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need to: need to use two same eyepiece.

8° exit pupil diameter 6mm exit pupil distance 18mm close focus distance 5m interpupillary distance 52-72mm.magnification 20x eyepiece caliber 24mm objective lens aperture 50mm main material metal, rubber field of view angel 5.

magnification 12 times objective lens caliber 50mm eyepiece caliber 18mm prism bak4 coating fmc green costing field of view 1500m/9500m.

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04inch weight approx.magnification 16x objective diameter 52mm field of view 66m/8000m prism system roof exit pupil 5.

describename golf rangefindermeasuring range 5500mmeasurement accuracy 1mspeed range 0300kmhspeed accuracy 5kmhmeasurement unit yd mfield of view 7magnification 6xeyepiece aperture.

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2° linear field of view 18.25 inch ortho-zeniths mirror structure equatorial instrument tripod aluminum tripod magnifying lens 3x field of view 1.

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. screw + button fixed.

f / 4 maximum height 38cm this one can weigh about 2 kilograms and can see the circular island of the moon..

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7*2.3in effective stadia 150-200 (m) objective diameter 24 (mm) operating voltage 9 (v) magnification 3x.7*5.material outer silicone, inner metal item type hd binocular night vision model nv3180 quantity 1pc color black size 196*146*59mm / 7.

- multi-layers anti-reflection coating: - non-cementing optical substrate coating - electron-beam evaporation with ion-assisted deposition coating technology for durability and resistance to scratching, as well as stability on cwl(central wavelength) no deviation affected by temperature change.

- suitable for visual observation on most emission nebulae, planetary nebulae and supernova remnants - suitable for viewing on bright nebulae like m42 orion nebula in heavy light pollution - use with a large aperture telescope under clear and dark viewing conditions with good seeing.

1a,7.syi.ber,pwr.

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430g.model 40x60 magnification 40x objective caliber 42mm eyepiece caliber 18mm material optical glass lenses+pvc prism bak4 eyepiece coating fmc green film objective coating fmc multi-layer transparent enhanced green film weight approx.

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magnification 10x objective lens diameter 36mm eyepiece diameter 20mm outlet diameter 3.5° focusing method center/right eye focusing close focus distance 5 meters.

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