outdoors Astronomical telescope 30070

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Model: F30070M

Aperture: 70mm (2.4 “)

Focal length: 300mm.f/4

Oblique mirror: 90 degrees

Jingwei Taiwan and aluminum tripod

The most height: 38cm

Standard 0.965 inch attachment contained:

Eyepiece: H6mm, H20mm 3 times 1.5 times as mirror Barlow lens

The maximum magnification: 150 times (focal length / eyepiece focal length * several times ballauff ratio = maximum magnification)

Aperture is the most important indicator of the choice of the telescope, with the definition of the definition and price is proportional to.

A. about function:

This gross weight about 2 kilograms, can see the Moon Island ring. (if you want to be exactly like, can refer to the store 70060 completely positive version, can be directly viewing). Three foot height: 38CM.

B. about configuration:

Focal length is 300 mm caliber is 70mm, with two eye lens: H6 (daytime viewing) and H2O (night watching the moon), another match 3 times Ba Luo Fujing and 1.5 times as mirror and moon mirror. Moon mirror: because there are a large number of reflective light interference when observing the full moon, the use of the moon mirror can exclude these interference, so that the moon’s surface to see more clearly. Please use the moon mirror screw eyepiece lower after the eyepiece with zenith mirror.

C. about multiple:

Respectively with eyepiece: H6mm, H20mm: multiple is 300/6=50 times, 300/20=15 times. If re matching three times the Barlow lens, the times are multiples of 50X3=150, times of 15X3=45; plus 1.5 times the positive image mirror and imaging is positive, multiples, respectively is: times of 50X1.5=75, 15X1.5=22.5 times. Minimum magnification: 15 times, maximum magnification: 150 times.

D. calculation formula:

The focal length eyepiece focal length * / several times the maximum magnification ratio = ballauff

The focal length / eyepiece focal length = magnification

E. installation sequence:

Three stand up first,. And then mounted on the barrel. Barrel is fixed, in the top of the tube installation Finder (used to preliminary finding objects of interest), and then loaded oculars (eyepieces 2 to 1). Find the target, and then with different eyepiece debugging, note: the first time, we must be patient! The odds are very, very, very, very small, not to mention that we have made a rigorous examination of each of the previous telescopes.

F., of course, is not the only multiple, mainly to see the size and focal length and other integrated factors.

For example, a large window of the house, the light is naturally good, it is clear that it is the same reason.

When using G. 3 times Fujing Balotelli, first installed barov mirror, and then put the eyepiece.

(loaded barov mirror, need to put the lid on the eyepiece device installation removed.)

Note: H. 2 (H6mm, H20mm) and the eyepiece can only choose 1 installation.

2 doubler (3 times 1.5 times as Barlow lens mirror) also can choose 1.

I., of course, is not the only multiple, mainly to see the size and focal length and other integrated factors.

Category: Cameras and Photography:Telescopes and Binoculars:Telescopes
Location: 金华, 浙江省

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