Photography: What, How, Why Copyright © 2023 by Maria Politarhos and Randy Matusow is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

Notice how the size of the leaves in the bird feeder gets much bigger while the size of the windows directly behind the feeder remains about the same. The depth seems to increase because the camera was brought closer to the subject.

Depth offield photography

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While it’s easy to see how microscopy can be used professionally, especially in the sciences, to make discoveries and learn more in-depth about certain subjects, microscopy can also be a hobby. Many people simply enjoy viewing life through a microscope. While they don’t do this professionally, they use their free time to study the world around them.

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Depth of Field (DoF) refers to the distance between the closest and farthest objects that appears acceptably sharp in a photograph.

There are many, many more ways that microscopes have entered our lives to make them better in some way. And the uses for them grow every day.

The most basic  compound microscopes have two lenses, one that is the eyepiece you look through, and one that focuses on the subject matter, called the objective lens. This idea is what was used when the first microscope was invented.

These three photographs above are all focused on the same subject (bird feeder) and were taken with the same F stop and shutter speed, the only difference is the distance of the camera from the subject being photographed. The photographer kept walking closer to the subject (bird feeder).

The larger the opening of the lens (small F Stop number) the less the Depth of Field. Only the person is sharp when using F 1.4 and the background appears blurred/out of focus.

Notice how the size of the leaves in the planter gets much bigger while the size of the round windows on the door remains about the same. The depth seems to increase because the camera was brought closer to the subject.

Depth offield definition microscope

The first microscope is believed to have been made by the father and son team of Hans and Zacharias Janssen. While this was an important invention, and the development of the microscope ties directly to the telescope, the microscope wasn’t very useful initially.

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Depth offield examples

Put simply, a microscope is a tool that enhances the image of small objects so they can be more easily seen. But it’s not the only device that does this. A magnifying lens also makes images or items appear larger. Magnifying glasses are considered simple microscopes because they have only one lens.

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Depth offield calculator

Depth of Field (DOF) is the range of distance in a photo that appears to be in sharp focus ... Depth of field is a creative decision and one of your most ...

Science can thank the invention of the microscope for many of its findings and for the research that’s done today, but what is a microscope, and what is a microscope used for?

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Shallowdepth offield photography

Microscopes are used in a wide variety of professions and hobbies today. At their most basic level, microscopes are used to magnify objects and make them easier to view or observe. This makes them especially useful in many professional areas, including:

Shallowdepth offield

When you focus your lens on a subject (the lamp post in our example) the depth of field will change depending on the F stop you are using.

Depth offield photography examples

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The smallest opening (large F stop number) the greater the Depth of Field. The person and the background are sharp when using F 22.

What makes a compound microscope different is that it uses more than one lens. By refracting light off an image through one lens and viewing it through another, refraction occurs, and you can see the item more clearly. Arranging the lenses in different configurations changes how you can bend the light and allows you to see objects differently.

Depth offocus

Microscopy is the field of study where you use microscopes. There are four main branches of microscopy that a professional can consider going into.

Just as in the previous example, the closer the subject is to the camera, the shallower the Depth of Field.  These three photographs are all focused on the same subject (planter-box in the middle of the hallway) and were taken with the same F stop and shutter speed, the only difference is the distance of the camera from the subject being photographed. The photographer kept walking closer to the subject (planter box).

Microscopes have a wide price range, but lower entry-level prices make them accessible to everyone. Whether you’re interested in having a microscope to try for fun, you want one for your hobby, or it’s a part of your work, there are many affordable options to choose from. At New York Microscope, there’s a huge number of microscopes that you can explore and lots of useful information to get you started in microscopy.

Microscopes are not only good for professional use, but they’ve also become quite popular for use at home. The invention of microscope glasses, like your dentist uses, has greatly benefited many hobbyists. Some hobbies that make the most of microscopes include:

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Early telescopes were interesting and prompted more inventions but were not very reliable and didn’t magnify enough for major discoveries. Image blurring, which was called spherical aberration, and color separation or chromatic aberration were large problems until the 1830s, when Joseph Jackson Lister and William Tulley invented microscopes that corrected these issues. The result was an improved microscope that became widely used for scientific research, especially medical and biological studies.

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