Hubble Space Telescope

What is a barlow lens on a telescope?

Top Answer
User Avatar
Wiki User
Answered 2007-07-06 20:15:18

A barlow lens increases the magnification of the eyepiece usually by a factor of two.

User Avatar

Your Answer


Still Have Questions?

Related Questions

What type of lens in microscope and telescope?

convex lens in microscope and concave lens in telescope

What lens in a refracting telescope gathers light?

The objective lens. Which is the large lens on the front of the telescope

Are lens part of a telescope?

-- A refracting telescope must have a lens, otherwise it's not a refracting telescope. -- A reflecting telescope can be constructed without any lens, but if you intend to look through it, then you'll use a little lens for the eyepiece.

What does the simplest optical telescope contain?

It contains an objective lens and a lens in the eyepiece of the telescope.

What does a refracting telescope use to produce an image?

A lens.A lens.A lens.A lens.

What are the three functions of a telescope?

the three functions of a telescope are the objective lens, the focuser, and the ocular lens

How are reflecting and retracting telescopes different?

A reflecting telescope is different from a refracting telescope because a reflecting telescope uses a concave lens, a plane mirror, and a convex lens. While a refracting telescope uses two lens.

How many lens does a telescope have?

depends what kind of telescope

What is the function of the objective lens of a refracting telescope?

The objective lens focuses the light entering a refracting telescope.

What is the lens that is the larger lens in a refracting telescope?

The "objective" lens (as opposed to the eyepiece).

What telescope uses a convex lens to gather light?

spectrum telescope refracting telescope

Difference reflecting and refracting telescope?

A reflecting telescope has mirrors, and a refracting telescope has a lens.

What telescope has an eyepiece lens and a mirror?

The telescope described is an optical telescope. If the primary optic is a mirror, it's a reflector, and it the primary optic is a lens, it's a refractor.

A refracting telescope is a type of what telescope?

A telescope in which the principle optical component is a lens, as opposed to a mirror

What type of lens is used in internal focusing of telescope?

Concave lens.

What in the telescope forms an image?

The lens

How many lens are there in a refracting telescope?

In a simple model there are two: the objective lens and the eyepiece lens

Compare the functions of the objective lens in a telescope and a microscope?

The objective lens in a microscope is mainly used to magnify an object. In a telescope, the objective lens is mainly used to gather light.

What does EQ means on a telescope lens?

EQ indicates that the telescope has an Equatorial mount

How many mirrors does a refracting telescope have?

None. A refracting telescope uses a lens.

How many lens does a reflecting telescope have?

It depends on the type of reflecting telescope.

What do you call a telescope that uses a lens to focus light?

It is called a refracting telescope.

You got 10mm lens and 20mm lens for your telescope What is the difference?

10mm lens is more powerful than the 20mm lens

Does a eyepiece of a telescope have a lens?

A telescope eyepiece usually has 2 lenses in an astronomical telescope, and it is designed to give a magnified view of the virtual image produced at the focal point of the main lens.

What is the lens you look through in a telescope binocular or microscope called?

ocular lens