The optimal pinhole size depends on the wavelength of the light, meaning that if we shoot with daylight, our pinhole will never be as good as if we used monochromatic light and a corresponding hole diameter.
Has anybody tried, e.g. using a yellow or orange filter? Was it better?
On paper, your idea has potential. But in practice, I don't think you'd see a measurable difference when using filters. The only time I have used a yellow filter with pinhole work is when I make paper negatives, using Multigrade paper. The yellow filter reduces contrast of the image, making it more "full scale", which is very useful when making paper negatives.
With a panchromatic film, however, filters (yellow, orange, red) will boost contrast of course, and that may give an impression off increased sharpness.
All that said, "better" is in the eye of the photographer. If you're looking to optimize image resolution/sharpness, then work with an image size as large as you can. 8x10 pinhole negatives can be remarkably "high-res".
Oh boy! Don't use colour filters like Red, Green or Blue for monochromatic pinhole. It's does something seriously weird to the images
Echo Patrick's comment. Super clean filters for pinhole. They see everything.
This is a travesty that goes beyond any suggestion, good or bad, as to what filters should be used.
The pic you posted, a trichrome, is stirling proof that creativity brings rewards. I love it!
The purpose of pinhole photography — in and of itself an arcane, unconventional form of capturing the world around us, is to unleash one's dormant creativity
The purpose of pinhole photography — in and of itself an arcane, unconventional form of capturing the world around us, is to unleash one's dormant creativity — anything goes, and there is no need to adhere to textbook methodology for using or exposing film, filters or exposure, other than grasping the basics so that one doesn't come back with a blank negative! Scarce are the rules that one (even me!) apply to pinhole photography, whether I'm using colour or B&W — I enjoy the wild, wacky and wasted as a change from the clinical precision of film and some digital photography I am involved in.
Something else that irks me is that there are people who are striving to make pinhole photographs as sharp and as clearly defined as possible, dammit — think LF pinhole cameras especially; since when did pinhole photographs have to be razor sharp to the point where they no longer exhibit the characteristics so well recognised of a pinhole camera? This is a travesty that goes beyond any suggestion, good or bad, as to what filters should be used.
The pic you posted, a trichrome, is stirling proof that creativity brings rewards. I love it!
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