>>3348449>>3348450FYI, while many people state that pinholes have near infinite DOF, that is not true. The pinhole in
>>3348415 has a DOF from 8.4 inches (213mm) to infinity while the one in
>>3348414 has a DOF from 1.24 feet (378mm) to infinity. A pinhole, flat against the mounting flange (46.5mm focal distance) with a hole diameter of 0.285mm, has an F-stop of f/160 and a DOF range of 1.84 feet (561mm )to infinity. That means if your pinhole is flush against an F-mount of a Nikon camera you should keep it 1.84+ feet away from whatever it is you are taking a photo of or it will be pretty blurry. At 2.37 feet it will be pretty much as good as it will get for hyperfocal distance. Though, for most people the difference is blurry and fuzzy blurry.
Another tip is, close objects will be blurrier than distant objects. This is because the light is coming into the hole at sharper angles when something is close and more parallel angles when far away. Trying to do macro/close-up shots with a pinhole usually ends in a blurry mess.
Pinhole design is a neat learning tool, but a difficult art tool to use correctly. The best thing you can do is to use a tripod with them, if you want clear shots. The circles of confusion are rather large, hence the blurriness, so downsizing the images makes them look a whole lot better than full size ever does.
>some of my reposted pinhole pics (I think it is the 20mm f/106; 0.1708mm dia. invasive pinhole cap.) 