APS-C DSLR
 Calculator
This calculator gives you the field of view and pixel resolution of a DSLR using a 22.2mm x 14.8mm APS-C sensor such as the Canon 1100D for a wide range of telephoto lens, telescope and accessory scenarios.
Scope
aperture
Scope
focal ratio
Barlow
lens
Focal
reducer
  f/
Here is an analysis of your camera's performance using the parameters selected above:

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