Havoc
25-Nov-2018, 09:06
I was looking for a "very light" 4x5 because I don't take my Wista along much because of the weight. Also my shoulders are giving me trouble so that was a second reason. So I started a thread here and got a few ideas but often the cameras proposed ticked some boxes but not all. http://www.largeformatphotography.info/forum/showthread.php?148562-Very-light-4x5-camera-with-125mm-lens
So I tought about making something myself. But before going too ambitious I decided to adapt make a first build based on my 4x5 pinhole http://www.largeformatphotography.info/forum/showthread.php?136967-LF-Pinhole-design-and-building&p=1442479&viewfull=1#post1442479 This pinhole was made with the idea to use a Fujinon SWD 75 on it but this never happened.
The goal was to make a lenscone for a Fujinon W 125/.6 so it sits at the hyperfocal distance for f/16 (or higher). This would give a dof from about 6 meters to infinity. First mounted the lens on the Wista, measured out the hyperfocal distance of 14 meters and focussed. Next with a film holder and lens removed I measured from the front of the lensboard to the film: 121.7mm.
Went to the shop and turned an aluminium lenscone. More chips than result but here it is:
http://users.skynet.be/sb262617/forum_foto/diy_4x5/diy_4x5_1_sm.jpg
This weighs 1.5 kg incl lens, filmholder and tripod adapter. Or about half of the Wista without lens and without filmholder. Still have to paint the inside black.
So I tought about making something myself. But before going too ambitious I decided to adapt make a first build based on my 4x5 pinhole http://www.largeformatphotography.info/forum/showthread.php?136967-LF-Pinhole-design-and-building&p=1442479&viewfull=1#post1442479 This pinhole was made with the idea to use a Fujinon SWD 75 on it but this never happened.
The goal was to make a lenscone for a Fujinon W 125/.6 so it sits at the hyperfocal distance for f/16 (or higher). This would give a dof from about 6 meters to infinity. First mounted the lens on the Wista, measured out the hyperfocal distance of 14 meters and focussed. Next with a film holder and lens removed I measured from the front of the lensboard to the film: 121.7mm.
Went to the shop and turned an aluminium lenscone. More chips than result but here it is:
http://users.skynet.be/sb262617/forum_foto/diy_4x5/diy_4x5_1_sm.jpg
This weighs 1.5 kg incl lens, filmholder and tripod adapter. Or about half of the Wista without lens and without filmholder. Still have to paint the inside black.