Pentax 75 SDHF Refractor OTA

This super-portable 500mm telescope performs beautifully when used visually or photographically. Weighing only 4.8 lbs and measuring only 18.5" in length, the Pentax 75 SDHF can travel with you anywhere at a moment's notice.

The 3-element design of the Pentax 75 SDHF was created to produce excellent image quality whether the telescope is used as a spotting scope or camera lens during the day, or a visual astronomical instrument, guide scope, or imager at night! The third element is actually an integrated field flattener, which produces pin-point star images across the entire 6 x 4cm illuminated field of view. Special multi-coatings designed to increase the transmission of astronomical wave lengths are used on all Pentax APO telescopes.

The drawtube has an inside diameter of 59mm, and fully illuminates 6 X 4 formats with ease. The sturdy rack and pinion focuser is free of image shift, and focuses smoothly.

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Pentax 105 SDP Refractor OTA

This portable, well made telescope is crafted to extremely high standards, and performs beautifully when used visually or as a high quality astrograph.

The 4-element, 2-group design of the Pentax 105 SDP was created to produce excellent image quality over the entire field of view. The front element in the first doublet is made of SD glass, and the front element in the second doublet (third element in the system) is crafted of ED glass. This configuration yields images of excellent contrast and detail, with great color correction, even at high magnifications. Special multi-coatings designed to increase the transmission of astronomical wave lengths are used on all Pentax APO telescopes, and the integrated corrector yields a flatness of field that is sure to please the most discerning imager!

The drawtube has an inside diameter of 90mm, and fully illuminates 6 X 7 format with ease. The excellent focuser has 62mm of travel and is free of image shift.

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Pentax 100 SDUF II Refractor OTA

This super-portable, super-fast telescope performs beautifully when used visually or as an instrument for imaging. Weighing only 8.8 lbs (14 lbs with included aluminum case!) and measuring less than 20" in length, the Pentax 100 SDUF II can travel with you anywhere at a moment's notice.

The 4-element, 2-group design of the Pentax 100 SDUF II was created to produce excellent image quality over the entire field of view. The front element in the first doublet is made of SD glass, and a two-lens integrated corrector contributes to a flat field that is especially noticed (and appreciated!) when used photographically. This configuration, along with the addition of state-of-the-art internal baffling, yields images of excellent contrast and detail, with great color correction, even at high magnifications. Special multi-coatings designed to increase the transmission of astronomical wave lengths are used on all Pentax APO telescopes.

The drawtube has an inside diameter of 88mm, and fully illuminates 6 X 4.5 format with ease. The helical focuser includes a scale that allows precision focus to 0.02mm or better with a large knurled ring that fits the hand comfortably.

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Pentax 125 SDP Refractor OTA

This portable, well made telescope is crafted to extremely high standards, and performs beautifully when used visually or as a high quality astrograph.

The 4-element, 2-group design of the Pentax 125 SDP was created to produce excellent image quality over the entire field of view. The front element in the first doublet is made of SD glass, and the front element in the second doublet (third element in the system) is crafted of ED glass. This configuration, along with the addition of state-of-the-art internal baffling, yields images of excellent contrast and detail, with great color correction, even at high magnifications. Special multi-coatings designed to increase the transmission of astronomical wave lengths are used on all Pentax APO telescopes, and the integrated corrector yields a flatness of field that is sure to please the most discerning imager!

The drawtube has an inside diameter of 90mm, and fully illuminates 6 X 7 format with ease. The helical focuser includes a scale that allows precision focus to 0.01mm or better with a large knurled ring that fits the hand comfortably..

**SPECIAL ORDER**