Telescope Field of View Calculator Telescope Field of View Calculator Designation Value Required Data Telescope Focal Length MM Select Eyepiece Celestron β Micro Guide β 12.5 mmCelestron β Plossl β 6.3 mmCelestron β Plossl β 7.5 mmCelestron β Plossl β 10 mmCelestron β Plossl β 12.5 mmCelestron β Plossl β 17 mmCelestron β Plossl β 20 mmCelestron β Plossl β 26 mmCelestron β Plossl β 32 mmCelestron β Plossl β 40 mmMeade β Plossl β 5 mmMeade β Plossl β 6.7 mmMeade β Plossl β 9.5 mmMeade β Plossl β 16 mmMeade β Plossl β 25 mmMeade β Plossl β 40 mmMeade β Super Plossl β 6.4 mmMeade β Super Plossl β 9.7 mmMeade β Super Plossl β 12.4 mmMeade β Super Plossl β 15 mmMeade β Super Plossl β 20 mmMeade β Super Plossl β 26 mmMeade β Super Plossl β 32 mmMeade β Super Plossl β 40 mmMeade β Super Plossl β 56 mmMeade β Ultra Wide Angle β 4.7 mmMeade β Ultra Wide Angle β 6.7 mmMeade β Ultra Wide Angle β 8.8 mmMeade β Ultra Wide Angle β 14 mmPentax β SMC XL β 5.2 mmPentax β SMC XL β 7 mmPentax β SMC XL β 10.5 mmPentax β SMC XL β 14 mmPentax β SMC XL β 21 mmPentax β SMC XL β 28 mmPentax β SMC XL β 40 mmTakahashi β LE β 5.5 mmTakahashi β LE β 7.5 mmTakahashi β LE β 12.5 mmTakahashi β LE β 18 mmTakahashi β LE β 24 mmTakahashi β LE β 30 mmTakahashi β LE β 50 mmTelevue β Nagler β 4.8 mmTelevue β Nagler β 7 mmTelevue β Nagler β 9 mmTelevue β Nagler β 13 mmTelevue β Nagler Type 2 β 12 mmTelevue β Nagler Type 2 β 16 mmTelevue β Nagler Type 2 β 20 mmTelevue β Nagler Type 4 β 12 mmTelevue β Panoptic β 15 mmTelevue β Panoptic β 19 mmTelevue β Panoptic β 22 mmTelevue β Panoptic β 27 mmTelevue β Panoptic β 35 mmTelevue β PlΓΆssl β 8 mmTelevue β PlΓΆssl β 11 mmTelevue β PlΓΆssl β 15 mmTelevue β PlΓΆssl β 20 mmTelevue β PlΓΆssl β 25 mmTelevue β PlΓΆssl β 32 mmTelevue β PlΓΆssl β 40 mmTelevue β PlΓΆssl β 55 mmTelevue β Radian β 3 mmTelevue β Radian β 4 mmTelevue β Radian β 5 mmTelevue β Radian β 6 mmTelevue β Radian β 8 mmTelevue β Radian β 10 mmTelevue β Radian β 12 mmTelevue β Radian β 14 mmTelevue β Wide Field β 15 mmTelevue β Wide Field β 19 mmVixen β Lanthanum LV β 2.5 mmVixen β Lanthanum LV β 4 mmVixen β Lanthanum LV β 5 mmVixen β Lanthanum LV β 6 mmVixen β Lanthanum LV β 9 mmVixen β Lanthanum LV β 10 mmVixen β Lanthanum LV β 12 mmVixen β Lanthanum LV β 15 mmVixen β Lanthanum LV β 20 mmVixen β Lanthanum LV β 25 mmZeiss β Abbe β 4 mmZeiss β Abbe β 6 mmZeiss β Abbe β 10 mmZeiss β Abbe β 16 mmZeiss β Abbe β 25 mmZeiss β Abbe β 34 mm Eyepiece Focal Length MM Apparent Field Of View Degrees Calculated Results Calculated Magnification X Calculated True Field Of View Degrees
