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All New Slide-base UniGuide 32mm GuideScope, red color

Item condition: new, but not original packed

Product description Berlebach Moduleinsatz 4 FOR TRIPODS REPORT The module insert 4 unites the modules 2 and 3, because here a centre column is integrated in a levelling ball. Here too the 50 cm long centre column with diameter 25 mm/1 in is made of precision wrought light-metal tubing, so that a comfortable height adjustment is possible. The columns are introduced accurately fitting into the tripods, in order to keep the tolerances as low as possible. The module insert 4 as also available with a firmly fixed rotating panorama plate, having the module designation 4/P.

Item condition: new, but not original packed

With the focuser of your telescope, you can compensate for your short- or long-sightedness. DIOPTRX compensates for your astigmatism.

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

APM 2 inch star diagonal mirror with 99% di-electric coating with fast-lock

Item condition: new and original packed

60mm guidescope

Item condition: new and original packed

TS 1,25" Premium Barlow Lens - 5x magification - 4-element

Item condition: new and original packed

EXPLORE SCIENTIFIC 82° Ar Okular 14mm (1,25")

Item condition: new and original packed

EXPLORE SCIENTIFIC 82° LER Eyepiece 4,5mm Ar

Item condition: new and original packed

The Altair 2" Solar Continuum filter Enhances sunspots, granulation, and fine photosphere detail. For use with Baader Solar Filter or Herschel Wedge. IMPORTANT SAFETY INFORMATION: DO NOT USE THIS FILTER FOR DIRECT SOLAR OBSERVATION! Must be used together with a professional solar filter or Hershel Wedge with Max. 0.024% transmission placed BEFORE this filter. For reflecting telescopes, we recommend Baader solarfilm on the front of the telescope, then screw the filter into a filter holder, camera, or eyepiece. For refractors, the filter should be positioned just in front of the camera or eyepiece with a Hershel Wedge in place. Do not use this filter without a suitable solar pre-filter in place, because it will permanently damage your eyes or camera! The Solar Contrast Booster works by filtering out UV, IR and visual wavelengths except for a narrow 8nm FHWM green band at 540nm. This greatly increases the contrast of solar features when viewed with the naked eye, colour or mono camera, revealing more detail around sunspots and granulation (fast-developing solar convection cells) in the solar photosphere. Highly recommended for use with either Altair Imaging-Ready APM Hershel Wedge or Baader Solar Film. NOTE: Do not insert the filter before your Hershel Prism or it will melt, it should be placed just in front of the camera, and it should be screwed directly into your camera 2" nosepiece by means of the M48x0.75mm thread, E.g. Hypercam 2" nosepiece or use an Altair Magnetic Filter holder with 2" filter slider (Search product code starting with "MAGF" and choose the correct threads for your camera). Why is transmission centred on 540nm wavelength? 540nm is a very desirable wavelength for imaging and observing the sun. The Solar Contrast Booster filter improves performance of any telescope optics such as Refractors, Newtonian reflectors, Maksutovs, Dall Kirkhams, Cassegrains, and SCT's. It's especially recommended with Frauenhofer Achromatic refractors and short focal length ED Doublets, because their optimum performance peaks in this green wavelength by design. In fact, not only Achromats, but most ED triplet and APO refractors traditionally have peak performance at 540nm wavelength, where the human eye shows best sensitivity. 530-540nm is not only the traditional "design benchmark wavelength" for most telescope optics, and also that of most high end interferometry equipment used to configure and optimise telescope lenses. Most colour and mono CMOS cameras also have peak sensitivity and resolution in green! Colour CMOS cameras in particular have an RGGB pixel layout with two green pixels for every one blue and red pixel, for an obvious increase in resolution. The are therefore many benefits in isolating this wavelength to capture those fleeting moments of good seeing. Altair Solar Contrast Booster filter specifications: Standard 2" Filter Thread Aluminium Cell Band CWL540nm 90% transmission FWHM 8nm 1.85mm thick optical glass λ/4, Parallelism (arcsec) 30" Si02 "hard" overcoat with UVIR Block 300-1100nm and Anti-Reflection Coating Scope of Delivery: Solar Contrast Booster Filter 2"

Item condition: new and original packed

Crayford 3" focuser with 1:10 reduction, 360° rotation. With connection adapter with 108mm threaded connection.

Item condition: new, but not original packed

With the focuser of your telescope, you can compensate for your short- or long-sightedness. DIOPTRX compensates for your astigmatism.

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

APM Viewfinder 80 mm 90° correct Image

Item condition: new and original packed