📷 Camera / Lens Simulator

Calculates how an AllSky image is projected onto a selected sensor with a given lens.
Focus: sensor size, projection, price, beginner-friendliness, and purchase options.
Reload
Inputs
1.00 = unchanged
Beginner-friendly rating
Beginner-friendly rating
Well suited
Total price
–
Optical suitability
12.0 MP / 12.3 MP
  • The 180° AllSky circle fits the sensor well in the calculation.
  • The sensor size is roughly at the edge of what the lens can support.
  • The lens MP class matches the camera well.
Result
Camera
Raspberry Pi HQ Camera (C/CS Mount)
Sony IMX477
Sensor
7.56 mm × 5.48 mm
Diagonal: 9.34 mm
Effective focal length
1.70 mm
Projection
equisolid
Resolution
4056 × 3040 px
Field of view width
–
Field of view height
214.6°
Field of view diagonal
–
AllSky circle for 180° sky
4.81 mm
approx. 2624 px
Does the full 180° circle fit on the sensor?
Yes
Crop: 0.0 %
Usage of short sensor side
87.8 %
Camera price
–
Lens price
–
Lens data from library
Focal length (mm): 1.85 mm
Advertised FOV: 185°
Lens MP class: 12 MP
Max sensor format: 1/1.8
Preview
Sensor Preview: sky circle on sensor area
The preview shows the sensor area as a rectangle and the projected sky circle as a circle. If the circle is cut by the border, the combination is too small for a full 180° AllSky circle.
Was this tool helpful?

If this tool helped you choose a setup, you are welcome to support the AllSkyKamera project with a small donation.

Support via PayPal More ways to support
Some shop links may be affiliate links. The price stays the same for you, but the project may receive support.
Calculation notes
  • For the full AllSky circle it is assumed that the zenith is at the image center and the horizon at 90°.
  • The calculation strongly depends on the lens projection model.
  • The MP rating of a lens does not affect the image circle directly, but rather the achievable image sharpness.
  • Price and shop information are meant as guidance and may change.
Projection models
Type Description Formula
equidistant Equidistant fisheye r = f * theta
equisolid Equisolid fisheye r = 2f * sin(theta/2)
orthographic Orthographic fisheye r = f * sin(theta)
stereographic Stereographic fisheye r = 2f * tan(theta/2)
rectilinear Rectilinear r = f * tan(theta)