answersLogoWhite

0


Best Answer
Copy

Pixels are tiny building blocks of color in an image; the more you pixels there are, the more detailed the image will be. A mega-pixel is a set of one million pixels; most DSLR cameras have a range of around 10 megapixels up to a mind-blowing 50 megapixels.

How many mega-pixels you have is not really the most important factor in getting good images, though. It sure is quite important in getting sharp images, but even more important is the lens, or "glass" that is used. For example, a camera with twelve megapixels paired with a very good quality lens will often have more detail than that of a 24 megapixel camera paired with a cheap lens. This all comes down to a factor called "Perceptual Megapixels," or "P-Mpix" for short.

Let's get this out of the way now- you will almost certainly never get all of the detail out of your camera sensor that it is capable of. A typical DSLR today has somewhere around a 24 megapixel sensor, but with the kit lenses that come with them, you only get about 9-13 perceptual megapixels of detail (Now you get it!). To get an image with a higher P-Mpix count, you have to use higher quality glass (lenses).

Sharpness can also be affected by factors like shutter speed, aperture, or ISO settings. If the shutter speed is not high enough on the camera, the image can be subject to motion blur. Aperture is also a very large factor in image sharpness. The aperture controls how much light enters the lens, and also the depth of field (the part of the image in focus). At apertures wider than about f/3.2, the image can become unsharp, and at apertures narrower than about f/7.1, the image can be subject to diffraction, which degrades sharpness.

User Avatar

Wiki User

โˆ™ 2016-01-09 19:43:20
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
๐Ÿ˜‚
0
User Avatar

Add your answer:

Earn +5 pts
Q: How many mega pixels do you need to achieve a quality image?
Write your answer...
Submit
Sign up for more answers

Registered users can ask questions, leave comments, and earn points for submitting new answers.

Already have an account? Log in

Related Questions

How many pixels in an image taken by a 2.1 megapixel camera?

2.1 Million pixels will be in an image taken by a 2.1 megapixel camera


2 How does the number of pixels affect the quality of an image?

A digital camera has a set number of pixels on its sensor. A pixel or picture element is a dot of light and color with a measured value for both brightness and color. The more present pixels, the more physical resolution is available and larger prints can be made with more physical detail. Too many pixels can result in overcrowding, forcing the pixels to struggle against the surrounding, occasionally reducing the overall quality (especially color and low light performance) of the image.


A megabyte equals how many pixels?

It depends on * Image * Image format * Color depth


What is image data?

When a person refers to image data, they are most likely referring to the internal code of a picture file that tells the computer information it needs to display the image, such as (but not limited to) what color the pixels in an image are, how many pixels an image has, and what image type it is.


How many pictures can a 4GB memory card hold at 9.2 mega pixels?

depends on the picture size depends on the quality of the image usially 300 images per gig on highest quality


How many pixels in a standard photo?

A pixel is a bit of information in an image file. They do not relate directly to the size of the image. You may be confusing the concept of pixel count with the practice of expressing image dimensions in pixels. Generally speaking, the more pixels the better. The more information in the file, the more detail that can be included in the printed image, and the larger the image can be printed while maintaining good quality. Average pixel counts with newer consumer digital cameras run between 6 and 10 megapixels, as a rule. That translates to quality prints of at least 8 x 10 inches, and in many cases even larger.


How many pixels are in 100 KB?

This can vary wildly based on image format and other factors. For example, jpeg images can have smaller sizes (though lower quality) depending on how compressed they are. In the case of bitmaps, the amount of pixels that can fit into 100KB depends on its bit depth. A 1-bit 100K bitmap can fit 819,200 pixels. The 8-bit, 16-bit, 24-bit, and 32-bit bitmaps can fit 102,400, 51,200, 34,133, and 25,600 pixels, respectively. The general formula for how many pixels fit in an image of a certain size is as follows, for a bitmap: Pixels = [Size (in KB)] / [Bit Depth] x 8,192.


How many pixels in an image for printing?

Printing a photograph in a newspaper and printing a photograph in an art book will require very different image resolutions. For the newspaper 100 pixels per inch is OK for the art book 600 or more. So if your image is 5 * 8 inches the newspaper picture should be 500 * 800 pixels or 400 000 pixels, the art book greater than 15 million pixels.


