In a previous post, I shared how I converted my Afghan Box Camera into a slide projector. The principle of the slide projector involves putting a light source at the back whose light passes through some condenser lens. The light then goes through the slide and finally pass the projector lens and be projected big on the projector screen.
I have been shooting 4 x 5 color transparencies or commonly known as color slide film for many years but the best that I could enjoy them was to put them on the light table and viewing them through a loupe. Unlike my 35mm and 120 slides, I have never seen them projected big simply it is not easy to locate a 4×5 slide projector.
For the last few years, I tried searching online on how to do it yourself (DIY) and build a 4x 5 slide projector but no one seems to have made them before. There are commercially produced 4×5 slide projectors although I have never seen one in real life. I have not even seen them on the used market on eBay before but even if they are available they are going to cost a lot and even more to ship.
A few years ago I built an ultra-large format camera that is 24 inches by 24 inches. While it was a pretty huge camera, it was a simple build it was just two square standards, one for the front and one from the back which was connected by a big bellow.
There was no support base or focusing rails and I just support the two standards by using two tripods so it was not the most stable camera. After a while, I dismantled the whole setup and recycled the wood and the bellows so I thought that would be the end of my Ultra Large Format (ULF) camera building adventures but who knows a while back, my friend passed me a big lens and it got me thinking of rebuilding an ultra-large-format camera again.