Solar viewing accessories:

LuntSolarSystems - Calcium Blocking Filter Modul with B1200 - 2'' in extension tube with T2 and 2'' connection

Item condition: new and original packed

LUNT B1200d2 Blocking-Filter in 2 inch zenith mirror diagonal

Item condition: new and original packed

Lunt Blockfilter B400 in 2"-diagonal

Item condition: new, but not original packed

Coronado 1.25" Hot Mirror , 1.25" diagonal with red glas filter. The diagonal hot mirror is likely a dichroic mirror that acts just like a long-pass filter, reflecting a percentage of the Ha and transmitting/absorbing shorter wavelengths. it was delivered with Coronados BF 30 straight block filter

Item condition: new, but not original packed

EXPLORE SCIENTIFIC SUN CATCHER SOLAR FILTER FOR 150-160MM TELESCOPES Explore Scientific's Sun Catcher Variable Large Aperture Solar Filters are available in many sizes to work on most telescopes from 60mm up to 10-inch Schmidt-Cassegrain and of course all Bresser and Explore Scientific Telescopes. The Solar Filter material being used is the new advanced 'Solarlite' Film manufactured by world famous Thousand Oaks Optical through years of research and development. 'Solarlite' a new solar film that has the optical quality of glass with the advantages of impregnated polymer. Perfect also for the solar astrophotographer. NOTE: All Explore Scientific Solar Equipment is rated ISO12312-2 and CE-certified supplied by Thousand Oaks Optical and approved for direct observation of the Sun. SPEZIFICATIONS Special objective filter for safe solar observations CE-certified and ISO12312-2 rated Field-stop diameter 127mm Fits to outer telescope tube diameter from 150-280mm Quick individual match with your telescope diameter Fast Setup - Easy Use SCOPE OF DELIVERY Sun Catcher solar filter

Item condition: new and original packed

LUNT blue glass 20mm for B400 to B1800 blocking filter ; Spare part, cannot be used individually Only for blocking filters from Lunt Solar Systems Only for B400, B500, B600, B1200 and B1800 Not suitable for B3400

Item condition: new and original packed

Euro EMC visual Solar Filter - D= 96 mm, for 103-144 mm telescope tubes

Item condition: new and original packed

Solarfilter by Euro EMC Special Version for 12" Maksutov Newtonian by Matthias Wirth with Front Main Mirror Adjustment, ND5.0 Baader Astro Solar

Item condition: new and original packed

Wichtiger Hinweis zur Mehrwertsteuer:
Dieses Angebot unterliegt mit Ausnahme der Versandkosten gemäß § 25a UStG der Differenzbesteuerung, weshalb auf den angebotenen Artikel keine Umsatzsteuer erhoben und ausgewiesen wird.

Solarfilter SF100 from Euro EMC Size 3 (69 mm - 94 mm) to attach on your Telescope Complete series of lens-solarfilter to attach to the frontside of your telescope The filter foil is clamped plan between two aluminium rings For visual and photographic using Variable adjustable camping on the tube Delivery including filter foil type Astro Solar (Baader Planetarium) Made for all telescope types including viewfinder and binoculars except Schiefspieglers The scure fixation of the solar filter on the front end of tube or dewcap will be done with 4 threaded columns made from Polyamid with precisely adjustable clamping. The standard sizes will normally be attached outside on the dewcap, but you can also attach iit inside with a minimum of vignetting. The used filter foil has an excellent optical quality and is easily to change if damaged. The standard sizes 1 and 2 are cutted to enable the using with binoculars (you need 2 pieces). The objective distance than had to be minimum 65 mm or 78 mm. Delivery will be done completely assembled with the standard filter foil with a density of ND5 for visual and photographic use, the mounting pins are enclosed for self installation. For the focal Photography this density is perfect (e.g.: f/8, 100 ASA, t= 1/500). The solar filter will be mounted without any seal on the front side plan to the tube or dewcap. Contrary to possible concerns with this construction you won´t have any scattered light. The contrast only will be weakened if intentionally a gap of minimum 4 mm will be done! Delivery contains: Filter Frame 4 Mounting Pins Filter Foil

Item condition: new and original packed

TS-Optics 1,25" Solar Prism with Polarizing and Narrowband Filter

Item condition: new and original packed

APM/Lunt 1,25" Herschel wedge include ND 3.0 Filter

Item condition: new and original packed

The Altair 395nm NUV filter selectively passes light of the two main Calcium wavelengths emitted by the sun: CA-K line at 393.37nm, and the CA-H line at 396.85nm. A specially developed multilayer interference coating results in transmission of approximately 75% at 395nm NUV wavelength. Bandwidth is approximately 7nm (FHWM), resulting in extremely high contrast in the selected wavelength with efficient blocking of unwanted wavelengths. Remaining UV and IR light between 400-1100nm is blocked at OD3 0.1%, and visible light between 400-700nm at OD4 0.01%. Imaging the sun: The filter is to be placed in front of a high speed CMOS video camera for displaying detail in the upper solar atmosphere, at the boundary between the photosphere and the chromosphere. Structures which cannot normally be seen by the human eye or cameras are revealed, including fast-evolving Ellerman bombs (micro-flares) and Plages, (bright networks near sunspots). Solar granulation is also enhanced, as well as umbral detail around sunspots. Imaging the planet Venus: The planet Venus also benefits greatly from higher contrast in the upper cloud layers, showing features normally invisible in white light. The high transmission allows fast frame rates. IMPORTANT: The 395nm wavelength is harmful and almost invisible to the eye, therefore the NUV filter is intended for photographic use ONLY. A pre-filter of at least OD3.8 is required to reduce radiation damage to the filter. A Herschel Wedge, such as the Altair Imaging-Ready Solar Wedge can be used, or solar film, provided the manufacturers instructions are followed correctly. Refractors are usually employed for solar imaging, however reflectors can be used, provided they have a large blocking filter over the front aperture (usually solar film or glass filter because Hershel Wedges cannot be used with reflector telescopes). Imaging requires a monochrome CMOS camera. A typical example with false colour and selective contrast processing is shown opposite (HDR filter, Photoshop). Specification: NUV transmission band, CWL 395nm FWHM 7nm Filter substrate: 1.85mm thick BK7 optically polished glass with 30 arc sec parallelism UVIR blocking: UV and IR light between 400-1100nm is blocked at OD3 (0.1%) Visible light blocking: Visible light between 400-700nm at OD4 (0.01%) Scope of Delivery: Filter Specifications: Cell: Aluminium Type: Interference filter Filter thread / size: 1.25"

Item condition: new and original packed