BetterMost Community Blogs > Messages From The Heartland
David's Shutter Bug Club
David In Indy:
--- Quote from: injest on January 22, 2008, 09:44:19 am ---?? I knew they got worse when I blow them UP...
and what is RAW??
--- End quote ---
Yes, when you blow up digital images too much, you get pixel deterioration. When this happens the picture looks "digitized" because of all the interpolation.
When you shrink digital images, you can also have a loss of resolution - things like "ghosting" and fringing. Take a look at the mountain scene up at the top of the homepage. If you look close, you can see some ghosting up at the very top of the highest mountain tops, like little "waves" or a haze. This is what is happening to my pictures too, but it seems to get even worse when I upload them to the Internet.
I will try taking pictures I plan on uploading using a lower resolution, maybe 2mp. I have to shrink the images down anyway because they would take way too long to upload, and I must resize them to fit on the page.
David In Indy:
--- Quote from: injest on January 22, 2008, 09:44:19 am ---?? I knew they got worse when I blow them UP...
and what is RAW??
--- End quote ---
Oops! Sorry Jess. I forgot to tell you what RAW is!
RAW is an uncompressed file certain cameras will use to preserve image quality. A RAW file is either uncompressed or only slightly compressed. You can then import the RAW file into imaging software for editing. RAW files are pure. The camera saves the image EXACTLY as it "sees" it. There is very little or no image corruption since it is not compressed. The problem is, RAW files are HUGE! They take up many many megabytes and unless you have a large memory card, you really can't store more than a dozen RAW images at one time. I have a 2 GB memory card, and I really can't squeeze more than 50 RAW images on there. So, I'm constantly importing the images to my computer in order to save space on the SD card.
Anyway, most people don't use RAW, and only certain cameras have RAW file capabilities. TIFF is another file format similar to RAW, but it tends to compress the image file a little bit more than RAW.
David In Indy:
A little splash of color in an otherwise very sad day without our Heath. :'(
Colored Golf Balls
Conditions: Indirect lighting
Camera Equipment: Canon PowerShot G9
Camera Mode: Manual
Aperture: f/5.0
Shutter Speed: 1/60
White Balance: Custom
Light Meter: Evaluative
Exposure Compensation Value: 0
ISO: 80
Flash: Off
injest:
very cool!
David In Indy:
I took these through the window. It's too damn cold out there!
That squirrel is theiving from the bird feeder! Damn devil!
Conditions: Bright Sun
Camera Equipment: Canon PowerShot G9
Camera Mode: Manual
Aperture: f/5.6
Shutter Speed: 1/500
White Balance: Custom
Light Meter: Spot
Exposure Compensation Value: - 1 1/3
ISO: 100
Flash: Off
This little squirrel was much smarter because there is corn right there on the floor!
Conditions: Bright
Camera Equipment: Canon PowerShot G9
Camera Mode: Manual
Aperture: f/3.2
Shutter Speed: 1/500
White Balance: Custom
Light Meter: Evaluative
Exposure Compensation Value: - 2/3
ISO: 200
Flash: Off
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