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Field of View Calculator Test different telescope, camera & eyepiece combinations.
- Field of View
True Field of View Calculator Calculate the actual field of...
- Dust / Reflection Calculator
Dust / Reflection Calculator Find the position of dust or...
- Binocular Calculators
Apparent Field of View (ISO 14132-1:2002 standard) Convert...
- CCD Filter Size
CCD Filter Size Calculator. Add New Equipment To Database....
- Unit Conversion Calculators
Unit Conversion Calculators - Field of View Calculator -...
- Magnification
Notes: 1: Atmospheric seeing conditions (the sky) often...
- Guidescope Suitability
Guidescope Suitability Calculator. Calculate the resolution...
- CCD Suitability
Our calculator, at typical seeing of 2-4”, uses the Nyquist...
- Field of View
Astronomy field of view calculator. To bring up a field of view, select your telescope make and model, then select your camera make and model. You can select your eyepiece or binoculars by clicking 'Mode'. Click on 'Targets' to choose the object you wish to view.
Generate an image of any part of the sky from the STScI Digitized Sky Survey. (May take up to a minute to generate and download.) RA (degrees) Dec (degrees)
Click Calculate and the pixel resolution and field of view will be displayed below. The Sub-Exposure value, if displayed, is for guidance only and depends upon your local sky conditions and several other factors.
Enter the focal length of your telescope or lens to use for calculating the Field Of View (FOV) and the resolution arc-second per pixel. If you are using Canon/Nikon lens, APT will read the current lens focal length after each exposure and will update this value automatically.
Calculate the view of various deep-sky objects through different astronomy setups with our field of view calculator.
Discover your cosmic perspective with the Telescope Field of View Calculator. Calculate your telescope's view of the night sky!