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Digital Cameras

Digital photography has grown exponentially in the 21st century, making film cameras nearly obsolete. Ask questions here about digital camera brands, functions and prices here.

4,826 Questions

How do you take a picture of lightning?

Lightning photosThe best photos of lightning are taken at night time. This is an advantage because you can take very long exposures without over-exposing. Make sure that you have a tripod and a camera that allows you to set up manual settings. A remote trigger is a great advantage. When a thunder storm approaches, set yourself up in a nice dry advantage point and get ready to shoot.

In my experience, 110 photos resulted in 3 excellent photos of lightning and another particularly violent-looking one. (every other photo was obviously very black.) Each photo was taken with between 10s and 20s exposure, and I left the aperture mid-way. The lightening itself is overexposed - of course, but try to make sure that the city lights (or the silhouette of the landscape) are clear. Using digital is a serious advantage for the amateur because one can see their results immediately and there is no expensive mistake of taking a full film of underexposed frames.

Can you use a 3.7v AC adapter for an LED light that recommends a 4V adapter?

You will be undervolting the LED by .3V, but otherwise it should work ok. Note the LED will not be quite as bright as it would be with 4V, but 0.3V isn't much to worry about. Also, make sure the adapter has the current capacity for the LEDs. If the LED draws more current than the supply can put out, it will not work and may burn up the adapter.

What is the unit of Gray level pixel intensity?

The unit of Gray level pixel intensity is typically expressed in pixel value ranging from 0 (black) to 255 (white) in an 8-bit system. In medical imaging, Gray level pixel intensity can also be measured in Hounsfield Units (HU) for CT scans or in Standardized Uptake Value (SUV) for PET scans.

What is gage RR?

Actually the correct spelling IS Gage. And, perhaps there is a term "gauge RR" which refers to the size of railroad tracks. But the Six Sigma methodology for process improvement includes a step called Gage R&R. The R&R stands for reliability and repeatability. This is part of the process of verifying your data for analysis - determining if the same results would be obtained regardless of the operator, hence "reliability (accuracy of the data) and repeatability (will it be the same each time, all else being equal).

AnswerIt's the size of the tracks a train uses The spelling you want is GAUGE. This is not a complete answer but you can easily get more through a search.

Gauge of track differs between for railways people use, model trains, and toy trains.

This is not a complete answer.

Another Answer

The first answer is pretty much correct except that Gage R&R does not check accuracy of the gage. This is a separate test. A gage can be repeatable (give pretty much the same answer for one operator) and reproduceable (give pretty much the same answer from operator to operator) but still be giving the wrong size. R&R is a statistically-based number that identifies the probablity of getting the same answer, but not necessary the correct answer.

Will you go blind if you watch a nuclear explosion?

Directly watching a nuclear explosion can cause temporary or permanent blindness due to the intense light emitted during the explosion. The light can overwhelm the retina, causing burns and potentially leading to blindness. It is advised to avoid looking directly at a nuclear explosion and seek shelter instead.

How long would it take for a 15-year-old to lose 10 pounds?

diets are a process. the faster you loose the worse it is on your body, sudden weightloss is the loss of muscle along with fat and usually causes stretch marks, weakness and in the long run many diseases since the girl is 15 she is at major risk of damaging her body by eating an unhealthy and imbalanced diet at that crucial growing stage...crash diets are not the answer if she wants to keep them off. so she should eat a nutritional 2,500 calorie diet and the weight will come off and stay off.

What would you need to fix if you are receiving Trouble Codes P1507 P0171 and P0174 on a 2000 Ford Windstar 3.8 6 cylinder?

P0171 and P0174 (mixture too lean) is a known design fault. Excessive oil is pulled into the air intake plenum above the engine from the PCV tube, and the accumulated oil causes the seals on the isolator bolts holding the plenum onto the intake manifold to fail and leak. The solution is to replace the isolator bolts (current ones have improved seals), intake/plenum gaskets, and possibly some other vacuum hoses. See Ford TSB 03-16-1.

It seems as though your Idle Air Controller isn't responding fast enough. If this isn't working correctly then it can cause the other two codes.

See "Related Questions" below for more on the isolator bolts problems, and more importantly, the fix.

What kind of tester is needed to test 1995 chev blaver?

Depends on what you want to test. The computer is of the OBDII family and produces codes that can be retrieved by plugging into the code reader port. It is usually under the dash on the drivers side. most auto parts stores will either read it for you or loan you a code reader. Most of the sensors can be diagnosed with a Multi-meter. You will need a meter that offers high impedence and cycle rates.