How do you convert pixels into inches?

It isn't as simple as that. A pixel is 'PICture ELement' and has no set size value of it's own. It's kind of like asking how many bricks are in a metre - that would depend on the size of the brick. The only value that will aid you in working out how many pixels are in an inch would be the PPI (pixels per inch) value of the image you are working with. If you are working with an image that has a PPI value of 300, then there are 300 pixels in 1" of that image.


How many pictures at 10 mega pixels will a 16gb memory stick hold?

It depends on how the images are encoded and the quality of the image. If they are JPEGs at high quality, then they will be around 4 megabytes each, so you would get around 4000 images on such a card.


How many pixels are in one inch?

Depend on image resolution. You can see image resolution in Photoshop from Image > Image Size. Pixels are just the tiny dots that form images, they are not a form of distance measurement. To demostrate this, take for example a 40 in. TV. That 40 inch TV might contain 1920 x 1080 pixels to make up the screen, but likewise, a computer screen that is only 20 in. can also have the same amount of pixels.


How many pixels are in a low resolution image?

It depends on the resolution. For example a resolution of 1220x960 would have 1,171,200 pixels or 1.1 megapixel. You take the height (1220) times the length (960.) If referring to an image, you can say it is a 1220 by 960 or a 1.1 megapixel image.


How is a pixel used to represent images?

Many pixels make up one image. A pixel is like one tiny piece of an image.


How many photos does a 128mb stick hold with a 6.1mega pixels camera?

A 6.1MP (fine quality) image normally eats up 2-2.5MB of memory. So expect to hold 50-60 images.


How is PPI related to Photoshop?

PPI stands for pixels per inch or image resolution. In other words how many pixels per square inch are distributed horizontally and vertically.


How many pixels in a 8x11?

Pixels are a measurement of the resolution of an image. For example, old laser printers used to print in 300x300 pixels per inch, then came 600x600 prints. I'm sure you're asking "Why are you talking about laser printers when I asked about pictures?" Because the premise is the same. An image that is 1 inch by 1 inch that use the 600x600 resolution would have a file size roughly twice that of a 300x300 resolution. All of that to tell you that no one can really tell you, you will have to find the resolution of the image, find out how many pixels are in a square inch of that resolution, then multiple it by the size image you have.


How many pixels do you need for a good image?

It depends on what you plan on doing with the image. Ideally, you want a 1:1 relationship with the medium you intend to use. For a computer screen, that means the image should be the resolution of your screen (i.e. 1650x1024) if you wanted a full-screen image. For printing to paper, it is recommended that you have at least 240 dpi, so a 3x5 image would need to be 720 x 1200 at minimum to have a decent quality print. Obviously, the more pixels you can stuff into an area, the better, but keep in mind that the 1:1 ratio will provide the best resolution for whatever you are using the image for.


Does the quality of a picture determine how much pix it can hold?

No, but it might determine how many mega pixels the camera has.


Do all digital cameras produce the same image quality?

Not really.It depends on individual companines as they vary in post processing expertise and also the quality of the lens and sensor matter.Generally the bigger the sensor the better the photo quality but there are 100's of small factors that make some cameras better than others. The easiest way is to go for a larger sensor size not the omre pixels as they usually do not effect the quality rather at times too many pixels on a small sensor can make lots of poor artifacts.


How many pixels are in 700K?

how many pixels are in 700K


How many is 10 mega-pixels?

Roughly 10,000,000 pixels.


What is 54000 pixels in mega pixels?

1 Megapixel = 1,000,000 pixels so to find out how many megapixels, divide the number by 1,000,000: 54,000 / 1,000,000 = .054 megapixels or not very much at all, that's an image that is better suited for websites rather than printing.


How many mega pixels does the canon rebel xt have?

well if you are shooting with the quality at 3456x 2304 then its about 8 megapixels


How many pixels are in an IPad?

9,756 pixels


How many pixels per inch in a widescreen television?

The number of pixels per inch on a widescreen television will also depend on the type of television it is. For example an HDTV television will have more pixels per inch to provide better picture quality. An HDTV would run at approximately 1080 pixels per inch.