5. Calculation method of Practical telescope Telescope magnification: magnification = objective lens focal length/eyepiece focal length X magnification.
4. This model has a focal length of 350mm, a diameter of 50mm, and 2 eyepieces, respectively: K25 and K9.Multiply it by one, so it's 3 times (BARLOW LENS 3X).The assembly of K25 and K9 is 14 times and 38.8 times respectively.Add 3X to multiply the mirror, you get multiple: 42 times, 116 times.
3. Small size and portable bag, it is very suitable for going out to carry and watch the scenery, people and birds.
2. It is suitable for viewing, bird watching and astronomical observation. The observation distance is very long and the effect is good.
1. The height of tripod is about 38 Cm.Overall net weight: about 2 kg.The gross weight after packing is about 3 kilos.
Description
3. The large eyepiece has a wider field ofand broader vision, so you can enjoy a visual feast
2. Multilayer broadband coating, ultrahigh light transmittance imaging sharp and transparent
1. Practical telescope Telescope (including compass) + universal phone clip + aluminum alloy tripod
Resolution, 1.842 arcseconds
Exit pupil distance 15 (mm) exit pupil diameter 6 (mm) visual field 1500M/9500M