Takahashi© Flourite Apochromatic Refractor 高橋螢石復消色差折射望遠鏡 FS-60C | FS-78 | FS-102
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Takahashi©
China
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Telescope
望遠鏡 |
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FS-60C
: Small cutest baby  
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FS-60C This compact short focus [f/5.9 - 355mm] apo refractor is the perfect eclipse telescope and with its triplet reducer [f/4.4 - 264mm] is a great little astro camera or spotting scope. The FS-60C is supplied with the revolutionary "palm sized" equatorial mount "The Teegul Sky Patrol." This small, very portable sidreal rate mount will fit in a camera bag and can be attached to a camera tripod.
This smallest most portable mount can be taken around the world for solar
eclipse or expeditions to remote areas. |
Specification
of
FS-60C
The smallest
of flourite APO refractor on earth, good for observing sun, moon, planet,
deep sky objects and use for guiding purpose. A 5 degree FOV will
give spectacular result when in terrestrial viewing. |
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| FS-60C
System Chart 1. Tube assembly 2. Dew shield 3. Focusing knob 4. Draw tube 5. Draw tube clamp 6. Camera angle adjuster 14. Coupling (S) 16. Aux. ring 18. Reducer 32. T-mount 33-B. Wide T-mount 34. 35mm SLR camera 36. TCA-4 camera adapter 46. Adapter 1.25" oculars 47. Oculars (1.25") 49. Diagonal prism 60. Doubler attachment C2X |
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 CCD Images taken with FS-60C (courtesy of Michael Chapa, UK)  NGC6992 (part of Veil Nebula)  VDB142 |
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Takahashi was the first manufacturer to make apochromatic telescopes using a fluorite element in the objective. Since the first 90mm fluorite apochromat was introduced in 1977, Takahashi has developed an extensive line of apochromats using doublet and triplet objectives. The objective lenses of these refractors use manmade fluorite crystal which is made from natural calcium fluorite (CaF2). Now as a result of a production breakthrough which permits the fluorite crystal to be completely hard multi-coated, Takahashi has been able to finally re-design its fluorite FC series to produce the FS series. The new design includes not only a multicoated fluorite crown (front element), but also uses a low dispersion flint (rear element) to produce a "world class" apochromat. Each optical tube assembly is fully baffled with knife-edge baffles to produce the highest possible contrast. The diffraction-limited optics can be used at magnifications over 100x per inch of aperture on nights of excellent seeing. Actually, the figure can be closer to 120x!!! The fully kulti-coated optics and two ideally-combined elements will produce brighter images than designs, which use three or more elements. The FS-78 outperforms larger conventional refractors. The diffraction-limited apochromatic optics produce crisp, high contrast images free of secondary color over the entire field of view. Seven internal baffles enhance the contrast and produce a very dark background. It is highly portable and can be taken to remote sites or on solar eclipse expeditions.
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| FS-78
System chart 1. Main tube 2. Focuser unit 3. Focuser 4. Clamp, focuser 5. Knob, focuser 6. Camera angle adjuster 10. Coupling 11. Extension tube (S) 13. 50.8mm sleeve 14. Coupling (S) 18. Reducer 24. Diagonal prism (L) 29. Quintuple turret w/DP(L) 30. CA35 31. TSC Prime focus ring 32. T-mount 34. 35mm SLR camera 36. TCA-4 camera adapter 38. ø 52mm filter 41. Aux ring 42. Adapter for M645 camera 43. Mamiya M645 camera 45. Coupling DP(L) 46. Adapter, 31.7mm ocular 47. Oculars (31.7mm) 48. Oculars (50.8mm) 49. Diagonal prism (M) 70. Adapter, 50.8mm ocular 71. Extension tube (50.8mm) 75. CCD camera 80. 50.8mm sleeve (easy guider) 81. Easy-Guider (Lumicon) |
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Specifications of FS-78 |
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FS-102
: Most popular refractor |
The Standard mount
for the FS-102 is the EM-10, but an optional EM-200 mount may be used for
added stability and accuracy. Both mounts are all electric with built-in
polar alignment telescopes and leveling bubbles to permit 2-arc minute
alignment on level or uneven ground in a few minutes. An autoguider
connection is standard. |
Specification of FS-102
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FS-102 standing at Xinlung Observatory |
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