Should I Use a Barlow Lens?

A cost effective way to increase the magnification of your eyepieces. An extremely useful tool every amateur astronomer should have is a Barlow Lens. If you attach a 2x Barlow lens to that eyepiece you will double the effective magnification of that eyepiece to 100x. ...

Is a Barlow lens worth it?

Every amateur astronomer should consider the Barlow lens as an extremely useful tool. One of the greatest advantages of say, a 2x Barlow Lens is that it doubles the magnification of your eyepieces, which can also be effectively seen as doubling your eyepiece collection.

When would you use a Barlow lens?

In microscopy the Barlow lens is used to increase working distance and decrease magnification. The lenses are "objective lenses" that are mounted in front of the microscope's last objective element. Barlow lenses for microscopes can be found with magnifications ranging from 0.3× to 2×.