Pinhole photography might be one of the most primitive forms of photography, but that doesn't mean it can't be improved with the help of a little innovation. Pinhole camera company ONDU is back at it again with a new collection of third-generation pinhole cameras, including 135, 120, medium format, and large format options.

The pinhole camera collection, which consists of 19 individual cameras and is officially named the ONDU Mark III series, manages to pack in a slew of features and add-ons to take pinhole photography to the next level.

The cameras are constructed of precision milled parts, the most important of which are CNC milled. "The parts where most wear and tear happen are made either of CNC milled aluminium or steel," says ONDU on its campaign page. The overall build quality has improved and the winding knobs in particular have become more robust and easier to turn.

The shutter on the ONDU Mark III series cameras has been completely redesigned as well. Deemed "the perfect shutter" by ONDU, the magnetic shutter has a smooth, shake-free sliding mechanism that makes it easy to capture quick exposures when needed. It even has a built-in clicking sound "for fidgeting sake." A secondary shutter has also been added to the 120 format version so you can use the 135 converter kit to shoot 35mm film inside the medium format version, complete with sprocket exposure.

The most impressive feature is the integrated filter option. ONDU said it was one of the most requested features from past ONDU users and now it's available. By integrating magnets inside the camera itself, ONDU has managed to create a simple snap-on filter that works with ND filters, IR film and color filters for black and white photography.

As previously mentioned, there are 19 different cameras that are part of the ONDU Mark III series. Pledges start at $98 for the basic 135 pocket version and go up to $250 for the incredible 6x17 120 format camera. To find out more information and to make your pledge, head on over to the Kickstarter campaign. There are 25 days to go and the campaign has already more than doubled its $20,000 goal.

Disclaimer: Remember to do your research with any crowdfunding project. DPReview does its best to share only the projects that look legitimate and come from reliable creators, but as with any crowdfunded campaign, there's always the risk of the product or service never coming to fruition.