Chatter Teeth

chatter teeth

A little character study I did for the scavenger hunt for the clue “jaws.” I really like this photo…

From a technical perspective, it’s a 20 second exposure like the Twizzler piece from earlier in the week. The camera was less than a foot away from the subject, so it’s another Quantaray close-up filter piece. Here, the depth of focus is easier to see from front to back, so I really wanted that tiny aperture (at f22 on a 50mm lens, that’s what… 0.227 cm? Less than 1/8 of an inch.

What was fun for me was trying to get the gearbox tack sharp without everything else being blown so soft you couldn’t tell what I was shooting.

Would it be interesting to see this same image, but with the aperture wide open? To compare how much the aperture impacts the DOF?

Comments

  1. It is a nice photo but I don’t know when that device would be useful.

  2. TJ McDowell says:

    Do you find that long exposures give your pictures a different look even when there’s no motion in the picture? I’ve noticed that on the other end, I can usually tell when a picture is taken at a high shutter speed because it tends to look crisp, but I wasn’t sure how a really slow shutter would change the look of an image.

  3. Hard to say – but here’s what the same subject looks like with the aperture wide open, thereby allowing a much shorter exposure:

    The shutter in the original image is open 1,200 times longer than the second image. The second image has a shutter that opens more than 150x larger than the first… I think it makes for interesting comparisons between the two extremes, but really the big difference is how fast the focus drops off. In the second image, only a small portion of the image is in focus.

    Normally, I shoot with the shutter as far open as I can get it… but in the first image, it was as small as I could get it. The only way this works is because I had a tripod. With the tripod being set on a wooden floor, I hardly breathed while the shutter was open!

    I think this lens shoots sharpest a little bit more wide open. Considering the less-than-ideal light I had, I could have shot the second image around f/5 and had a VERY sharp image, but only somewhat less shallow depth of field.

    These shots are still life shots. I tried to get some of carbonation in a glass recently, and it didn’t work at all. It really only works with inanimate objects.

  4. There’s a really big difference between the photo in the article and the one in the comment. Amazing the difference that a few seconds make.

  5. I agree with Cookie- they look like two different sets of teeth. I like both, but the first photo is very up close and personal. I see all the detail and I like it. Nice!

  6. SeanDawson says:

    I love the picture. It is so cute. I am a little intrigue about the design. However, it is really nice.

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