| depth of field
You don't see those mysterious markings on lenses much anymore.
Those mysterious markings at the base of the lens show the area that is in focus. I use them all the time.
THE HYPERFOCAL DISTANCE METHOD OF FOCUSING
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The use of the Hyperfocal Distance of a lens is a most useful focusing method for the photographer to learn. Unfortunately, in this day of computer controlled cameras, it is a dying technique. You might ask why this is an important technique to learn, and that?s a fair question. To answer it, let me summarize the advantages and disadvantages of the method.
Advantages:
1. It allows you to maximize the depth of field of the lens. This can be especially useful in photographing scenics.
2. It is extremely fast, as it allows you to have the camera prefocused to cover a wide range of subject distances. It is much faster than an autofocus camera can operate in most instances.
3. Because of the above, it is perhaps the best method to use for candids, and street photography. You can raise the prefocused camera to your eye and shoot, and lower the camera before anyone is aware of what you are doing.
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But, what to do when your new lens doesn't have these magical markings? Fear not...
DOFMaster - DEPTH OF FIELD CALCULATORS
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Lenses used to have easy-to-use depth of field scales. Those scales were great tools. Unfortunately, vendors rarely put scales on new lenses. Until now, you've had to use confusing tables of numbers for depth of field calculations.
Use DOFMaster to print scales that work in the same manner as depth of field scales on lenses. Quickly read the near focus distance, far focus distance, and hyperfocal distance. Print and assemble calculators to take into the field.
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thanks to DANGEROUSMETA! |
