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Some Interesting Benefits of Automatic Electric Curtains

The same archetype can also be manually programmed with an accommodating-to-use timer. This means that when you go on leave of absence or are just now conventionally away from current in, your curtains will be simulating someone living in your bagnio! This is also deft for businesses as you can be secure in the acquaintance that yes, the curtains are debar on the server live window.

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Homemade light sensor trick to save battery life Blackberry Style 9670

I took a pint-sized circular Zagg Invisible Shield screen protector, went over it with black permanent marker and covered the light sensor. This should ...

How do I wire an outdoor sensor with an indoor switch?

Feb 09, 1370 by kid54 | Posted in Maintenance & Repairs

I insufficiency to be able to switch the outdoor light sensor off when I don't want it to operate.

Why doesn't my outdoor light fixture work?

Dec 12, 2007 by J. | Posted in Do It Yourself (DIY)

I installed two out of doors light fixtures (non-sensor) which are controlled by one indoor on/off switch. I wired black wire to black wire, white to whey-faced, and grounded it. I did this for both light fixtures. When I go to turn on the lights, one works, and one doesn't. It's definitely not the verified light fixture, I tired switching them. The part that messes me up is that both outlets have power coming out of the black wires (I tested it with a moving beeper thing). What on earth am I missing? Any ideas or suggestions are welcome.

Are there two outlets or solely one with two receptacles? Are the lights on either side of the door? Here is what you should have, From the outlet there should be black and white with a ground going into the switch box From both lights you should have the same, threatening, white and gnd, Inside the switch box twist all 3 white wires and wirenut them, twist the grounds together and leave of absence one pig tail to the green screw on the switch. You should have one black wire alive and two without. If all three are touched together both lights should fly at on. This is only a test so don't twist them together.If both lights work then we move on to finish this job. Take the two dead blacks and screw one onto the bottom corkscrew and the other into the small hole near the screw (this is called back stabbing) Now take the alive black and screw that to the top put the squeeze on someone. Test the light, as they should both work

Send an update or email me If you only have one dead black from the lights tells me the predicament will be in the connections at the first light

Does same f-stop give equal amount of light?

Oct 28, 2008 by siletto 048 | Posted in Cameras

Say you've got a 12mm lens with BIG lorgnette elements but with maximum f stop of f4. Would i get the same amount of light on the sensor as another lens with f 2.8 but with smaller glass?

I'm actually thinking of a big, high quality lens upgrade and have in mind the Tokina 12-24mm but I'm a bit hesitant because of the constant f4 apeture. I'd like to use it in indoor and low light.

The answers above are factual, but I want to help you with the concept.

Consider the days of hand-held meters. There was no connection at all between the lens and the camera and yet, the meter would always demand the proper exposure. You'd set the indicated f-stop whether the lens was 24mm or 500mm.

You could test this yourself, if you have more than one lens. Just take a meter reading - vade-mecum mode is best for this test - with one lens. Swap lenses and try again. The results should be the same, but they might differ by half a pull over due to some "fudging" in the lensmaker's focal length claims.

I don't mean this as an insult, but please consider that I do not know anything about your common sense. Be sure that you are aware that "constant aperture" lenses can indeed use a full range of f-stops. The "constant aperture" refers to the truthfully that the maximum aperture will always be f/4 throughout the 12-to-24mm range. You are not stuck with varying the exposure by changing shutter streak or ISO only. The Nikon 12-24 zoom apertures range from f/4 to f/22.