIII 6.5nm filterThis filter is an additional 6.5 nm narrowband OIII filter designed for observing nebulae with a wavelength centered at 500 nm and reduces the transmission of certain wavelengths of light.
€149.00
More
Généralement 2 - 3 semaines

Reference: NX69613

Brand: IDAS

Filter NBZ 2" - IDAS

Review(s): 0
new IDAS NBZ Nebula filter is a dual narrowband filter for H-Alpha and OIII regions.
€409.00
More
Generaly in stock under | 3 to 10 days

Reference: ANOIII3-125

Brand: ANTLIA

Filter OIII 3nm Serie Pro - Antlia

Review(s): 0
OIII Pro 3NM filter can be used in areas with a lot of light pollution to obtain a very contrasting image and perfectly centered in the wavelength of 500.7 nmm
€399.00
More
Generaly in stock under | 3 to 10 days
You might also like

Follow us on Facebook