TG-SP60C FS-60C On Teegul Sky Patrol III mount

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Takahashi has just introduced the latest addition to its FS Series fluorite apochromatic refractors. As with all other FS refractors the FS-60C has its hard multi-coated fluorite objective up front with a low dispersion hard multicoated rear element

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 an camera tripod.

This smallest most portable mount can be taken around the World for solar eclipse or expeditions to remote areas.

Visual Limiting Magnitude:
This is the magnitude (or brightness) of the faintest star that can be seen with a telescope. The larger the number, the fainter the star that can be seen. An approximate formula for determining the visual limiting magnitude of a telescope is 7.5 + 5 log aperture (in cm).

This is the formula that we use with all of the telescopes we carry, so that our published specs will be consistent from aperture to aperture, from manufacturer to manufacturer. Some telescope makers may use other unspecified methods to determine the limiting magnitude, so their published figures may differ from ours.

Keep in mind that this formula does not take into account light loss within the scope, seeing conditions, the observer’s age (visual performance decreases as we get older), the telescope’s age (the reflectivity of telescope mirrors decreases as they get older), etc. The limiting magnitudes specified by manufacturers for their telescopes assume very dark skies, trained observers, and excellent atmospheric transparency – and are therefore rarely obtainable under average observing conditions. The photographic limiting magnitude is always greater than the visual (typically by two magnitudes).

10.7
Focal Length:
This is the length of the effective optical path of a telescopeor eyepiece (the distance from the main mirror or lens where the lightis gathered to the point where the prime focus image is formed). Focallength is typically expressed in millimeters.

The longer the focallength, the higher the magnification and the narrower the field of viewwith any given eyepiece. The shorter the focal length, the lower themagnification and the wider the field of view with the same eyepiece.

355mm
Focal Ratio:
This is the ‘speed’ of a telescope’s optics, found by dividing the focal length by the aperture. The smaller the f/number, the lower the magnification, the wider the field, and the brighter the image with any given eyepiece or camera.

Fast f/4 to f/5 focal ratios are generally best for lower power wide field observing and deep space photography. Slow f/11 to f/15 focal ratios are usually better suited to higher power lunar, planetary, and binary star observing and high power photography. Medium f/6 to f/10 focal ratios work well with either.

An f/5 system can photograph a nebula or other faint extended deep space object in one-fourth the time of an f/10 system, but the image will be only one-half as large. Point sources, such as stars, are recorded based on the aperture, however, rather than the focal ratio – so that the larger the aperture, the fainter the star you can see or photograph, no matter what the focal ratio.

f/5.9
Resolution:
This is the ability of a telescope to separate closely-spaced binary stars into two distinct objects, measured in seconds of arc. One arc second equals 1/3600th of a degree and is about the width of a 25-cent coin at a distance of three miles! In essence, resolution is a measure of how much detail a telescope can reveal. The resolution values on our website are derived using the Dawes’ limit formula.

Dawes’ limit only applies to point sources of light (stars). Smaller separations can be resolved in extended objects, such as the planets. For example, Cassini’s Division in the rings of Saturn (0.5 arc seconds across), was discovered using a 2.5” telescope – which has a Dawes’ limit of 1.8 arc seconds!

The ability of a telescope to resolve to Dawes’ limit is usually much more affected by seeing conditions, by the difference in brightness between the binary star components, and by the observer’s visual acuity, than it is by the optical quality of the telescope.

