Feature:
– Model: F30070
– Aperture: 70mm (2.4 inch)
– Focal Length: 300mm f/4
– Oblique Mirror: 48 degrees
– Warp / Weft Machine and Aluminum Tripod
– The Most Highly: 115cm
Standard 0.965-inch attachment contains:
– Eyepiece: H6mm, H20mm
– 3X the Barlow lens
– 1.5X positive lens
Note: This maximum magnification: 150X (lens focal length / eyepiece focal length x Barlow multiplier = maximum magnification)
About Configuration:
– Moon Filter: Because there is a lot of reflected light interfering with our observation of full moon, we can use the moon filter to avoid the interference, and then the moon’s surface will be seen more clearly.
– Please screw the moon filter into the threaded of eyepiece lens’ lower part, and then connect the eyepiece lens with zenith lens.
About Multiples:
– Equipped with eyepiece: H6mm, H20mm, multiples are 300/6 = 50X, 300/20 = 15X
– If choose 3X Barlow lens together, multiples are 50 x 3 = 150X, 15 x 3 = 45X
– Plus 1.5X the positive lens again, multiples are 50 x 1.5 = 75X, 15 x 1.5 = 22.5X
The formula:
– Objective lens focal length / eyepiece focal length x Barlow multiplier = maximum magnification
– Objective lens focal length / eyepiece focal length = magnification
Installation sequence:
1. Put up tripod, then attach the lens tube.
2. After the tube is fixed, install the finder scope (for preliminary search of the target object), then install the eyepiece (choose one from the two).
3. After finding out the big goal, then debug with different eyepieces.
Note:
2. When using the 3X Barlow lens, install Barlow lens first, and then install the eyepiece. (When installing the Barlow lens, we need to move out the lid on the installation device of eyepiece.)
3. We just can choose one eyepiece to install at the same time, so does the Barlow lens.
For: Astronomy
Material: Optical glass
Color: Silver
Product size (L x W x H): 31.50 x 10.50 x 10.50 cm / 12.4 x 4.13 x 4.13 inches
Package size (L x W x H): 46.50 x 22.00 x 11.50 cm / 18.31 x 8.66 x 4.53 inches
Package Contents: 1 x Astronomical Telescope, 2 x Eyepiece, 1 x Tripod, 2 x Barlow Lens, 1 x Moon Filter, 1 x English User Manual










