Drawing & design
Fisheye Perspective Grid
Print a curvilinear construction guide for fisheye style sketches. Two perpendicular families of arcs fill a circular field, helping you plan exaggerated space without mistaking it for a regular square or radial grid.
Understanding the layout
This is a five point style drawing construction based on circular arc families. Curved guides connect opposite parts of the circular frame, while the horizontal and vertical center directions remain easy to identify. It is not a calibrated model of every fisheye lens. Different optical projections map directions differently, so a hand drawing guide should not be used as a camera correction profile.
Using the sheet
Start with the central subject and a few simple forms. Follow nearby arc directions to suggest how edges bend toward the boundary. Keep the construction light and leave room for the subject rather than tracing the entire net. Compare the result with an ordinary perspective sketch to see how curving the directional guides changes the apparent space.
Choosing the settings
Paper size determines the available circular field. Orientation changes its position on the sheet but preserves circular proportions. The two arc families are a defined construction rather than an adjustable lens specification. Use larger paper when the sketch needs detailed marks near the rim, where the guides become visually denser.
A practical example
Choose A4 and download the SVG. Identify the circular border and its two straight center axes. Pick a curved horizontal guide and a curved vertical guide to outline a small form near the edge. Compare those directions with the almost straight guides near the center.
Before you print
This page does not undistort photographs, estimate lens focal length or calculate a particular optical projection. It supplies blank drawing guides. The construction is intended for illustration, not surveying or camera calibration.
Printing and file format help · Check your print scale
Common question
Can I use this to correct an actual fisheye photo?
No. Photograph correction requires the lens projection and calibration data. This is an artistic construction grid.
A Printable Paper Lab guide. How these tools and guides are made.