How do you find faint objects in a telescope?

A strategy some observers use to really seek out faint details is to "tap" the side of your telescope to let it "vibrate" just slightly. This goes ones step further with 'averted vision,' as not only did the human eye detect light from the sides better, it also detected motion.

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And another question, how far can a 4mm lens see?

Things to note: the more narrower the lens, the focus is further away. Eg. typical 4mm lens is focus 4-10 metres. Is a 40mm telescope good? Designed for young astronomers who are beginning their explorations into observation, the Discovery 40mm telescope is a great starter instrument for both nighttime moon gazing and daytime nature watching.

What eyepiece is best for deep sky objects?

Regarding this, how big of a telescope do you need to see saturn rings? The rings of Saturn should be visible in even the smallest telescope at 25x [magnified by 25 times]. A good 3-inch scope at 50x [magnified by 50 times] can show them as a separate structure detached on all sides from the ball of the planet.

What can I see with 70mm telescope?

The colorful bands and belts of Jupiter, as well as its four major moons, and the rings of Saturn are clearly visible in a 70mm telescope. Mars, Venus and Mercury are visible in a small scope as well, but are extremely reluctant to give up any detail because of their overwhelming brightness. Is a 5 inch telescope good? 5-inch Telescopes offer exceptional resolution for their size. They can resolve double stars at . 91 arcseconds and can be magnified up to 254 times the human eye. 5"" Optical tubes also make exceptional light gatherers by allowing an observer to see 14.3 magnitude stars!