Photographs by Frank

23 June 2019

Experiments with Slits

Filed under: Monadnock Region,Summer,The "New" Yard & Environs — Tags: — Frank @ 7:30 PM

We had nine cords of wood delivered on Thursday. Thus, these days, I spend my mornings stacking firewood. I am trying to do about a cord each day.

Afternoons, however, are for experiments.

These photos were made by replacing the lens in my camera obscura with a slit made by placing two razor blades very close together. The slit acts similarly to a pinhole in forming an image, except that the image is stretched out along the length of the slit. I have placed the slit on the camera (with tape, nothing fancy!) at a roughly forty-five degree angle.

I took my experiment for a walk around the yard just to “get a feel” of what it might do,

The viewfinder of the digital camera is very dim; I can often see only a couple of the brightest spots in the scene. Thus framing is imprecise.

By cranking up the ISO as high as it goes (3200 on my little Nikon 1 V1), I can get a reasonable shutter speed; 1/4th to 1/20 of a second. I deal with the horrible noise this causes in the computer, but since nothing is really sharp to begin with heavy noise reduction seems to work fine.

I will be as interested as anyone else to see where this experiment leads!

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1 Comment

  1. So what brought on this technique??? i know you really don’t use razor blades so this would be one unique use for them, right?

    i will admit the end results are certainly creative. i don’t think you would need to be concerned about sharpness with these.

    Continue experimenting, i for one am enjoying it.

    Comment by Joe Kennedy — 23 June 2019 @ 9:04 PM

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