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| bio | website | embedinc.com/olin |
|---|---|---|
| location | Littleton, Massachusetts | |
| age | 56 | |
| visits | member for | 1 year, 5 months |
| seen | yesterday | |
| stats | profile views | 227 |
Electrical engineering consultant specializing in microcontrollers and the circuitry around them. Master of engineering in EE from Rensselaer Polytechnic Institute in 1980.
We are certified Microchip design partners, and have been in the top catagory consistantly since around 2000. Various free downloads related to developing PIC firmware and other things are available at http://www.embedinc.com/pic/dload.htm.
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How to shoot extreme macro shot of an image formed on a water droplet? @Stan: I don't understand what you are trying to say. A spherical lens would cause something you could call "bullseye" didstortion, but the picture above doesn't exhibit that, or at least not anywhere near enough of that. The concept is imaginative, but the picture is not real. That's not what you'd see if you were to look thru a water drop like that. |
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May 20 |
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How to shoot extreme macro shot of an image formed on a water droplet? I suspect that this picture isn't real at all. The distortion that a spherical lens like the water drop would cause just doesn't look right. It is probably a real picture of a water drop haning from the end of a leaf, then flipped upside down. The supposed refracted image of the background was then composited in later. |
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May 11 |
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Circular Polarization and Passive autofocus @mattdm: I was trying to describe the relevant effect, which is that light no longer has a single linear polarization. I have edited the answer to refer to your comment. |
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May 11 |
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Circular Polarization and Passive autofocus added 94 characters in body |
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May 11 |
answered | Circular Polarization and Passive autofocus |
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May 9 |
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Is there any reason to place polarizer filter before ND graduated one? @garik: The point was not to leave the erroneous impression that a little more than 1 f-stop was somehow inherent to how polarizers work. It's not. Anything more than 1 f-stop is only because we are unable to make a perfect polarizer. Good polarizers actually get pretty close, and in the future may get so close that the difference is irrelevant for most cases. |
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May 8 |
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Is there any reason to place polarizer filter before ND graduated one? @garik: A perfect ideal polarizer blocks half the light (1 stop). Real ones block a little more light only to the extent that current technology can't produce a idea polarizer. |
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May 6 |
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Best camera backpack with these criteria? @Russell: That picture reminds me of one of those diagrams from grade school science or math class: Which of these 9 objects doesn't fit here? :-) |
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May 6 |
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Best camera backpack with these criteria? @Russell: I don't like being on the trail in the dark and rain. The D3S is supposedly somewhat weather sealed, but I try not to put it to the test. I'm not sure about the lenses either. Best not to push it. I've been caught out too late a few times, and it can be surprisingly hard to follow anything that isn't a really obvious trail in daylight, even when you have a light with you. Actually sometimes a light makes it worse. A full moon is often better than a headlamp, although arranging one on demand is above my pay grade. |
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May 6 |
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Best camera backpack with these criteria? I took this to be a general question about how to bring camera gear hiking, not about specific models. If interpreted that way, it is not a shopping question. Of course it would be helpful if the OP edited the question to make this more clear. |
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May 6 |
answered | Best camera backpack with these criteria? |
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May 1 |
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How were these portrait photos edited to get this look? It seems to me that these pictures do have two things in common, which is saturate cranked down and the white ballance off towards the yellow-orange-red side. |
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Apr 30 |
answered | What do you take on a hike as a landscape photographer? |
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Apr 28 |
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Why is my Nikon 18-200 lens not focusing at higher focal lengths? @AJ He: Sorry to hear that. I went to school in Troy, and we used to say that New York City was the butt end of the universe and Troy 120 miles upriver (slightly toned down to not get deleted here). To be fair, there are actually a few nice sections of Troy, but not anywhere students could afford the rent. One summer I lived on 8th street, which is where the police were afraid to get out of their cruiser and would only talk to people outside thru the slit formed by rolling down the windown one inch. |
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Mar 29 |
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What is the best lens for taking photos of birds? When it comes to birds, too long is never enough. |
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Mar 25 |
answered | Will LEDs work with a point & shoot camera for light booth digital photography? |
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Mar 25 |
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How to adjust RAW photos from underwater? Find something in one of the pictures you think should be white and go from there. Unfortunately, the white ballance will vary with depth. Think of each meter of water as a colored filter on the lens. The deeper the water, the more of the same filters are effectively stacked on your lens. |
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Mar 17 |
answered | Why is this aerial picture of an airplane in flight not blurry? |
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Mar 15 |
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Effects used on Abhranil Das's “Mountains on the Horizon” picture of the week? Sorry for unaccepting your answer, but only the photographer himself can provide the definative answer. |
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Mar 15 |
accepted | Effects used on Abhranil Das's “Mountains on the Horizon” picture of the week? |
