0
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
The capacity of a card indicates the maximum amount of data that can be stored (less some space for the card's own use).
Megapixel (MP) count refers to the maximum resolution of the camera's sensor -- its ability to record detail. The number of images that can be recorded on a card of a given size is only indirectly related to the capacity of the card, which is measured in Kilobytes (KB) or Megabytes (MB), not MP. That will vary according to the image itself, and to the camera's settings.
For example: My Pentax K10D, with a 10.1 MP sensor and using a 4 GB card, will record approximately 821 images at the highest resolution (10 MP) and a "Fine" resolution setting. The same camera, with the same sensor and same card, will record 10,000-plus images at the lowest resolution (2 MP) and the "Low" resolution setting. Practically all cameras have this ability to change the resolution settings, and thus the sizes of the image files that are stored on the card.
So, you can see that it is only possible to answer your question in very general terms: The higher the capacity of the card, the more images you can store at whatever camera settings. And, as you can see above, even at the highest settings with a high MP count, you can take a lot of pictures!
One thing to think about: storage cards can and do fail. It is better to have two 1 GB cards than one 2 GB card, unless you plan to shoot a whole lot of video. That way if one fails, you can keep shooting and worry about retrieving the images off the other card later.
Where can one purchase digital camera cases?
One can purchase digital camera cases from almost every single shop and/or store that has cameras on sale. It is relatively simple to purchase the correct type of camera case for a digital camera from these shops.
Let size of paper = 100 m2 100 * 0.60 = 60 m2 Now the problem says the copy is reduced by 20%. Not 20% of the 60. Thus, we should subtract the dimension against the whole (one): 60 m2 * (1-0.20) = 60 m2 * 0.80 = 0.48 m2 So the answer is 48%. Tricky...
How does colour depth affect image quality?
Depth affects the quality of a picture in a few ways. Depth can make a picture look bland or it can make it look meaningful or artistic. It can be blurry or completely in focus.
Pixels help to make your image show up better on the screen. More pixels = more detail and accuracy, but the screen is a lot smaller then what you will be actually seeing on a print or a computer so it might be a bit off.
+++
That first sentence misses it point. "Pixel" comes from "Picture element", i.e. a tiny square fragment of the picture, so pixels do not help the image to show up, they form the image.
What companies sell digital camera accessories?
There are all kinds of companies that probably sell photography cameras. Wal-Mart is a good store with good prices to buy a camera. Also, other stores such as Best Buy & HHGregg will sell them too.
To answer this, you have to know what the megapixel count means. The "megapixel" count is actually the number of receptors on the sensor, in millions. 1.3 megapixels means 1.3 million light receptors on the sensor. The number of total megapixels is the number of pixels it has horizontally, times the number it has vertically.
Now, each receptor you have, counts for 1 pixel in the image which comes off the camera. (It so happens that the camera actually has to make up some of these values; the reason why is beyond the scope of a short answer. This means that "megapixel" counts are lies, but that's okay; all camera manufacturers lie equally about this, so it won't affect the calculations here.)
The size of a picture you will get from a 1.3 megapixel camera will depend on your aspect ratio. A point-and-shoot camera will typically have a 4:3 aspect ratio; so to get the width and height in pixels you use:
( 1300000 / (3.0 / 4.0)) ** .5 = 1316
( 1300000 / (4.0 / 3.0)) ** .5 = 987 pixels
So you have a 1316x987 picture. Or, if your camera uses the 3:2 aspect ratio (common on digital SLRs, but seen elsewhere), you'll have just about a 1396x930 picture. How big will this print out?
* At 100dpi: this will be a fairly poor-quality print. You'll either have a 13-inch or 14-inch print from this, depending on your aspect ratio (above). * At 200dpi: this will be acceptable quality if you're not looking too hard. This will give you a 6 or 7 inch print. * At 300dpi: you'll get about a four-and-a-half-inch print from either.
As far as file sizes go, this is entirely dependent on how much JPEG compression you use (assuming that you're saving in JPEG, which you should), and even (on some cameras) the kind of scene you are photographing. According to one online calculator, you should see file sizes from around 256kb (at 90% quality) to around 512kb (at 100% quality). An uncompressed 24-bit bitmap would be about 3.9mb.
