Home :: OPTICAL ACCESSORIES :: Filters :: Solar Filters :: Solar Filter for 120mm to 148mm Telescope Tube Size with Aluminium Housing

Solar Filter for 120mm to 148mm Telescope Tube Size with Aluminium Housing

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in In stock (10)
Model
SF160ALU
Weight
0.45 kg
Our price:
$42.08
Qty

D6A5

Observing the Sun is now more affordable than ever!

These filters are designed to work with  the Skywatcher Skymax-127, Celestron NexStar 127 SLT and similarly sized telescopes as the three teflon tipped thumbscrews give a certain level of flexibility and allows use of this solar filter on telescopes with outer tube diameter between appr. 120mm to 148mm.

Theoretically, the teflon tips could be cut shorter, allowing use with a telescope tube outer diamter of up to about 152mm.

The outer diameter of the Skymax 127 is 145mm, that's why this filter will fit this telescope nicely.
 

SPECIFICATIONS

Compatibility: 120mm to 148mm telescope tube outer diameter
Outer Diameter: 160mm

Internal Diameter: 154mm
Clear Aperture: 135mm
 

These Solar Filters are made with Baader Astro Solar™ Safety Film. Far superior than any existing glass, Mylar or polymer filters, they lead to sharper, brighter and images of higher contrast.

Enter the new millennium with the finest solar filters available. Astro Solar™ Safety Film is clear and homogenous and attains the optical performance of high quality plane-parallel glass filters—it is diffraction limited! Double-sided metal coatings have uniform density and good color balance across the entire field ensuring razor sharp images from edge to edge.

The Sun appears in its “real ”color —neutral white, not blue or orange ,and the sky adjacent to the solar limb is jet black.

You can see detail in sunspots, bright faculae near the limb and the mottled areas known as granules with these filters. The Sun offers constant changes and will keep your observing interesting and fun. Even small aperture telescopes can enjoy features of the Sun.

According to customer feedback and various reviews, the views through this filter can be further improved by adding either a green colour filter or a Baader Solar Continuum filter. The latter must be accompanied by a UV/IR cut-off filter for best results.

Basically, the best combination for white light solar observations is the Baader Astro Solar Safety film (used in this filter) plus Baader Solar Continuum filter plus Baader UV/IR Cut-off filter. Although I should mention that we cannot really call it anymore white lite solar observation as you will see a greenish image of the sun.

The Astro Solar™ film is completely safe and durable (won‘t break like glass if dropped). Its rating is ND-5 which means that the film transmits 1/100,000 of visible light (.001%) while reflecting (blocking) 99.999%of unwanted light. The film absorbs all ultraviolet rays while coating reflects infrared light rendering both absolutely harmless. For added assurance, Baader Astro Solar™ film has been declared safe for direct solar viewing by the German National Bureau of Standards for eye safety.

Mounted in a durable ABS or rubber cell that won‘t break.

 

SAFETY ANNOUNCEMENT
Please take maximum care when observing the Sun by using this type of solar filter. Check the surface before each observation and do not use it if it is damaged (e.g. punctures). Please make sure that the screws hold the filter safely and securely and a wind would not blow away the filter. This is especially important if you have children around who might occasionally kick off the filter by mistake or clumsiness...!
We cannot take responsibility if any of the above occurs as we cannot control your environment; please use it at your own risk!

 

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