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31.8mm (1¼") - FILTRI DEEPSKY: UHC-S, L-RGB-C, H-ALPHA (7 / 35nm) SII (ZOLFO), OIII (VISUALE E CCD), H-BETA, F2 HIGHSPEED, ULTRA-NARROWBAND - BAADER PLANETARIUM
31.8mm (1¼") - FILTRI DEEPSKY: UHC-S, L-RGB-C, H-ALPHA (7 / 35nm) SII (ZOLFO), OIII (VISUALE E CCD), H-BETA, F2 HIGHSPEED, ULTRA-NARROWBAND - BAADER PLANETARIUM |
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Baader Planetarium - BP2459393
Baader Filtro f/2 Highspeed H-alpha da 31.8mm, LPFC
Baader f/2 Highspeed-Filter H-alpha 1¼", LPFC-mounted |
EUR 205,00
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EUR 168,03 + local tax VAT 22%. Only for EU customer
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Acquista a rate per un ordine di almeno EUR 600 ! (only for Italy)
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not EU customer |
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New f/2 Highspeed Narrowband Filters- und Filtersets (1 ¼" und 2", H-alpha / O III / S II) are designed especially for the delicate requirements of extremely fast astrograph optics, in particular Hyperstar and RASA. Conventional narrowband filters cause a heavy loss in transmission due to the strong CWL-shift. In extreme cases the CWL even does shift out of the FWHM (CWL= Center-wavelength / FWHM= full width half maximum).
Therefore these filters have a CWL-preshift which matches f/2 to f/3 perfectly. Also the FWHM is optimized. In spite of the typical line broadening with such fast optical trains they are able to deliver maximum contrast. For the first time these filters allow to use fast optics really effectively with high contrast emission nebulae imaging. Using these filters between f/1,8 and f/3,5 shows a dramatic improvement compared to any regular set of narrowband-filters.
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Caratteristiche Tecniche / Specifications |
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UNITRONITALIA Instruments S.r.l. Via G.B.Gandino, 37/39/41 - 00167 ROMA - Italy - Tel. 06 39738149 - Fax. 06 39760014 - email: contact@unitronitalia.com
Orario ufficio da Martedi a Sabato: 10:00-13:00 / 14:30-19:30 Orario apertura al pubblico da Martedi a Venerdi 14:30 / 19:30 Sabato 10:00-13:00 / 14:30-19:30 email: shop@unitronitalia.com
RI ROMA/2010 C.S. 60000 i.v. - VAT/P.IVA IT 10878271005 REA 1261155
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E' vietato copiare immagini e contenuti dei testi senza il consenso scritto della UnitronItalia Instruments Srl.

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