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network profile
| bio | website | pfarrell.com |
|---|---|---|
| location | outside Washington DC | |
| age | 62 | |
| visits | member for | 1 year, 3 months |
| seen | 10 hours ago | |
| stats | profile views | 148 |
Programming since punched cards
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Dec 22 |
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How does the cable release work without battery? They aren't cable releases anymore. They are shutter release switches. Its just a switch. Has two positions, one for auto-focus when you press half way, and the second to shoot. Just like the on-body shutter switch. |
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Dec 22 |
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How does the cable release work without battery? More specifically, the shutter release button is powered by the battery inside the body of the camera. All digital cameras have at least one battery. |
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Dec 19 |
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Why are medium format cameras used primarily in good lighting conditions? If you shoot college or pro American football on the sidelines, it is only a matter of time before you are shooting in one direction when a huge lineman or linebacker runs into you from the other. You will get hurt, and you will hurt your camera. You don't want replacing the equipment to cost more than your house. |
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Dec 17 |
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Which lens serves best as the only lens on a cropped body for a beginner: the 40mm f2.8 or 50mm f1.8? @michael, I don't know what you are arguing. The Rebels, even the ancient Rebel XT has manual controls. They are not as easy to use as on my 50D, but they exist. The T3i and T4i are much nicer cameras than the 40D. All IMHO, YMMV, etc. |
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Dec 17 |
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Which lens serves best as the only lens on a cropped body for a beginner: the 40mm f2.8 or 50mm f1.8? Ive got a 50mm F1.4 (a nicer lens than the F1.8 for not that much more money). Its long for a "normal" lens with the APS-C sensor. For a Canon, the 50mm equiv is more like 31mm. The 40mm STM is closer to what you'd expect. Its one of Canon's newest lenses and its inexpensive. I'd go 40mm |
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Dec 14 |
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What does different focal length offer me? Wow, didn't know that. auto-focus would make it more suitable. Its still an expensive lens. |
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Dec 13 |
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How do I go about editing the metadata of a PNG file? I may be misreading it, but it sounds to me that @liz is not adding metadata to the PNG files at all. Rather converting to some other format that handles meta data better, and using that. Is this what you are really doing? |
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Dec 12 |
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How do I use Google Maps GPS data in Adobe Bridge/Photoshop? For nearly all photo tagging purposes, the decimal fractions of a second of angle can be skipped. -79°4'4.1512"W is not very far from -79°4'4"W |
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Dec 9 |
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How to expose film negative without an enlarger? My mom shot a huge number of family snapshots on a Brownie, it used 120 film and prints were made as contact prints. While they were very cheap, I think they were effectively about 1/30 @ F11 |
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Dec 8 |
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Is there a slide/negative reader with TV output? Do you literally mean connecting an ancient Carousel ring to a TV? Or do you mean you want to make a nice slide show on your TV? What kind of TV do you want to connect to? If its an old, CRT type, the images don't have to be very good since they are such low resolution devices. If you mean a modern HDTV with HDMI input, all you need to drive it is an HDMI cable to connect to your computer or even to a computer tablet. |
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Dec 2 |
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How does connecting the camera to a laptop help in photography? Is there a similar program to NKRemote for Canon? |
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Nov 29 |
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Tethered capture much slower with LR4.2 (64bit) compared to DPP The computer has 8 gig of RAM. The 50D has a 15 mb sensor. So one could hold roughly 500 photos in ram before running out of memory. Of course, it would not do that, as the whole point of tethering is to store the photos to the computer's disk. It should be able to store at least 100 photos in memory and buffer the images to the disk. |
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Nov 29 |
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What is the most effective way to get soft light from hotshoe flash indoors? While a reflector can help, photos are interesting when there is contrast between light and shadow. To get interesting shadows, you must move the flash off camera. You can do it with a $50 kit of stand, cord and umbrella. |
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Nov 24 |
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PC flash sync adapter for canon 550ex Not at all. Just talk to the folks at flashzebra.com |
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Nov 19 |
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How can I use a flash indoors with a really high roof? Yes, a diffusion dome simple bounces one to two stops of light off the walls and ceiling. It does not change the distance between the center of axis of the lens and the center of axis of the strobe. If you want DMV style photos, have the flash on-axis. I strongly suggest reading the strobist 101 series on strobist.com |
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Nov 15 |
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Canon 40D or 5D? Its two years old, talking about cameras that were non-current even back then. Both cameras have been replaced twice. Close it. |
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Nov 14 |
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What is the bill of materials for a typical single lens reflex (or mirror-less) camera? Matt, of course, the BoM does not include NRE. But the concept is widely used, see iSupply about iPhone, iPad, and various other smartphone things. Usually, the retail price is 5x to 10x the BoM cost. There can be a lot of NREs to cover. |
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Nov 14 |
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What is the bill of materials for a typical single lens reflex (or mirror-less) camera? @Matt, no, the standard BoM is the price of the parts, quantity one. Not the cost of the non-recurring-engineering (NRE) that goes into designing how the parts connect. No manufacturer discloses the BoM, but for things like iPads and smartphones, iSupply and others do a teardown and publish that. |
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Nov 7 |
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Can I repair a cracked internal flash in a Nikon D7000? The very high voltage capacitor in all flashes can kill you. And it remains charged for a very long time after you turn the flash off. Do not attempt this unless you are experienced in electronic repair. |
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Nov 5 |
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Do I need high end body to use telephoto lens? I'm not convinced that the "more reach" argument is a good one to say to folks like @ssk. A lens doesn't know what body its mounted on. Sure, on a crop body, the image will fill more of the frame, but that's because its pre-cropped. |
