The difference is the lens admits much more light (and suffers less with diffraction, as we will see). The pinhole does not need to be focused, since (ideally) it only admits a single ray of light for each point of the scene. A lens needs to be focused because the angle of light rays emanating from a point will change accordingly to the distance.

A pinhole camera is a simple camera without a lens but with a tiny aperture (the so-called pinhole)—effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura effect.

A lens focuses that spread-out light, corralling it into a crisp image on your retina. And after a little excitation of light-sensitive nerves and interpretation from your brain, you see. But wait-- when we look at an object, the background and foreground are usually blurry because a lens can only focus light coming from one distance away.

Homogenous coordinates allow linear system for projection equations. Lenses make pinhole model practical. Parameters (focal length, aperture, lens diameter,...) affect image obtained.

Digital or analog, regardless of format, the pinhole camera and modern pinhole "lens" (they aren't really lenses because they have no optics) make for a great way to experience a different and fun side of photography. With several pinholes on the market, let's look at what you can expect from the different options.

2020年10月21日 · As my two Isolettes are basically near identical, I thought it would be fun to shoot them at the same time and compare the results afterward. Hence the title “lens v pinhole.” For this fun experiment I wanted a reliable film and as I have a fridge full of Portra 400, this seemed the obvious choice.

Pinhole vs. lens •A lens focuses rays radiating from an object point onto a single point on a film plane •Gather more light, while keeping focus; make pinhole perspective projection practical

Most modern cameras use a lens to focus light onto the view plane (i.e., the sensory surface). This is done so that one can capture enough light in a sufficiently short period of time that the objects do not move appreciably, and the image is bright enough to show significant detail over a wide range of intensities and contrasts.

The depth of field is less for a lens camera than for a pinhole. With one big hole, the depth of field decreases, but the intensity, of what is now called an image, increases. To alleviate this, the lens has to be moved away from the camera itself, to produce a focused image of …

During the class I decided I wanted to compare the quality of images taken with a pinhole to those taken with a lens. The following images were take with a 150mm f/5.6 lens and a pinhole optimized for 150mm focal length.