The “mm” on a telescope and on eyepieces is in reference to milli-meters. Most measurements are given in metric form on a telescope. This is done for easy math and quick solutions to …

Jul 30, 2020 · To determine the focal lengths of eyepieces that fall within the magnification limits, you must take the focal length and divide by the magnification. For the AstroMaster 130EQ, …

Aug 11, 2021 · First of all, you need to know the magnification that will result if you pair an eyepiece you are considering with your telescope. The math is easy division; take your …

Jul 19, 2024 · Most telescope packages come with one or two eyepieces, which give you one or two magnification options. But this is not enough to let you take full advantage of the light …

Sep 20, 2023 · The most common telescope eyepiece sizes are 1.25 inches (31.75 mm) and 2 inches (50.8 mm). These measurements refer to the diameter of the eyepiece’s barrel, which …

Browse a variety of telescope eyepieces and eyepiece kits for sale from High Point Scientific. Find the eyepiece that fits your telescope with our selection today!

Mar 19, 2003 · With a focal length of just 6mm, this eyepiece offers high magnification to get in close and observe objects when seeing conditions are stable. The 1.25” mounting barrel is …

The focal length of your telescope eyepieces, in millimeters (mm) has an inverse relationship with magnification. That means that the smaller the focal length in millimeters, the larger the …

Mar 7, 2025 · To determine magnification of a specific eyepiece in your own telescope, simply divide the focal length of your telescope by the focal length of the eyepiece. For example, in a …

Sep 18, 2020 · For beginner eyepieces we will only be considering 1.25" and 0.965". 1.25" is the standard for modern eyepieces, but you'll find 0.965" eyepieces in very low quality telescopes …