Red and Blue

by Gordon

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0

The effect you are seeing is called Bokeh. It is how a lens renders out of focus highlights. While glass aberrations and coatings play a part, the blurred highlights tend to take on the shape of the aperture. They are, after all, basically the inverse of a shadow cast by the aperture into the film or sensor. Since the effect is heightened by shallow depth ...


6

A few thoughts. the depth of focus is quite small: this is shot with a low f-number (probably < 4) different drops have different degrees of "out of focus" (there are some drops that look like they are almost in focus) many of the drops are not perfect circles Based on these three observations, I am concluding that not all the drops were the same ...


6

I've done similar through rain spotted windows before, so basically the way I would tackle this is with a sheet of clear glass, perhaps from a picture frame, treated with something like Rain-X so that water will bead and then spray it with some water. You could also probably use something like glycerin. Then, basically, shoot through the glass.


6

First definitions from dictionary.com: microscopic: so small as to be invisible or indistinct without the use of the microscope : microscopic organisms. Compare macroscopic. macroscopic: visible to the naked eye. Compare microscopic (def 1). The things we photograph with macro lenses are still large enough to be seen with the naked eye (roughly cm or inch ...


19

You are correct that the term "macro" means large scale (e.g. macroeconomics), however its use in photography is relative to microphotography, that is imaging using microscopes. The tradition definition of a macro lens is one that can achieve a 1:1 magnification, which means the image projected onto the recording medium is life size. So for a common APS-C ...


0

I just increased the DOF from 3.2 to 8 and all the halo just went away. Please note I did play around with increasing the radius setting but that didn't make a difference.



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