141 results for "Takahashi telescope" between $100.00 and $15,000.00

Dall-Kirkham Telescope combines refractor-like performance in a larger folded optic reflector design. The Takahashi Mewlon 210 at prime focus provides a focal length of 2415mm, focal ratio of f/11.5 and image circle of 18mm. Primary mirror diameter measures 220mm (f/2.9) with a secondary mirror amplification of 65mm (4X) and secondary obstruction of 0.32 (31%). The Takahashi Mewlon 210 measures 700 mm long, 244 mm in diameter and weighs 17.6 lbs. (8kg). It offers a limiting visual magnitude of...

Dall-Kirkham Telescope combines refractor-like performance in a larger folded optic reflector design. The Takahashi Mewlon 300 at prime focus provides a focal length of 3572mm, focal ratio of f/11.9 and image circle of 25mm. Primary mirror diameter measures 310mm (f/3) with a secondary mirror amplification of 95mm (4X) and secondary obstruction of 0.32 (29%). The Takahashi Mewlon 300 measures 1094 mm long, 324 mm in diameter and weighs 57.2 lbs. (26kg). It offers a limiting visual magnitude of...

Internal knife-edge baffles for absolute maximum contrast. The Takahashi FS-60C incorporates a front element calcium fluorite crystal lens. Rear element crafted from hard multi-coated low dispersion flint glass. The Takahashi FS-60C offers 60mm aperture at f/5.9 - perfect for astrophotography, eclipses, birding, travel, etc. Superb apochromatic color correction in a fast focal ratio air-spaced doublet optical system!. Five Year Manufacturer Warranty.

Ortho-Apochromatic Triplet Lens incorporates an FPL-53 Extra-low Dispersion glass element sandwiched between two crown glass to eliminate chromatic aberration. The Takahashi TOA-130NFB Refractor Telescope provides 1000mm focal length and an f/7.7 focal ratio, which provides a 92mm image circle and a photographic field of 5.3 degrees for unvignetted imaging. For superior light transmission and excellent contrast, all surfaces are fully multi-coated with multiple layers of antireflection materials...

Hyperbolic Flat-Field Astrograph design offers up and amazingly fast effective focal ratio of f/2.8! The Takahashi Epsilon 180ED catadioptric extra low dispersion optics provide high quality images for visual observation and large field imaging needs. Wide, perfectly flat field supports traditional photographic formats as 24x36 (35mm), 6x6, 6x9 and works perfectly with mega pixel digital 35mm cameras and CCD imagers. The Takahashi Epsilon 180ED newly designed corrector provides incomparable contrast...

The Takahashi Super Reducer 645 reduces the focal length on a TOA-150 from 1100mm to 840mm while speeding up the optics from f/7.33 to f/5.6. However, it also introduces a considerable amount of field curvature on the TOA-150. Stars around the edges of images are noticeably stretched towards the center of the frame. Stars in the center will be nice and round.

Takahashi TSA 120 APO Triplet Refractor Telescope OTA TSA0120 The Takahashi TSA 120 APO Triplet Refractor Telescope has superior quality optics and is extremely portable. The TSA 120 APO by Takahashi has a focal length of 900mm (f/7.5). The TSA 120 APO by Takahashi has a tube diameter of 125mm. Takahashi TSA 120 APO has an Ortho-Apochromatic Triplet Lens that incorporates FPL-53 Extra-Low Dispersion. The tube length on the TSA 120 APO is approximately 28.25" when collapsed and weighs 12.6 pounds...

The Stellarvue R50TAK Finderscope Rings are designed for Takahashi telescopes and mounts to the standard Takahashi base with two holes 28mm apart. Internal ring diameter is 2-11/16". Stellarvue R50TAK Dual Ring Finderscope Mount accommodates 50-60mm Stellarvue finderscopes or other finders with the appropriate diameter. Quick release dovetail base.

