Digital Clamp
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 New UNI T Digital Clamp Multimeter UT208  US $82.99
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 New Uni T UT203 Current Digital Clamp Meter DC AC 400A US $38.88
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 UNIT UNI T Digital Clamp Meter Multimeter UT203 UT 203 US $29.99
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 Uni T UT203 Current Digital Clamp Meter DC AC 400A 930 US $24.99
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Why Using Different Camera Digital Lenses Is Key To Your Success
One of the main apparatus the photographer uses for perfect shots is his camera digital lenses. Different lenses are used for different situations. Whether you are closing in on a tight shot or telescoping a wide landscape, your lens is crucial.
The further away your subject, the shaker the focus gets. If you are shooting up close, you can zoom in and focus fairly easily, but for those long distance shots you must have a tele lens and a steady hand. The high magnification of zoom lenses accentuates the effects of camera shake.
Camera shake is inevitably the greatest cause for unfocused, long distance shots. When firing excellent distances, you must have the ability to steady your camera; even the dismal of the shutter switch will smear your own image. Here are a few ideas that may help.
Ideally, use a tripod. Setting your camera on a tripod gives it the stability it needs to focus on your subject and stay focused, and it will allow you to use slower shutter speeds. But your tripod must be on steady ground. If you're on shaky ground, tripods will transmit this motion.
Tripod-mounting collars attach the lens at the proper fulcrum to the tripod rather than the camera, when you use physically long lenses. You can also use a secondary support for the camera like Bogen's Long Lens Support. This telescoping brace attaches to most tripod legs with a universal clamp at one end and a swivel ball head for the camera at the other.
If don't have a tripod, try using something steady like a car or fencepost or your body. Rolling up a jacket or other item that you can brace your elbows on, place your arms closely towards your body, lens and camera balanced by the left had and arm, aim the camera slightly above the subject, take a deep breath, let the view drop to the proper composition while exhaling, and gently depress the shutter button.
Using this technique takes practice and a high resolution film and shutter speed. ISO 400 or higher should be used. This will allow you to use the higher shutter speed and minimize the effects of shake.
If you have better support-like a steady object-place your camera on top of it while shooting your image. This gives you the ability to use slower shutter speeds. The minimum shutter speed rule of thumb for hand-holding a long tele or zoom lens is this: Slowest safe shutter speed = 1 over the lens focal length.
For the serious on the go photographer, try using a monopod. Monopods are easy to carry and quick to set up. Your shutter speeds will have to be set on a higher speed, but it will enable you to get those long distance shots without much danger of image softening or camera shake, which would occur if you just were hand holding.
Practice in holding and focusing for long distance is essential. Your camera lens will definitely take your photography to a different level, but practice will keep that shaking hand from distorting your perfect image.
Where does the digital clamp meter use in the home instead of digital multi-meters ?
Where does the digital clamp meter use in the home instead of digital multi-meters ?
If so, then in what areas & in what purposes ?
whatever i know about them or the advantage of the clamp meter over multimeter that you easily measure the load of any particular device without stripping/cutting the wire .
Is there any other advantage of clamp meter over multimeter ?
what features should be present in a digital clamp meter ?
Whats their price as compared to digital multimeters ?
thanks
To use a clamp tester, you have to be able to separate the active and neutral wires of a circuit, so you can get the clamp around just 1 conductor, to read current. So in a home, the only place where they are separated and accessible, is in the meter box. I would suggest you don't monkey about in a meter box, unless you are positive of what you are doing.
The only advantage of a clamp tester over a multimeter is the ability to read current flow without having to break the circuit to insert a multimeter.
It is not very often, in a domestic situation, you need to measure current.
Some clamp testers can also measure DC currents, so can be handy for hobby use. But as hobby voltages are generally pretty low, there is no real problem using a multimeter instead.
Both clamp testers and multimeters come in cheap and expensive makes and models, you spend what you can afford, or get the most basic that does the desired job.
Grace Eco Pod case: Take your iPhone / iPod touch for a swim (TUAW)
Want a case for your iPhone or iPod touch that is not only waterproof, but
floats when dropped in water? Would shock resistance be an extra added bonus
for you? The Grace Digital Audio Eco Pod (US$49.99) case definitely fits the
bill if you need all of this protection and the ability to clamp it on a bike
as well.
While it's not the most svelte iPhone case at 1.75" thick x 4" wide x 6.75"
tall, the Eco Pod is probably the case you'd want your device wrapped in at
the beach, while camping, or on a long bike ride in challenging weather
conditions. In case you're wondering why it's so big, it's probably because
the Eco Pod is designed with a bit more room inside so you can also stuff your
credit card, driver's license, and some cash in there along with your iPhone
or iPod touch.
The Eco Pod comes with a pair of waterproof earbuds should you wish to listen
to music in the shower or while snorkeling, and is made of a tough
polycarbonate to protect your device from drops or falls. The case is bright
orange, useful if you ...
B10091-BM802 LCD Display Digital Clamp Multimeter Temp Test
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