[Slideshare]intermediate islam introductnakhlaq-lesson#7b(24-dec-2011)
Digital Cameras Dec 2008 Ppt 2007 Slideshare
-
Upload
d6mentors -
Category
Technology
-
view
7.888 -
download
1
description
Transcript of Digital Cameras Dec 2008 Ppt 2007 Slideshare
““Jelly Beans, Pictures & Portraits”Jelly Beans, Pictures & Portraits”
Created Nov 2006 – Updated Dec 2008Created Nov 2006 – Updated Dec 2008
Pixels = DotsJelly BeansJelly Beans
PixelsPixels
Jelly BeansJelly Beans
PixelsPixels
This photo measures› 640 pixels wide› 480 pixels wide
640 x 480 = 307200 pixels
The larger you make a picture, the more you will see the pixels.
The higher the megapixel, the better the photograph
But, how big a picture will you ever print?But, how big a picture will you ever print?
110 cameras vs 35mm cameras?
2,880,000 pixels = 2.8 MegaPixels
1800 x 1600 = 2,880,0001800 x 1600 = 2,880,000
1800 pixels1800 pixels160
0 p
ixels
160
0 p
ixels
Easy to share with others You see them immediately Saves you $ by not having to buy film View images before they’re printed,
edit them or delete them Print them right away No loss of image quality if stored
properly
Lens› Brings light from the scene into focus inside
the camera Aperture
› Hole that can be made smaller or larger to control the amount of light entering the camera
Shutter› Device that can be opened or closed to control
the length of time light enters the camera
The lens plays a very important roll in the quality of photos you take with any digital camera.
You can buy a 6 megapixel camera, but if it has a cheaply made lens on it, the images may not even contain as much detail as a high quality 3 megapixel camera from a major brand.
Some cheaper models of cameras have plastic or poor grades of glass for a lens, so when you're browsing Ebay and see these no-name cameras, beware - you're not getting a top quality lens on them.
Other more expensive models have coated, multi-level glass lenses. While pixels and the quality of the image sensor play rolls in how well your photos will turn out, neither does the job on it's own.
The lens must be a high quality lens in order for you to take good photos. Canon, Nikon, Fuji, Sony, and Olympus are popular for their high quality of lenses on their digital cameras. In case you're wondering just HOW much difference inferior lenses can make to a digital image... look at the image below of the bricks.
Point and Shoot
Fully Automatic Point Fully Automatic Point and Shoot Camerasand Shoot Cameras
5 to 9 megapixels5 to 9 megapixels
$100 to $350$100 to $350
CompactCompact
7 to 12 megapixels7 to 12 megapixels
$200 to $500$200 to $500
Extended Zoom
MoreMoreAdvanced FeaturesAdvanced Features
Focusing ThroughFocusing Throughthe Viewfinderthe Viewfinder
Control LightingControl Lighting
6 to 12 megapixels6 to 12 megapixels
$300 to $600$300 to $600
Digital SLR
For the SeriousFor the SeriousPhotographerPhotographer
InterchangeableInterchangeableLensesLenses
6 to 10 megapixels6 to 10 megapixels
$850 to $2000$850 to $2000
Match the size to your needs… They all take decent pictures Is camera size important to you? Do you want more “photographic”
power? 5 megapixels : minimal resolution 8+ megapixels : overkill? Zoom : 3x to 12x
More megapixels = more picture detail Beyond 5 megapixels, you’re unlikely to
see the difference unless you› Crop heavily› Make poster-size prints
High resolution does NOT assure high overall print quality, since other factors, such as lens quality, affect the picture
In this sample image below, you can see full sized sections of a photo of a car and tree. On the left is as it appears with NO digital zoom. The middle section is at about a 3X digital zoom, and the right section is the digital zoom at 5X. You can see how severely digital zoom degrades an image quality as you use it.
Compact cameras are less expensive Subcompacts cost more, but worth it if
you want to carry it in your pocket Prosumer cameras if you want lots of
control over exposure and the image but prefer a built-in lens
Go for a super-zoom if you want to shoot close-ups of distant subjects
SLR if you must have it all and can afford separate lenses
Compact Cameras› Canon PowerShot A650 IS $400› Canon PowerShot G9 $550› Canon PowerShot A590 IS $170› Nikon Coolpix P5100
Subcompact Cameras› Sony Cyber-Shot DSC-W300
Super-Zoom Cameras› Kodak EasyShare Z1012 IS $250› Leica V-Lux 1› Sony Cyber-Shot DSC-H10 $330
Digital SLRs› Pentax K200D› Canon EOS Rebel Xsi› Nikon D80
What replaces FILM?What replaces FILM?