Where do you insert an SD card into a computer?
Most towers don't have the specific slot necessary to directly input your micro SD card into your computer. What you need to find is 1) a card reader (available at almost every electronics dealer) or 2) a USB adapter (also available at almost every electronic retailer). A card reader is a small unit, that depending on the maker will either have a USB port on one end to plug into your tower, or a cord that will connect into your computer. Then simply input your micro SD into one of the slots and you should be good to go. A SD adapter may be necessary for this unit though, so be aware before you purchase. The USB adapter is a small unit (something like 2cm in length) that you put the micro SD card into the end of the unit and merely plug the other end into a USB port on your computer. Regardless of what type of computer you have (MAC or PC) a popup should appear immediately letting you know that an external device is plugged in. From there, simply drag and drop to move around your files.
How many pictures on 4GB memory card in 8 mega pixel digital camera?
It will hold up to 1,164 8 mega pixel images. However, the settings on the camera can be changed so that the camera takes pictures of a different size. The same memory card can hold over 4,000 2 mega pixel images. Changing these settings will affect the quality and size of the pictures you take.
Where is zoom feature on desktop?
The answer may vary depending on which operating system your computer uses.
You can reach the Zoom function on your computer by clicking on View in the main toolbar in the upper left hand corner of the screen. Scroll down to see Zoom.
Or you can click on the magnifying glass image in the lower right-hand corner of your screen. Click on the black arrowhead to give you several options to enlarge or reduce the image size on your screen.
How does spy camera watching work?
A wireless spy camera is a very small mini camera that you can use without connecting wires to a recorder. The camera will come with a receiver which connects to your TV for viewing. You can also connect the receiver to your VCR or to a DVR for recording.
Usually powered by a 9V battery which yields approximately 4 hours. The site below has their own rechargeable battery packs that will power a mini cam for up to 12 hours.
You can find a good mini wireless spy camera at the website below.
What are the disadvantages and advantages about lasers?
(Being a Biomedical Student I can Focus on Clinical aspects.)
1. seals blood vessels while cutting any tissue 2. no need to distend with high pressure fluids to stop bleeding - less swelling 3. no need for repetitive diathermy to burn tissues to stop bleeding 4. no need for drainage tubes to drain blood post-operatively (one cause of pain) 1. no need to keep changing instuments through the skin wounds 2. less damage to the portal tissues 3. less likelihood of breaking instruments 4. shorter operating & anaesthetic times as ergonomically more efficient 1. therefore less scuffing to adjacent joint surfaces 2. less damage to surrounding tissues which may be stretched to admit actions of conventional instruments eg. basket forceps 3. better access as fits into very small spaces with gentle curve 1. photo stimulation - some early studies have recognised early ingrowth of healing tissues 1. very easy to manipulate as flexible 2. sensitive to the surgeon - better feel and so may be more delicate 3. works very well in an aqueous medium ie. in a joint with arthroscopy 1. bone sculpting, cartilage contouring now possible 2. therefore training and accreditation of the surgeon most important - in Australia all surgeons who use this should have laser credentialling. 1. once a hospital has a laser the ongoing costs are less than conventional equipment ie. less dispoable "single use" expensive equipment 2. reusable hand pieces (~cost of 1 blade/case) - not adding a lot more expense!
4. Safety considerations 1. surface ablation 0.4mm per pulse 2. surrounding tissue effect <1mm. and this seals the blood vessels 3. if beam doesnt come into contact with tissue within 4 mm. a harmless bubble forms as completely absorbed by the fluid - little likely damage to other tissues besides the one being targeted 5. Precise surgery 1. minimal damage/spread other tissues 2. allows better sparing of adjacent tissues - meniscus, labrum 3. safe - danger zone only 3-4mm in water 4. very precise cutter, ablator,coagulator # Lasers are of high price and limited wavelength range. # Relatively few surgeons are trained in laser use. # Laser equipment is expensive and bulky compared with the usual surgical tools, such as scalpels. # Strict safety precautions must be observed in the operating room. (For example, the surgical team and the patient must use eye protection.) Although many laser surgeries can be performed in a doctor's office rather than in a hospital, the person guiding the laser must be at least as thoroughly trained and highly skilled as someone performing the same procedure in a hospital setting. The American Society for Laser Medicine and Surgery, Inc. urges that:
* All operative areas be equipped with oxygen and other drugs and equipment required for cardiopulmonary resuscitation (CPR)
* Non-physicians performing laser procedures be properly trained, licensed, and insured
* A qualified and experienced supervising physician be able to respond to and manage unanticipated events or other emergencies within five minutes of the time they occur
* Emergency transportation to a hospital or other acute-care facility be available whenever laser surgery is performed in a non-hospital setting.
