{"product_id":"shelyak-lisa-spectroscope-pf0021","title":"Shelyak LISA Spectroscope (PF0021)","description":"\u003ch2\u003eShelyak LISA Spectroscope\u003c\/h2\u003e\u003cp\u003eThe LISA is the most sensitive instrument in our product range. Thanks to its internal reducer and low resolution, it is the undisputed master of faint objects such as novae \u0026amp; supernovae, planetary nebulae, comets, symbiotic stars, cataclysmic variables, galaxies…\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eA high-luminosity instrument\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe LISA spectroscope is dedicated to the spectroscopy of faint objects such as comets, novae, supernovae, faint variable stars, the redshift of distant galaxies or quasars, or the confirmation of planetary nebulae. Its optical design has been specially studied for the observation of this type of object, with custom-made optics. Its calibration module (optional) enables easy calibration using an Argon\/neon lamp, providing a large number of emission lines over the entire LISA spectral range. The same module is equipped with a tungsten lamp for flats.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eA wide spectral range\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWith a resolving power of R = 1,000 with a 23 µm slit, its spectral range covers the entire visible range between 400 and 700 nm, and even extends into the near UV and near IR.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/BD59-2829-SpectreBrut.jpg\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eExample of a raw spectrum on BD+59 2829, a Be star of magnitude V=9.9 obtained with a LISA\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAperture\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe LISA’s F\/5 aperture makes it particularly well suited to faint objects, and it can be installed on telescopes or scopes natively f\/5, but also on any type of Schmidt Cassegrain or Ritchey Chretien telescope using a focal reducer to bring the native focal length of this type of telescope, generally f\/10 or f\/8, down to a focal length close to 5.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGuiding system\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThanks to its mirror slit, the Lisa accurately positions and holds the target in the slit. A guiding camera (not supplied) enables the telescope’s movements to be controlled (autoguiding), ensuring optimum observation.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/ChampFente2E3934-1-1.jpg\"\u003e\u003c\/p\u003e\u003ch2\u003e\u003cem\u003eField of the LISA autoguider with the slit positioned vertically, on a Seyfert galaxy\u003c\/em\u003e\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eInterchangeable slit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe interchangeable slit supplied as standard (15-19-23-35µm) makes it possible to adapt the instrument to any observational situation, giving priority to resolution or brightness if required. Other slits are also available as options (\u003ca href=\"https:\/\/www.shelyak.com\/produit\/se0122-fentes-19-50-75-100\/\" target=\"null\" title=\"null\"\u003ewide slits\u003c\/a\u003e, \u003ca href=\"https:\/\/www.shelyak.com\/produit\/se0194a-fente-photometrique\/\" target=\"null\" title=\"null\"\u003ephotometric slits\u003c\/a\u003e), to further extend the possibilities.\u003cimg src=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/FentesLISA-300x183.png\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMechanical interfaces\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe LISA is supplied as standard with a 2″ nosepiece. The nosepiece can be removed to access an T-mount female thread (M42x0.75mm thread). For mounting on a classic Schmidt-Cassegrain telescope (2″ external thread), you’ll need the \u003ca href=\"https:\/\/www.shelyak.com\/produit\/ba0027-adaptateur-t-variable\/?lang=en\" target=\"_blank\" title=\"null\"\u003eBA0027 variable T-adapter\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eThe interface with the acquisition camera is also a T-mount thread (M42x0.75mm) with a 54.9 mm backfocus, while the guiding camera port is C-mount with a 17.5 mm backfocus.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/LISA.jpg\"\u003e\u003c\/p\u003e\u003cp\u003eFor \u003ca href=\"https:\/\/www.shelyak.com\/produit\/se0176-atik-414ex-mono\/?lang=en\" target=\"null\" title=\"null\"\u003eATIK cameras\u003c\/a\u003e, you need a 13mm long ring (13mm mechanical backfocus), supplied with the LISA. We offer a wide choice of adapter rings in our \u003ca href=\"https:\/\/www.shelyak.com\/categorie-produit\/accessoires\/bagues-fentes\/\" target=\"null\" title=\"null\"\u003eaccessories catalog.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCalculating the redshift of distant galaxies and quasars\u003c\/li\u003e\n\u003cli\u003eConfirmation of Planetary Nebula candidates\u003c\/li\u003e\n\u003cli\u003eSpectra of faint Be stars\u003c\/li\u003e\n\u003cli\u003eStudies of star spectral classes\u003c\/li\u003e\n\u003cli\u003eSpectra of faint objects (Novae, Supernovae, Comets)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications \u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCollimator F=130mm F\/5\u003c\/li\u003e\n\u003cli\u003eHigh efficiency thanks to internal focus reducer\u003c\/li\u003e\n\u003cli\u003eResolution power R ~1000 with a 23 µm slit\u003c\/li\u003e\n\u003cli\u003eGrating 300 tr\/mm blazed à 500nm\u003c\/li\u003e\n\u003cli\u003eVisible domain (400-700nm)\u003c\/li\u003e\n\u003cli\u003eSlit 15\/19\/23\/35µm\u003c\/li\u003e\n\u003cli\u003eSlit length : 4 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 1.4 kg (w\/o caméra)\u003c\/li\u003e\n\u003cli\u003eTelescope Interface \u003ca href=\"https:\/\/www.shelyak.com\/description-lens-mount\/?lang=en\" target=\"null\" title=\"null\"\u003eT-mount\u003c\/a\u003e (M42*0.75), backfocus 41mm\u003c\/li\u003e\n\u003cli\u003eScience camera interface, \u003ca href=\"https:\/\/www.shelyak.com\/description-lens-mount\/?lang=en\" target=\"null\" title=\"null\"\u003eT mount, M42*0.75\u003c\/a\u003e, backfocus 54.9 mm\u003c\/li\u003e\n\u003cli\u003eGuiding camera interface, \u003ca href=\"https:\/\/www.shelyak.com\/description-lens-mount\/?lang=en\" target=\"null\" title=\"null\"\u003eC-mount\u003c\/a\u003e, backfocus 17.5 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIn the Box\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLISA Spectroscope\u003c\/li\u003e\n\u003cli\u003eInterchangeable slit : 15, 19, 23, 35μm\u003c\/li\u003e\n\u003cli\u003eAdapter for 13mm backfocus camera\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.shelyak.com\/software\/demetra\/?lang=en\" target=\"null\" title=\"null\"\u003eDemetra Software\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/DC0012A-LISA-User-Guide-En.pdf\" target=\"_blank\" title=\"null\"\u003eUser manual\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.shelyak.com\/wp-content\/uploads\/PF0021C-LISA-Dimensions.pdf\" target=\"_blank\" title=\"null\"\u003eDimensions\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=SxX87DDX3Uo\" target=\"_blank\" title=\"null\"\u003eLive observations with a LISA\u003c\/a\u003e (online workshop)\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eShelyak 1-Year Warranty\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Shelyak","offers":[{"title":"Default Title","offer_id":44570303135973,"sku":"SHE-PF0021","price":7393.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/shelyak-lisa-spectroscope-pf0021-astronomy-plus.png?v=1715808304","url":"https:\/\/istronomyplus.com\/products\/shelyak-lisa-spectroscope-pf0021","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}