• "TeleVue: A Historical Perspective" (lengthy so give it a minute or two to download - but it is worth the wait!).

• TeleVue 8mm Radian and Mars Experience using author's 8mm Radian eyepiece with the Televue 85 and Astro-Physics 155mm EDF Apochromat refractor telescopes to observe Mars. By Richard Orr.

• DIOPTRX Technical Notes An illustrated two page overview of the DIOPTRX provided as an Adobe .pdf file, April 2005 by TeleVue Optics (328,734 bytes).

• Understanding Your Eyeglass Prescription for Astigmatism An one page informative article describing visual astigmatism, particularly helpful in understanding the DIOPTRX Lenses. Provided as an Adobe .pdf file, April 2005 by Barry Santini of TeleVue Optics (27,634 bytes).

• "Report By Al" This is a brief description of this unique product by Al Nagler, followed by comments from the first persons who tried the DIOPTRX. June 2005 by Al Nagler, TeleVue Optics.

• Review of the TeleVue Nagler 3mm to 6mm Zoom (a newly introduced eyepiece P/N ENZ0306) used on the author's Televue 85 and Astro-Physics 155mm EDF Apochromat refractor telescopes. By Richard Orr.

• Review of the new Nagler 5mm and 7mm Nagler Type 6 eyepieces contrasted against their predecessors the 4.8 and 7mm Nagler. Comparison done on the author's 18" Obsession Dobson reflecting, Televue 85 and Astro-Physics 155mm EDF Apochromat refractor telescopes. By Richard Orr.

• Observing Report: Planet Mars, 12 Aug 2003 Observing report of Mars approaching Opposition of 2003 as observed through the author's Astro-Physics 155mm EDF f7 Apochromat and 60mm f15 Achromatic refracting telescopes. Discussion is helpful at pointing out the benefits of using color and specialized filters including the new TeleVue "Bandmate Mars A" and "Bandmate Mars B" filters. By Richard Orr.

• "The Perfect Telescope is...a small apochromatic refractor" A letter to the editor published some years ago in the "Amateur Telescope Making Journal" issue #10. The original letter is accompanied by a sketch showing an original TeleVue "Genesis" 4" refractor (introduced 1988) on a simple Panoramic head with wood wood tripod. The letter relates the authors long experience in the hobby, and his appreciation of a simple but capable telescope. Author Beat Kuechler was then 73 years old, living in New Jersey.

TELEVUE OPERATING MANUALS

• TeleVue Air Chair Assembly and Operating Guide, the one page guide by TeleVue explaining how to assemble and operate the pneumatic TeleVue Air Chair, if you did not pick it up assembled at Company Seven's showroom. Download is 449,925 bytes in Adobe .pdf format.

• TeleVue Genesis SDF and Renaissance SDF Telescopes Operating Guide, the illustrated seventeen (17) page guide by TeleVue explains their fourth generation 4-inch refracting telescopes, and how to configure these telescopes for use with the numerous visual and photographic accessories. The SDF series were TeleVue's first 4-inch apochromatic telescopes, produced from 1993 to 1996. This moderate-resolution scan by Company Seven is of the guide provided with a beautiful brass Renaissance SDF telescope exhibited at Company Seven's showroom. Download is 11,352,227 bytes in Adobe .pdf format.

• TeleVue NP127is Operating Guide, 2010 Model, the illustrated eleven (11) page guide by TeleVue explaining the 2010 Model NP127is telescope and how to configure it for use with the numerous Imaging System accessories. This includes advice about what adapter(s) are required to employ the telescope with various formats of digital and film cameras and of popular astronomical CCD imaging cameras. Download is 2,159,194 bytes in Adobe .pdf format.

• TeleVue NP127is Operating Guide, 2006 Model, the illustrated eleven (11) page guide by TeleVue explaining the 2006 Model NP127is telescope and how to configure it for use with the numerous Imaging System accessories. This includes advice about what adapter(s) are required to employ the telescope with various formats of digital and film cameras and of popular astronomical CCD imaging cameras. Download is 3,359,713 bytes in Adobe .pdf format.

TELEVUE SOFTWARE DOWNLOADS

• TVFocus_setup.exe software. Works with the TeleVue Imaging System Digital Indicator to provide local or remote display of focus position from your computer. Compatible with Microsoft Windows PC platforms (including Apple Macintosh Intel platforms running Windows). Executable software installer size is 2,993,176 bytes. Copyright TeleVue Optics, Inc.

• TVFocusPlusV1.1.0.exe software. Works with the TeleVue Focusmaster™ module, Focusmate Driver and Digital Indicator providing local or remote control of focus and display of focus position from your computer. Compatible with Microsoft Windows PC platforms (including Apple Macintosh Intel platforms running Windows). Executable software installer size is 2,998,272 bytes. Copyright TeleVue Optics, Inc.