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Will the entire object fit on my sensor?

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#1 sgreiner

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Posted 14 March 2019 - 08:12 PM

Is there a formula that will calculate the sensor size needed to fit an entire object on the sensor?

In my case I have a Lunt 80mm Solar scope and want to know if I go with the ASI1174mm camera with a sensor size of 1936 x 1216, will the entire disk fit on the sensor.


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#2 Alien Observatory

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Posted 14 March 2019 - 08:14 PM

Try this FOV tool..use the Imaging Tab....Pat Utah smile.gif

 

https://astronomy.to.../field_of_view/


Edited by Alien Observatory, 14 March 2019 - 09:35 PM.

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#3 WarmWeatherGuy

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Posted 14 March 2019 - 08:43 PM

You don't need to know the size of the aperture or the number of pixels. To calculate the field of view you need to know the focal length and the size of the sensor in length, not pixels. If you have the focal length and the size of the sensor in the same units (e.g. millimeters) then the FOV is

 

FOV = sensor size / focal length.

 

The answer is in radians. Multiply by 57.3 degrees per radian to convert to degrees.

 

FOV in degrees = 57.3 * sensor size / focal length.

 

For example, if your sensor is 10mm and your focal length is 600 then your FOV is 57.3 * 10 / 600 = 0.955°.


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#4 ks__observer

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Posted 15 March 2019 - 01:38 AM

http://www.blackwate...maging-toolbox/


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