Panasonic Lumix DMC-FZ50 10 Megapixel Digital Camera?

ashley cho

Is it an SLR camera

Answer
I own the camera and no it is not a DSLR. It is refered to as a bridge camera. Read these please:
http://www.cameralabs.com/reviews/PanasonicFZ50/index.shtml
http://www.imaging-resource.com/PRODS/FZ50/FZ50A.HTM
http://www.dpreview.com/reviews/read_opinions.asp?prodkey=panasonic_dmcfz50
http://en.wikipedia.org/wiki/Panasonic_Lumix_DMC-FZ50
http://alatest.com/panasonic_lumix_dmc_fz50/digital_compact_cameras/expert_reviews/pe-34039958,147/
This following site will let you see what 848 members and counting think of the FZ50, look at the pics and decide for yourself if it is worth getting:
http://www.flickr.com/groups/panasonicfz50/

5000000ppi= 5 megapixels?

Kenji

are they relatively meaning the same thing?

Answer
Pixels per inch
http://en.wikipedia.org/wiki/Pixels_per_inch
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Dot pitch
http://en.wikipedia.org/wiki/Dot_pitch
Pixels per inch - 101.6
Megapixel - 4.09

Pixels per inch - 203.2
Megapixel - 9.21
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The number of pixels in an image is sometimes called the resolution, though resolution has a more specific definition. Pixel counts can be expressed as a single number, as in a "three-megapixel" digital camera, which has a nominal three million pixels, or as a pair of numbers, as in a "640 by 480 display", which has 640 pixels from side to side and 480 from top to bottom (as in a VGA display), and therefore has a total number of 640 Ã 480 = 307,200 pixels or 0.3 megapixels.
http://en.wikipedia.org/wiki/Pixel
A megapixel is 1 million pixels, and is a term used not only for the number of pixels in an image, but also to express the number of image sensor elements of digital cameras or the number of display elements of digital displays. For example, a camera with an array of 2048Ã1536 sensor elements is commonly said to have "3.1 megapixels" (2048 Ã 1536 = 3,145,728).

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How many mega pixels does our eyes have?

megapixel camera wikipedia image

eyeshield_

If our eyes is a camera, how many mega pixels does it have?

Answer
this is a pretty interesting question, i never thought about it like that.

but wikipedia says..

A digital camera, such as a CCD based one, has 4 "receptors" that make up a "pixel" - red, green and two blue (the human eye is more senstive to light in the blue end of the spectrum, so it has two receptors to get a more precise reading).

Human eyes have two types of receptors called "rods" and "cones". You have 4.5 million cones and 90 million rods. Now rods work better in low lighting conditions (i.e. night vision) but do not pick up color very well (if at all), whereas it is the cones that pick up color. It would be tempting to say that you have 4.5 megapixels then, but that really wouldn't be accurate. You have 94.5 pixels, only 4.5 of which can detect color. But not all of the rods and/or cones are usable in all lighting conditions, so how many usable pixels you have varies quite a bit.

The analogy kind of breaks down because you are kind of comparing apples to oranges.


Movies operate at about 60 frames per second, which is enough to fool the eyes into thinking that there is motion going on. I've heard, however, that this is a little bit of overkill, and that something like 30 frames per second will still fool the human eye.
5 months ago

what is the difference between mega pixels and optical zoom?

rne2004

can anyone explain the difference between these two?
is this right the more mega pixels a camera has the further you can see? what about the Optical Zoom?

Answer
They have NO relation. They are extremely different.
A megapixel (MP) is 1 million pixels, and is a term used not only for the number of pixels in an image, but also to express the number of image sensor elements of digital cameras or the number of display elements of digital displays
Basically an Optical Zoom is a zoom lens. The length of Optical Zoom (point and shoot camera's refer to them as #.#x values, like 4.6x or 2.0x zoom length) is just how far it can zoom.
Read up on Megapixels: http://en.wikipedia.org/wiki/Pixel#Megapixel
Read up on Optical Zoom/Zoom Lens: http://en.wikipedia.org/wiki/Optical_zoom

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what is the difference between mega pixels and optical zoom?

megapixel camera wikipedia image

rne2004

can anyone explain the difference between these two?
is this right the more mega pixels a camera has the further you can see? what about the Optical Zoom?

Answer
They have NO relation. They are extremely different.
A megapixel (MP) is 1 million pixels, and is a term used not only for the number of pixels in an image, but also to express the number of image sensor elements of digital cameras or the number of display elements of digital displays
Basically an Optical Zoom is a zoom lens. The length of Optical Zoom (point and shoot camera's refer to them as #.#x values, like 4.6x or 2.0x zoom length) is just how far it can zoom.
Read up on Megapixels: http://en.wikipedia.org/wiki/Pixel#Megapixel
Read up on Optical Zoom/Zoom Lens: http://en.wikipedia.org/wiki/Optical_zoom

What is the resolution of the camera onboard the hubble space telescope?

James B

Answer
Hubble has several imaging instruments. Two main ones are the Advanced Camera for Surveys (ACS) and the Wide Field and Planetary Camera 2 (WFPC2). Information below at the Wikipedia links. If you mean "how many megapixels" to compare with an off-the-shelf digital camera then ACS is a 16.7 megapixel camera and WFPC2 is about 2.5 megapixels (according to the information on Wikipedia.) WFPC2 was used to image the famous Hubble Deep Field and the Pillars of Creation images. (Any Hubble image with that stair-step pattern was done by WFPC2.)

The angular resolution of the telescope, which is the important point from the point of view of astronomical observations is about 50 milliarcseconds.

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