209 / Explorer Scientific AR 152 telescope AR DOUBLET SERIES Japan Used mas4 For Sale
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209 / Explorer Scientific AR 152 telescope AR DOUBLET SERIES Japan Used mas4:
Explorer Scientific AR 152
It is an authentic air spaced (separation type) two-ball ball aromat refractor telescope. It boasts a high contrast that is the taste of a refracting telescope. Although it is an achromat of the basic specification, it is possible to use a large eyepiece for high amateurs equipped with a focuser with a 2 inch diameter deceleration micromotion device as with other lens barrel series. A large 2 inch size large diagonal mirror (zenith mirror) comes standard.
Main SpecificationsOptical system achromat lens barrel material aluminumEffective diameter 152? Focal length 988?Diameter ratio F 6.5 Resolution 0.77Barrel outer diameter 157.8? Lens barrel total length 1041?Weight 10.7?Accessory 2 inches Corresponding decelerator Focuser with micromotion device / 50.8 to 31.7 Adapter / field of view 6 '8x50 viewfinder (inverted)