Imprecisely aimed lasers can burn or destroy healthy tissue.
#If laser hair elimination method is not performed properly, it may cause many skin diseases such as discoloration of skin or burning of the skin.
This answer is given by Tripada (trips_1_11@yahoo.co.in)
There are 3 new releases of Photoshop from Adobe. (Adobe, in my opinion, is the most trusted, most popular brand of photoshop products.) The first is Adobe Photoshop Lightroom. According to Adobe.com, ''Master your digital photography workflow with Adobe Photoshop Lightroom® 2. Import, manage, and showcase large volumes of photographs or perfect a single image. Ideal for: Professional Photographers, Passionate Photographers.'' The next new release from Adobe is Adobe Photoshop CS4: ''Take advantage of unrivaled editing and compositing power, a more intuitive user experience, and significant productivity enhancements. Ideal for: Professional Photographers, Serious amateur photographers, Graphic designers, Web designers.'' The last new product is Adobe Photoshop CS4 Extended: ''Get everything in Adobe Photoshop CS4 plus breakthrough tools for editing 3D models and motion-based content and performing advanced image analysis. Ideal for: Film, video, and multimedia professionals, Graphic and web designers using 3D and motion, Manufacturing professionals, Medical professionals, Architects and engineers, Scientific researchers.'' Quotations from Adobe.com.
The Joy of Digital Photography Colleges?
The right digital photography colleges can give people valuable skills for their personal and professional lives. Here, experts show people the latest technology and software linked to photography. This means that people can walk in and learn how to use point and shoot models as well as manual pieces of technology. These digital photography colleges also show people how to edit images, how to best share and market work, and how to print them, too.
Will the sony cybershot cable work with other models of sony cameras other than the cybershot?
Your Sony camera came with a cord that will allow you to do this. Plug the cord into the computer and into the camera. Follow the direction on the screen.
What is the cost of a panoramic digital camera?
The cost of a panoramic digital camera depends on where you are getting it, the quality of the camera, and what other features they have. They can be very expensive.
The 2CR5 Battery: What It Does and Where to Find It?
If you own a camera, chances are good that it's running on a 2CR5 battery. This 6-volt lithium battery is made specially for film and digital cameras. The 2CR5 battery is produced by Energizer, Duracell, Sanyo, Panasonic, and other battery manufacturers, and it can be bought in both electronics and camera stores. 2CR5 batteries are also sold by online vendors such as Amazon and Newegg.
form_title= Digital Scale form_header= Weigh items easily. What size scale do you need?*= _ [50] What do you need the scale to measure?*= _ [50] Do you want the scale delivered?*= () Yes () No
form_title= Digital Signage form_header= Brand and advertise your business with digital signage. What will the signaage be used for?*= _ [50] How many signs do you need?*= {10, 20, 30, 40, 50, More than 50} Do you have the sign already designed?*= () Yes () No
Is it better to transfer digital pictures using a camera or a memory card reader?
It's better to transfer digital pictures using a memory card. The memory card can allow you to transfer them to multiple computers and can easily be kept to use at anytime.
Can I use regular batteries in a digital camera that takes rechargable batteries?
Yes you can. Just don't mix the normal batteries with the rechargable batteries because these are two different kinds of batteries and mixing them might cause harm to your device. Only use one or the other.Also look at your instruction manual for use of the camera and if it clearly says don't use regular batteries then follow their advice.
Is there a measurement for shutter lag on digital cameras?
There is no measurement for shutter lag, unfortunately, on digital cameras.
Which digital camera has built in video editing (no hooking up to a computer)?
Unfortunately for that you'll have to get a low-end camcorder to do video editing.
Does the Sony Cybershot camera have a HD video mode?
Yes the Sony Cybershot does have an HD video mode as one of it's features.
