Has anyone tried this new old technique.
There is an outfit that will drill holes in you camera cap with a laser.
Has anyone tried this new old technique.
There is an outfit that will drill holes in you camera cap with a laser.
And if you don't want to drill your lens cap I'm pretty sure Lensbaby has a pinhole objective or pinhole addition to their lens.
Never tried it and I'm not really thinking of drilling a hole in my lens-cap [:P]
I know a guy who had an extra body cap that he drilled with a 1/4"(or something like that) bit. He taped tin foil over the whole and then actually poked a whole in the tin foil with a pin to make his pin hole camera.
What effects do the Pin holes have?? [*-)]
Originally Posted by TakahiroW4047
Ridiculously deep DOF.
Take you widest angle lens set it to the highest f/stop. Then look at the lens and push the DOF preview button. Look how small the aperture blades close down to. Then take a nice wide open scenic shot and look how much of the shot is in focus. Now imagine how much more would be in focus with an opening the size of a pin.
I'm not sure what the angle of view would be, but everything will be in focus.
Ohh I see. Must be quite hard to actually drill dead center. Everything would be in focus, but I'm assuming landscape would benefit the most since there will be some severe motion blur otherwise with such slow shutter speeds?
Angle of view will be determined in the same way as for a lens - by the focal length (which in this case is the distance from the pinhole to the sensor).
Everything will be in focus, yes, but very, very soft due to diffraction.
The diffraction limited apertures (DLA) for dSLRs range from ~f/13 for older FF/1.3x cameras with relatively low megapixel counts (5D, 1DII) down to ~f/7 for high-megapixel APS-C sensors (7D, T2i). Even pinhole images on 35mm film suffer from diffraction - theDLA for fine-grained slide film is ~f/16.
Obviously, f-number for a pinhole will depend on the diameter of the hole and distance from the sensor. But for comparison, the Lensbaby Pinhole Optic is f/177 - severely diffraction-limited.
You can have a look at many, many pinhole pictures in the galleries as http://www.pinholeday.org/.
Wonder what would happen if we had more than one hole at differecnt locations?
Multiple, overlapping images (e.g. two pinholes would be like 'double vision').
Angle of view will be determined in the same way as for a lens - by the focal length (which in this case is the distance from the pinhole to the sensor).
Everything will be in focus, yes, but very, very soft due to diffraction.
Precisely why I said in focus and didn't say sharp.
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