It is said that the Olympus XA2 is usually called the poor man's LCA. So I call my experiment camera here as poor man's Horizon. the angle of view is around 115 degrees, but you can make it wider of course!
Making your own pihnhole is quite easy. The instructions are almost similar to this except that you will use film box instead of matchbox and you have to curve the film inside it. Also, you’d want to reverse the film emulsion (redscale it) to make the winding smoother and the camera’s appearance will also look good.
In curving the film, you need to find a plastic bottle seen in picture #1 with a diameter around 45-50 mm then cut it vertically into half with 36.5 mm height (to fit it inside the film box – pic #2), lets call it part A. Cut two more with 5mm height each – pic #3, then attach both on the top and bottom of part A (you can use a transparent tape). It will be strong enough to hold the film. Make sure your film can easily slide through it – pic #4. Now attach part A to the inside of the box, and you are done!
Remember that the pinhole diameter should be 0.25mm with perfect round. as the f stop will be 140, please use exposure guide in pic #5 (sunny 16 rule).
*Note: This camera needs many improvements so please feel free to give suggestions or develop a better one and share it!