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5

I am assuming that if I use a shutter of a smaller diameter than the lens, the properties of the lens will change (for example, it will become less fast), because of the smaller aperture ring behind it? That is not necessarily the case. The physical size of the aperture is (almost?) never the same size as the objective lens element; because its physical ...


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This might be coming in a little late but what i do is 2 things first i spray paint very thin a matte clear then i take white school glue and add a thin layer of that. Let it dry and press it flat if needed. The spray paint is used to keep the paper from cockling when the glue is added mostly so you can leave that out if needed. Thinning out the glue with a ...


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A hat is the stylish photographer’s traditional front of lens shutter (and lens shade) though a press fit lens cap with a handhold in the center provides better control. Of course low sensitivity film/sensor and narrow apertures are needed when photographing in bright light due to the slow shutter speed. Packard shutters are a pneumatic alternative that can ...


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Some woods, over days, lighten and darken after exposure to sun. I notice it on lumber deliveries, especially cedar. I've been tempted to set a pinhole camera, with board as target of a scene, and wait.


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It depends. LCD in LCD projectors point towards the screen type, not the light source. Most common LCD projectors still use gas discharge lamps. These indeed produce enough UV light to expose the cyanotype. These projectors usually take a minute or so to reach full brightness after turning on. If you have a projector with an LED as light source, UV light ...


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