Telescope Field Of View And Power Calculator

This calculator requires the use of Javascript enabled and capable browsers. This calculator is designed to give the true field of view and magnification of a telescope. Enter the data for the scope's focal length; then either select an eyepiece from our list of readily available units by brand and size or, type in an eyepiece focal length and apparent field of view. Click the Calculate button to view the results. Designation Value Required Data Entry Telescope Focal Length MM Select Eyepiece Celestron - Micro Guide - 12.5 mm Celestron - Plossl - 6.3 mm Celestron - Plossl - 7.5 mm Celestron - Plossl - 10 mm Celestron - Plossl - 12.5 mm Celestron - Plossl - 17 mm Celestron - Plossl - 20 mm Celestron - Plossl - 26 mm Celestron - Plossl - 32 mm Celestron - Plossl - 40 mm Meade - Plossl - 5 mm Meade - Plossl - 6.7 mm Meade - Plossl - 9.5 mm Meade - Plossl - 16 mm Meade - Plossl - 25 mm Meade - Plossl - 40 mm Meade - Super Plossl - 6.4 mm Meade - Super Plossl - 9.7 mm Meade - Super Plossl - 12.4 mm Meade - Super Plossl - 15 mm Meade - Super Plossl - 20 mm Meade - Super Plossl - 26 mm Meade - Super Plossl - 32 mm Meade - Super Plossl - 40 mm Meade - Super Plossl - 56 mm Meade - Ultra Wide Angle - 4.7 mm Meade - Ultra Wide Angle - 6.7 mm Meade - Ultra Wide Angle - 8.8 mm Meade - Ultra Wide Angle - 14 mm Pentax - SMC XL - 5.2 mm Pentax - SMC XL - 7 mm Pentax - SMC XL - 10.5 mm Pentax - SMC XL - 14 mm Pentax - SMC XL - 21 mm Pentax - SMC XL - 28 mm Pentax - SMC XL - 40 mm Takahashi - LE - 5.5 mm Takahashi - LE - 7.5 mm Takahashi - LE - 12.5 mm Takahashi - LE - 18 mm Takahashi - LE - 24 mm Takahashi - LE - 30 mm Takahashi - LE - 50 mm Televue - Nagler - 4.8 mm Televue - Nagler - 7 mm Televue - Nagler - 9 mm Televue - Nagler - 13 mm Televue - Nagler Type 2 - 12 mm Televue - Nagler Type 2 - 16 mm Televue - Nagler Type 2 - 20 mm Televue - Nagler Type 4 - 12 mm Televue - Panoptic - 15 mm Televue - Panoptic - 19 mm Televue - Panoptic - 22 mm Televue - Panoptic - 27 mm Televue - Panoptic - 35 mm Televue - Plössl - 8 mm Televue - Plössl - 11 mm Televue - Plössl - 15 mm Televue - Plössl - 20 mm Televue - Plössl - 25 mm Televue - Plössl - 32 mm Televue - Plössl - 40 mm Televue - Plössl - 55 mm Televue - Radian - 3 mm Televue - Radian - 4 mm Televue - Radian - 5 mm Televue - Radian - 6 mm Televue - Radian - 8 mm Televue - Radian - 10 mm Televue - Radian - 12 mm Televue - Radian - 14 mm Televue - Wide Field - 15 mm Televue - Wide Field - 19 mm Vixen - Lanthanum LV - 2.5 mm Vixen - Lanthanum LV - 4 mm Vixen - Lanthanum LV - 5 mm Vixen - Lanthanum LV - 6 mm Vixen - Lanthanum LV - 9 mm Vixen - Lanthanum LV - 10 mm Vixen - Lanthanum LV - 12 mm Vixen - Lanthanum LV - 15 mm Vixen - Lanthanum LV - 20 mm Vixen - Lanthanum LV - 25 mm Zeiss - Abbe - 4 mm Zeiss - Abbe - 6 mm Zeiss - Abbe - 10 mm Zeiss - Abbe - 16 mm Zeiss - Abbe - 25 mm Zeiss - Abbe - 34 mm Eyepiece Focal Length MM Apparent Field Of View Degrees     Calculated Results Calculated Magnification X Calculated True Field Of View Degrees Version 1.9.2 Search Our Site Browse Our Calculators CSGNetwork Web Automotive Aviation Communications Computer Electronics Business And Financial Gemological General Interest Geography Related Health Math Everyday Use Lottery Construction Marine Pure Educational Math Science Games Sports Snippets Source Code Time Weather Co-operating Sponsors and Technology used on our Website Registered® Trademark™ and CopyrightŠ 1973 - CSG, Computer Support Group, Inc. and CSGNetwork.Com All Rights Reserved Home | CSG Sitemap | CSG Sections | Contact Us | Search | Remote Support | Calculators | Glossary