high quality 20x35 antique brass telescope
USD $12.5 - $20 /Piece
Min.Order:10 Pieces
Yiwu Rifeng Optical Instrument Co., Ltd.
high quality 20x35 brass Pirates of the Caribbean telescope
Lens barrel main parts for aviation aluminum, high quality leather hand parts package, elegant appearance, has the intense sense of metal in hand; Lens by Paul BAK4 prism, vision clear, open and bright! Shrinkage is very small! Convenient to carry!
1: volume and the weight is very small, very convenient to carry
2: optical glass, all the surface plating anti-reflection blue film, imaging effect is good
3: accessories: portable cloth (portfolio is optional), lens wiping cloth, manual, etc
Parameters are as follows:
Mouth diameter: 30 mm
Magnification: 25 times (real rate)
Visual field: 126 m / 1000 m
Observation range: 30 ~ 68 mm
An exit pupil diameter: 1.2 mm
View Angle: 5-1.4 °
Exit pupil distance: 24 mm
Exit pupil diameter: 5 mm to 1.6 mm
Prism: ROOF prism
Size: 36 x36x335mm
Q:Using a telescope for the first time how to operate?
A: a. the program from: change the distance between telescope two lens barrel, until the left and right occasions for a circular view so far. At this moment two lens barrel exit pupil distance two pupil distance is consistent with the human eye.
B. focus: first turn the telescope in the institutions (handwheel or adjusting plate), until the left eye can see the target. Then turn the right eyepiece the visibility of the handwheel, make right eye also see goals.
C. observation: the telescope is roughly on the observable, institutions in the rotation, its eyes can quickly see targets at the same time. To the scene of different distance, as long as the rotation of the institutions, can quickly see clear.
When used with glasses, please send the telescope patch again after use, so you can see the whole view. Reset with put patch. The steps are the same when using variable x telescope. If the target to need to see the details, then transfer variable times handle to high position.
Q:why do some people use the telescope will feel dizzy?
A: because is out of focus, resulting in visual fatigue. Should adjust imaging on bright distance, so that when observing eyes don't have very laborious adjustment to adapt to the imaging lens, bright distance of each different, others to adjust the focal length is not necessarily suitable for their own eyes, it should be adjusted according to your own eyes, is to feel eyes long time observation will not feel tired.
Binoculars must ensure that the two watch the tube, comfort.
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