John Ruppert: Pumpkins (1999)

foto © Donovan Klotzbeacher

foto © Donovan Klotzbeacher

This subject presents a typical “near-far” challenge.

Technically it would be easy to have both pumpkins in sharp focus using a traditional view camera by simply tilting the front standard (lensboard) forward till both objects become sharp on the ground glass.  However, using a camera without such movements means the photographer has to rely on depth of field to give the illusion of sharpness.  In that case, one uses a smaller aperture and focuses about a third of the way from the front object to the rear object — thus favoring sharpness in the foreground object.

One could also focus on the foreground subject and “let go” of the background sharpness.  That is what I did.  Since I was using the zoom lens in a relatively wide-angle mode, I wasn’t too concerned about the background.  However, if the photo were printed large, close examination of the background would reveal that it is not truly sharp!

With modern digital cameras, one could also use a higher ISO rating which gives the possibility of using a smaller aperture and obtaining greater depth of field.  In retrospect, I ought to have done that.

The first exposure had speckles of sunlight on the foreground pumpkin.  A second exposure was made at a fleeting moment when the sunlight falling upon the pumpkin was obscured behind a cloud — thereby eliminating the distraction.  Consequently, I liked the second exposure the best and that is what is presented here.

f.l. = 34mm, aperture = f8, shutter = 1/80 sec., ISO = 100; Canon EF24-70mm 2.8 USM lens.

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This entry was posted in Agriculture, Earth, Flora, Grounds for Sculpture, Hamilton, New Jersey, SLR: Digital. Bookmark the permalink.

One Response to John Ruppert: Pumpkins (1999)

  1. Jean D. says:

    Ok, so now you are way over my head. That’s why I have a “point and shoot” camera! *G* It is, however, a fascinating study and, in a sense, a bit of an optical illusion when you start to really think about the focus/sharpness issues.

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