› Media cardsMedia cards SD cards : Secure DigitalSD cards : Secure Digital SmartMedia CardsSmartMedia Cards XD cardsXD cards Sony Memory SticksSony Memory Sticks CompactFlashCompactFlash
CDs & DVDsCDs & DVDs Web HostsWeb Hosts Flash MemoryFlash Memory
Use NiMH batteries (Nickel-Metal Hydride)› They perform better than alkalines…
BUT They discharge when not in useSO Always keep disposable alkalines as a backup
The higher the mAh the better2500 mAh
mAh stands for Milliamp Hour, a technical term for how much power a particular battery will hold. Digital camera batteries with higher mAh values theoretically last longer without requiring a recharge, allowing you to take more photographs before you have to replace your batteries.
It is recommended when placing batteries in a digital camera that their mAh values match. Otherwise, it is possible that one lesser mAh battery will drain before the others, causing extra strain on the remaining batteries or causing your digital camera to not work until all batteries are replaced.
Printing at Home› Immediate› Convenient› More expensive› Photo quality deteriorates
more over time
Photo Lab› You might have to wait a whole hour!› Less Convenient› Less Expensive› More options for size, novelty products› Able to send your pictures via a web
service
Steve’s Digicamswww.steves-digicams.com
Canon a540› http://www.steves-digicams.com/
2006_reviews/a540_qtvr.html
www.shoppersdrugmart.ca www.photolab.ca www.walmart.ca
As low as 19 cents / print
Snapping pictures Zooming Flash Viewing Downloading Editing
www.flickr.com Photobucket Myphotoalbum Picasa Picturetrail Snapfish
FlickrFlickrTutorialTutorial
FlickrFlickrVideoVideo
TutorialTutorial
MS Office Picture Manager Print Perfect Deluxe : $20 PhotoSuite : $80 Photoshop Elements : $150 Gimp : FREE
Lets Play!Lets Play!
Turn Your Camera on.Turn Your Camera on.
Turn Your Camera on.Turn Your Camera on.
You may have to hold the button down for a You may have to hold the button down for a second or two.second or two.
Set the dial to Set the dial to “auto”“auto”
Set switch to “picture taking mode”.Set switch to “picture taking mode”.
The other button is for The other button is for viewing pictures already viewing pictures already
stored on Camera.stored on Camera.
Take a few pictures.Take a few pictures.
Set switch to green arrow to Set switch to green arrow to viewview your photos.your photos.
You can Zoom in on your subject You can Zoom in on your subject by using the switch on top of by using the switch on top of
camera. Turn it to right or left.camera. Turn it to right or left.
You can also Zoom when You can also Zoom when viewingviewing your your pictures by using the same switch. pictures by using the same switch.
To delete a picture Press the To delete a picture Press the function button while in viewing function button while in viewing
mode.mode.
Then select “erase” and push the Then select “erase” and push the SET button.SET button.
Before trying to store the photos Before trying to store the photos on your laptop let’s create a on your laptop let’s create a
place for them on your place for them on your C: Drive.C: Drive.
1.1. Click on “my computer”Click on “my computer”
2.2. Click on Local Disk (C:)Click on Local Disk (C:)
Click to Click to “Make a “Make a
new new Folder”.Folder”.
A new folder will appear, ready A new folder will appear, ready for you to name it. Name it.. for you to name it. Name it.. ““YournamePhotosYournamePhotos” ”
eg AllenPhotoseg AllenPhotos
DON’TDON’T call it My Pictures call it My Pictures
Now close the Now close the window and window and you have a you have a
spot ready for spot ready for your pics.your pics.
To download pictures to your To download pictures to your laptop use the USB cable provided.laptop use the USB cable provided.
Open the Open the digital A/V outdigital A/V out
as shown.as shown.
Turn the camera on.Turn the camera on.
Your computer will recognize the Your computer will recognize the camera and open a window giving camera and open a window giving you some options. Where do you you some options. Where do you
want to store your photos?want to store your photos?
Choose “copy Choose “copy pictures to a pictures to a folder on my folder on my computer”.computer”.
The Scanner and Camera Wizard The Scanner and Camera Wizard will lead you through the process.will lead you through the process.
Name the set Name the set of photos.of photos.
Browse to find the Browse to find the folder where you folder where you
want to store your want to store your pictures. You already pictures. You already
named it named it ““YournamePhotosYournamePhotos”.”.
You can delete from your You can delete from your camera by checking here, or camera by checking here, or leave them on the camera.leave them on the camera.
Now just follow the wizard through the Now just follow the wizard through the steps. It will copy the selected photos to steps. It will copy the selected photos to
the folder you created.the folder you created.
Congratulations! You’re done.Congratulations! You’re done.
You can now print, edit or insert You can now print, edit or insert your images into documents or slide your images into documents or slide
show presentations.show presentations.
When you get a chance check out:When you get a chance check out:
PHOTOSTORYPHOTOSTORY
MICROSOFT OFFICE PICTURE MICROSOFT OFFICE PICTURE MANAGERMANAGER
GIMP (for more advanced users)GIMP (for more advanced users)