Discovery Sky T76 с книгой [14/56] Care and maintenance

Discovery Sky T76 с книгой [14/56] Care and maintenance
14
Specications
Discovery Sky T50 Discovery Sky T60 Discovery Sky T76
Optical design refractor refractor Newtonian reector
Optics material optical glass with anti-reective coating
Tube material plastic metal metal
Aperture, mm 50 60 76
Focal length, mm 600 700 700
Focal ratio f/12 f/11.6 f/9.2
Highest practical
power, x
100 120 152
Eyepiece barrel
diameter, inch
0.96 0.96 0.96
Eyepieces
6mm (100x)
20mm (30x)
4mm (175x)
12.5mm (56x)
20mm (35x)
4mm (175x)
12.5mm (56x)
20mm (35x)
Barlow lens 3x 3x 2x
Erect image eyepiece 1.5x
Diagonal mirror + +
Finderscope optical, 2x24 optical, 5x24 optical, 5x24
Mount AZ AZ AZ
Tripod
aluminium
650—1250mm
aluminium
750—1250mm
aluminium
850— 1250mm
Accessory tray + +
The manufacturer reserves the right to make changes to the product range and specications without
prior notice.
Care and maintenance
Never, under any circumstances, look directly at the Sun through this device without a special
lter, or look at another bright source of light or at a laser, as it may cause PERMANENT RETINAL
DAMAGE and may lead to BLINDNESS.
Take the necessary precautions when using the device with children or others who have not read or
who do not fully understand these instructions.
Do not try to disassemble the device on your own for any reason. For repairs and cleaning of any
kind, please contact your local specialized service center.
Stop using the device if the lens fogs up. Do not wipe the lens! Remove moisture with a hair dryer or
point the telescope downward until the moisture naturally evaporates.
Protect the device from sudden impact and excessive mechanical force.
Do not touch the optical surfaces with your ngers. Clean the lens surface with compressed air or a
soft lens cleaning wipe. To clean the device exterior, use only the special cleaning wipes and special
tools that are recommended for cleaning the optics.
Store the device in a dry, cool place away from hazardous acids and other chemicals, away from
heaters, open re, and other sources of high temperatures.
Replace the dust cap over the front end of the telescope whenever it is not in use. Always put
eyepieces in their protective cases and cover them with their caps. This prevents dust or dirt from
settling on the mirror or lens surfaces.

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