1.95 arc seconds
Aperture:
This is the diameter of the light-gathering main mirror or objective lens of a telescope. In general, the larger the aperture, the better the resolution and the fainter the objects you can see.
2.4"
Telescope Type:
The optical design of a telescope.  Telescope type is classified by three primary optical designs (refractor, reflector, or catadioptric), by sub-designs of these types, or by the task they perform.
Refractor
 
Based on Astronomy magazine’s telescope "report cards", scopes of this size and type generally perform as follows . . .
Terrestrial Observation:
Observing terrestrial objects (nature studies, birding, etc.) is usually possible only with refractor and catadioptric telescopes, and convenient only when the scope is on an altazimuth mount or photo tripod. Most reflectors cannot be used for terrestrial observing. Scopes with apertures under 5" to 6" are generally most useful for terrestrial observing due to atmospheric conditions (heat waves and mirage, dust, haze, etc.) that degrade the image quality in larger scopes. 
Yes
Lunar Observation:
Visual observation of the Moon is possible with any telescope. Larger aperture scopes will provide more detail than smaller scopes, thereby getting a higher score in this category, but may require an eyepiece filter to cut down the greater glare from the Moon's sunlit surface so small details can be seen more easily. Lunar observing is more rewarding when the Moon is waxing or waning as the changing sun angle casts constantly varying shadows to reveal craters and surface features by the hundreds.  
Great
Planetary Observation:
Very Good
Binary and Star Cluster Observation:
Very Good
Galaxy and Nebula Observation:
Fair
Photography:
Yes
Terrestrial Photography:
Photographing terrestrial objects (wildlife, scenery, etc.) is usually possible only with refractor and catadioptric telescopes, and convenient only when the scope is on an altazimuth mount or photo tripod. Most reflectors cannot be used for terrestrial photography. Scopes with focal ratios of f/10 and faster and apertures under 5" to 6" are generally the most useful for terrestrial photography due to atmospheric conditions (heat waves and mirage, dust, haze, etc.) that degrade the image quality in larger scopes.
No
Lunar Photography:
Photography of the Moon is possible with virtually any telescope, using a 35mm camera, DSLR, or CCD-based webcam (planetary imager). While an equatorial mount with a motor drive is not strictly essential, as the exposure times will be very short, such a mount would be helpful to improve image sharpness, particularly with webcam-type cameras that take a series of exposures over time and stack them together. Reflectors may require a Barlow lens to let the camera reach focus. 
Yes
Planetary Photography:
Yes
Star Cluster / Nebula / Galaxy Photography:
No
Warranty:
5 years
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General Accessories
Camera Adapters (1)
Mamiya 645 Adapter for Sky 90 II and FS-78
by Takahashi
Quantity:  
$254.95 
Counterweights (1)
0.6Kg (1.3 lbs.) for Takahashi Teegul mount only
by Takahashi
Quantity:  
$94.95 
Visual Accessories
Barlow Lenses (1)
2X 1.25" Barlow with compression ring
by Takahashi
Quantity:  
$214.95 
Eyepieces (2)
5mm 1.25" long eye relief ED
by Takahashi
Quantity:  
$272.95 
12.5mm 1.25" long eye relief
by Takahashi
Quantity:  
$258.95 
Photographic Accessories
Camera Adapters (3)
35mm wide mount coupling for FS-78, FS-60C, and Sky 90 II
by Takahashi
Quantity:  
$83.95 
Eyepiece Projection adapter, needs T-ring
by Takahashi
Quantity:  
$317.95 
Camera angle adjuster FS-78/60C/60E/Sky 90 II
by Takahashi
Quantity:  
$242.96 
Tele-Compressors (Photo/Visual) (1)
Reducer for FCL-90 Sky90 II refractor
by Takahashi
Quantity:  
$524.95 
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Takahashi - TG-SP60C FS-60C On Teegul Sky Patrol III mount

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Takahashi - TG-SP60C FS-60C On Teegul Sky Patrol III mountFull-length image of FS-60C on Teegul Sky Patrol mount.
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Our Product #: T6100
Manufacturer Product #: TTG6100
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Takahashi has just introduced the latest addition to its FS Series fluorite apochromatic refractors. As with all other FS refractors the FS-60C has its hard multi-coated fluorite objective up front with a low dispersion hard multicoated rear element

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 li . . .






. . . our 34th year