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Vixen Optics VMC200L Reflector Telescope (5829)

54,500.00 THB

ราคาดังกล่าวรวมภาษีมูค่าเพิ่ม 7% เรียบร้อยแล้ว

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Part No. : ELE-WA432328073
Manufacture No. : VMC200L
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รายละเอียดสินค้า: Vixen Optics VMC200L Reflector Telescope (5829)

The VMC200L Reflector Telescope is a unique 200mm, 8" catadioptric optical system. It incorporates a primary mirror and a meniscus corrector just before a secondary mirror. By doing so, light is corrected twice on the optical path. The end result is that spherical aberration and field curvature are corrected to a high degree of optical performance. The VMC200L’s primary mirror is f/2.5; the compound optical system is f/9.75. This makes the system much more compact and portable than its competition. With the optical correction placed before the secondary mirror, the VMC200L avoids the necessity of having a corrector plate and all the dewing problems associated with a closed optical tube.

 

Vixen VMC200L Reflector

An additional key feature is the rack and pinion focusing that is placed behind the primary mirror. The use of this focusing system eliminates the image shift associated with most other SCT systems. This is especially important when using high power magnification or astro-photography. When focusing, the image is stable and easy to adjust. Astronomy Technology says "the f/9.75 focal ratio is noticeably faster than the typical Maksutov design ..which translates into a wider true field of view. Reaching focus is easy...Lightweight, portable, 8 inches of aperture, fast cool down, zero image shift, and reasonably priced - I guess it may be possible to have your cake and eat it too." Read the full review in Astronomy Technology Today. The VMC200L Reflector is made in Japan and is covered by a Five Year Warranty

 

Specifications:

 

Objective Lens

200mm (8”) ; precision spherical mirror

Coating

Multi Coated

Primary mirror

f=1950mm, f/9.75

Secondary mirror:

d=72mm, magnification 3.9x

Distance primary secondary

~330mm

Back Focus (from rear edge of focuser body)

149.0mm

Back Focus with Reducer (from rear edge of reducer)

63.5mm

Central obstruction

80mm diameter

Theoretical resolution (Dawes):

0.63"

Theoretical min mag:

13.3

Light Gathering

816x

Adapter Thread

60mm/50.8mm compression ring

Tube length

510mm

Weight:

5.9kg (13 lbs)

Dimensions:

232mm x 510mm (9.1 x 20 inches)

Finder scope:

Optional

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