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Optolong L-eXtreme F2 Highspeed Dual-Band Filter

£299.00
(Inc. 20% VAT)
Loyalty Points: 299
Low stock, Shipped in 1-2 working days
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Product Code
OPT-L-eXtr-f2-2
Brand
Email us a question about this ProductOptolong
Description

Optolong L-eXtreme F2 Highspeed Dual-Band Filter (Ha and OIII)

Optolong L-eXtreme F2 is a dual-band (500.7 nm and 656.28 nm, FWHM=7 nm) narrowband pass filter that meets the requirements for transmission at continuously varying angles. Astronomically characterised spectral lines (OIII, Ha) as the main transmission wavelengths, the OIII and H-Alpha nebula emission lines pass accurately at f2 - f3.3 Focal Ratio.   It's a product that Optolong has developed specifically for fast optical systems, or fast focal ratio imaging systems. It has performed well on RASA, HyperStar and other fast ratio telescopes.

Key Features:

  • Together with one-shot colour astronomical cameras, monochrome astronomical cameras, and Digital SLR cameras, you can fast and quickly obtain clear and detailed images of the deep sky;
  • Ideal for fast optical system, like RASA, Hyperstar and other fast focal ratio telescope users;
  • Recommended for using fast optical system with focal ratio from f2 to f3.3;
  • Anti-light pollution, better contrast, more details of the celestial bodies: This filter cuts out background light and noise beyond the target celestial bodies to get better details and contrast of the images. L-eXtreme F2 can effectively block light pollution so that the images will not affected by unwanted lights, and sky light of the background. You can quickly get satisfactory pictures in fast optical systems.

Based on the characteristics of celestial bodies’ emission lines and light pollution emission lines, the L-eXtreme F2 retains the prominent nebula OIII and Ha colours while blocking most of the light pollution. Specifically designed and optimally calculated for the characteristics of a fast optical system, the L-eXtreme F2 always keeps both OIII and Ha bands having high transmittance, which helps users to capture nebulae emission lines in these bands more accurately and quickly, and obtain better astrophotographic images. 

Specifications

Specifications: Optolong L-eXtreme F2 Highspeed Dual-Band Filter

What's in the Box

What's in the Box: Optolong L-eXtreme F2 Highspeed Dual-Band Filter

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Delivery

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For delivery within Mainland UK, we use reputable couriers to provide efficient service. You can expect your package to arrive in 1-2 working days. Please note that a signature may be required upon delivery to ensure a secure receipt.

In the case of special order items, the delivery time may be longer. If you have any concerns or questions about the delivery of your item, please don't hesitate to Contact Us. We are here to assist you.

Should there be any delay in dispatching your order, we will notify you to keep you informed.

Please be aware that The Widescreen Centre cannot be held responsible for any postal or third-party delays that may occur. We are committed to providing a reliable and efficient delivery service for our valued customers.

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