Takahashi FSQ 106ED Astrograph Telescope OTA FSQ1016NU The Takahashi FSQ 106ED Astrograph Telescope is one of the finest refractors available on the market today for film and CCD imaging. The FSQ 106ED by Takahashi has a back focus of 178mm to accommodate most CCD systems. Takahashi FSQ 106ED has a heavy-duty 4" focuser with a built in camera angle adjuster. The optical system in the Takahashi FSQ 106ED has been redesigned to a four element double ED Petzval System. Full 5 Year Manufacturer Warranty...

Aperture: 250mm. Central Obstruction: 58%. Focal length: 1247mm. Focal ratio: f/5.0. Optical performance: 2 microns RMS-spot radius on axis 3 microns RMS-spot radius 10mm off-axis 3 microns RMS-spot radius 20mm off-axis 4 microns RMS-spot radius 30mm off-axis 6 microns RMS-spot radius 40mm off-axis. Image circle: 88mm diameter (60% illuminated). Image angular: 4 degrees diameter. Back focus/metal back 155.4mm 193.9mm with CAA removed.

Versatility is that word that best describes the FS-60Q modular telescope. Converts from an f/10 600mm focal length instrument to an f/5.9 354mm wide field instrument that can be used to image at f/6.2 using the dedicated flattener or to f/4.2 with the dedicated reducer. Both devices providing a 44mm image circle which will cover an APS size chip oe used at f/10 with a 44mm flat field 95% illuminated to narrow field imaging; or extended with the Extender-Q to960mm for lunar, nature of eclipse imaging...

Image Circle with Optional Reducer: 1.7" (44mm) - light intensity 60%. Image Circle with Optional Extender: 1.7" (44mm) - light intensity 60%. Focal Length with Optional Reducer: 15.2'" (385mm). Focal Length with Optional Extender: 33.5" (850mm). F Ratio with Optional Extender: 8. F Ratio with Optional Reducer: 3.6. Light Gathering Power: 229X, Limiting Mag is 11.9, Resolution: 1.09" (28mm). Effective Aperture: 4.2" (106mm) - Focal Length: 21" (530mm).

Aperture: 130mm. Focal Length: 1000mm. Focal ratio: f/7.7. Focal length with flattener: 999mm. Focal ratio with flattener: f/7.68. Image circle: 92mm. Photographic field: 5.3 degree. Focal length with reducer: 754mm. Focal ratio with reducer: f/5.8. Image circle: 52mm, 25mm. Photographic field: 3.8 degree. Finder scope: 7x50 6.3 degree. Focuser: 2.7". Backfocus from end of OTA: 258mm. Diameter of main tube: 155mm. Length of tube w/adapters removed: 812mm (32"). Diameter of dew shield...

The Takahashi TOA-150B features a new 4" focuser that uses a long stroke linear bearing designed to support a heavy instrument package. The focuser uses a trigger lock focus lock and new pinion assembly. The Ortho-Apochromatic Triplet Lens of the TOA-150B incorporates an FPL-53 Extra-low Dispersion glass element sandwiched between two crown glass to eliminate chromatic aberration. The Takahashi TOA-150B Refractor Telescope provides 1100mm focal length and an f/7.33 focal ratio, which can provide...

The Takahashi TSA0121 Tube Holder was designed specifically for the Takahashi TSA-120 and FSQ-ED (same as TFK-1010-NU but does not include offset plate). This perfectly machined part is powder coat Takahashi green and felt lined to protect your optical tube's finish. The Takahashi TSA0121 Tube Holder is secured by chrome hand locking set bolt. Smooth opening hinged body for easy tube insertion.

The four element lens design creates a 44mm image circle and a super-wide 6.5 degree photographic field. This will allow your Takahashi FSQ-106 to perform like a super telephoto lens - capturing wildlife shots like never before and opening up astrophotography applications narrower fields can't image.

This Takahashi 7X50 Finderscope matches the Takahashi 180ED Epsilon Telescope! 50mm aperture with a limiting magnitude of 11. 7X magnifying power for spotting smaller objects. Takahashi TVF7504 Finderscope features legendary Takahashi optical quality. Fits any 50mm finderscope bracket and Takahashi bracket is sold separately.