What is the highest paying job in the field of psychology?

Psychiatrists typically earn the highest salaries in the field of psychology, due to their medical training and ability to prescribe medication. They diagnose and treat individuals with mental health disorders, often working in hospitals, clinics, or private practice.

How does an underwater rebreather work?

Basically, when you breathe in air from regular SCUBA gear, only about a fourth of the oxygen you breathe gets inhaled. So in a rebreather, the rest of the air and the carbon dioxide goes through a scrubbing system of calcium and sodium hydroxide. Then it goes through the rest of the loop and you breathe it in again.

Are there any Free online french courses?

Yes, there are free online French courses available on websites such as Duolingo, FluentU, and BBC Languages. These platforms offer interactive lessons, exercises, and resources to help you learn French at your own pace.

What is the suffix of photograph?

The suffix -ic (also -ical) means "relating or pertaining to" and forms adjectives from nouns.

How do you format a corrupt SD card?

In a Windows computer, insert card, select card in the Explorer, right click on card and choose Format. Don't use Quick Format. If the card is larger than 2GB, you will have to use FAT32 for the file system. After the card is formatted, check the card for errors. Right click on the card, choose Properties, and then the Tools tab; Error checking.

Personally, I would not trust a card that came up with an error. SD cards are so cheap these days that you should probably throw it out and get a replacement instead of risking your data.

Why do sd cards corrupt?

the most common cause is water, if the card gets wet or is in an area with lots of moisture or humiity, it damages the interface wires (the copper coloured grooves at the bottom of the card. of course it could just need re-formatting, stick it in a PC and try.

What is the Latin word for light?

lux, lucis f., meaning light, daylight

luce: in the daytime

prima luce: at daybreak

luce carentes: the dead

Umbra: shadow

How can I get a photograph and specs for the Mombasa buffet by Thomasville furniture Ernest Hemingway Collectiion circa year 2000?

You can try searching online marketplaces, antique furniture stores, or contacting Thomasville Furniture directly to inquire about obtaining a photograph and specifications for the Mombasa buffet from the Ernest Hemingway Collection. You can also look for vintage furniture catalogs or magazines from around the year 2000 that may include information about the piece.

What is Gamma interferon?

Gamma interferon, also known as IFN-γ, is a type of cytokine produced by certain immune cells in response to pathogens. It plays a crucial role in activating immune responses, particularly in regulating the activity of immune cells like macrophages and T lymphocytes. Gamma interferon helps to enhance the immune system's ability to fight infections and tumors.

How much did a camera cost back then?

It would depend on the time period and type of camera. In the early 20th century, cameras could range from a few dollars to a few hundred dollars. The cost increased over time with the introduction of new technology and more advanced features, making cameras more expensive.

First halftone photograph published in a newspaper?

The first halftone photograph published in a newspaper was in the New York Daily Graphic on March 4, 1880. It depicted a statue of Diana in the Metropolitan Museum of Art. This breakthrough in printing technology allowed for photographic images to be reproduced in newspapers.

Disadvantage of advertisement?

The strong objection and arguments against the advertising is that it is a costly function. It is generally criticized that the cost of advertising to too high and that such high cost is covered by the selling price of the advertising goods. Advertisement is considered as an indirect cost which is added in the distribution expenses. When expenses are to be increased, the selling price of the products will also be enhanced. It is true factor because large advertisers spend thousand of Rupees for advertising in a week.

Meaning of cinema?

A film or movie.

The film or movie industry.

Films or movies considered as a group.

I was in the mood for popcorn and a nice movie, so Alice and I went to the cinema.

How do you destroy digital media?

It depends on what you want to destroy. If it's a digitally recorded tape, just pull it out of the cassette and stretch it, cut it up or wad it up until it wrinkles.

If it's a CD or a DVD, I usually put mine in the microwave (1000 watts) and set the timer for three to five seconds. It really puts on a light show and smells bad, but you can watch the microwaves eat the metal layer right off the plastic. There definitely won't be anything left of the data.

What does 40X60 zoom mean?

The term "40X60 zoom" refers to the magnification capabilities of optical devices such as binoculars or telescopes. The "40X" part signifies that the object being viewed appears forty times closer than it does to the naked eye. The "60" refers to the diameter of the objective lens in millimeters, which determines how much light can enter the device, affecting the brightness and clarity of the image seen.