Secondhand & Stock

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

Item condition: new and original packed

Coronado 60 mm Tilter Adapter, either to tune a Coronado SM 60 as a double stack filter, or to adjust a SM 60 filter in front of your own telescope

Item condition: new, but not 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.

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

Item condition: new and original packed

EXPLORE SCIENTIFIC OPTOLONG 2'' L-eXtreme Deep-Sky Light Pollution Filter L-eXtreme Filter for deep sky nebula photography from the city The relentless spread or urbanization and its associated light pollution have become a growing problem for all amateur astro photographers. The current solutions to the problem can be expensive and might include the purchase of a monochrome camera, several types of narrowband filters and a filter wheel. Especially with inexpensive but fast newtonian telescopes, double-lens ED refractors or even achromats, the L-eXtreme filters open up completely new possibilities for high-class astronomical images even from the light polluted city. CMOS cameras can deliver images like monochrome cameras. This new generation of filters makes it possible to take amazing astrophotos directly from the heavily light-polluted city with all its artificial light sources. The dual narrow bandpass for the wavelengths of O-III and H-Alpha and the almost complete attenuation of the interfering light sources of these new filters make this an ideal solution. L-eXtreme Description L-eXtreme is a two 7nm narrow bandpass filter which can be used with one-shot color cameras like DSLRs (digital SLR), color CMOS and monochrome CCD cameras. The convenience and cost-effectiveness of this filter allows amateurs to photograph rich emission nebulas, even in bright, heavily light-polluted skies. The L-eXtreme filter is the better choice for fast optical systems at a competitive price. It isolates the H-Alpha and Oxygen III nebula emission lines so that the contrast and signal-to-noise ratio between nebulae are maximized. The design of our L-eNhance filter is a technical innovation among filters. For people who live in heavily light-polluted areas or when the moon is out, the L-eXtreme is a very good choice. Main Use and Performance This new generation of filters makes it possible to take amazing astrophotos directly from the light-polluted city with all its artificial light sources. The narrow bandpass for the wavelengths of O-III and H-Alpha and the almost complete attenuation of the interfering light sources do not require very large or extremely expensive telescopes. No, especially with inexpensive but fast newtonian telescopes, double-lens ED refractors or even achromats, these filters open up completely new possibilities for high-class astronomical images. Furthermore, with these filters CMOS colour cameras can deliver an image quality that comes close to CCD monochrome cameras. WARNING: These nebula filters are not designed for sun observation. DO NOT LOOK AT THE SUN WITH THIS FILTER. You will go BLIND if you ignore this warning. Coating technology L-eXtreme has a multiple anti-reflective coating on the optical substrate. The L-eXtreme filter uses a precision coating based on ion deposition coating technology. This ensures durability and scratch resistance as well as stability on the CWL (central wavelength), which is not affected by temperature changes. Absolute precision and homogeneity of the coatings as well as maximum values for transmission in the passband and optical density in the off-band range are guaranteed for all filters. FEATURES Professional photographic filter for astronomy Improves deep sky emission nebula photography Best choice for extreme light pollution suppression For taking pictures also from highly light-polluted areas Dual-narrow-band filter with high transmission for O-III and H-Alpha lines Does not require very large or extremely expensive telescopes Excellent results also with fast inexpensive newtonian telescopes, double-lens ED refractors or even achromats L-eXtreme filter is the better choice for fast systems at a competitive price CMOS colour cameras can deliver an image quality that comes close to CCD monochrome cameras Filter diameter: 2" Connecting thread: M48x0.75mm Selected optical glass material Spectrum: 300-1000nm Off-Band Blocking: > 99 % Surface Quality: 60/40 (Refer to MIL-O-13830) Fine-optically polished to ensure accurate 1/4 wavefront and highest parallelism over the both surfaces High transmission at major nebula emission lines (i.e. H-alpha 656nm and OIII 496nm&500nm) SCOPE OF DELIVERY L-eXtreme filter (1 pc) Dust protection box (1 pc)

Item condition: new, but not original packed

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

Item condition: new and original packed

LUNT LS60THa / B1200C H-Alpha Solar Telescope, used

APM Ceramic Safety 2" Herschelprism with APM Fast-Lock Eyepiece Adapter.For solar white light imaging and white light visual observing. The APM White Light Wedge comes with a built in ND3 filter which allows perfectly safe imaging or visual observing of the Sun. The APM Herschel prism is equipped with the ceramic light trap, an multicoated integrated multicoated ND3 filter and (removable) multicoated polarizing filter. The sun can be safely observed with the APM Herschel Prism.The image brightness can be adjusted by twisting of the 2 "polarizing filter by rotating the 2" eyepieceholder from outside . Thus, the Herschel Prism can be used both visually and also photographically same good!

Item condition: new and original packed

Baader 1.25" Neutral Density Filter - Gray Filter ND3.0 - Attenuation 1000x

Item condition: new and original packed

Baader Narrowband OIII 1.25" Filter

Item condition: new, but not original packed

Celestron Blocking Filters Skyris IR-Cut Filter 1,25"

Item condition: new and original packed

Celestron Mars Observing Telescope Accessory Kit; The perfect mars accessory bundle for any telescope that accepts 1.25" eyepieces Includes three colored Filters to enhance specific surface details on mars such as maria, deserts, and Polar Ice Caps 2x power doubling Lens doubles the power of any 1.25" telescope eyepiece Doubling Lens Also features built-in t-threads to attach a DSLR camera (t-ring not included) All pieces in the Kit can Also be Used to view Jupiter, Saturn, the Moon and many other Astronomical objects



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.