What is meant by raw file format on digital camera?

canon digital camera reviews image

bitrus d

I bought a canon powershot sx30is digital camera. when i checked its review on some sites they speak of missing raw files as a disadvantage. What is it, how does it work and what is it use for.
thanks

Answer
When you shoot in jpeg, the camera takes the info, applies the settings you chose (white balance, saturation ... so on so forth) and then discards all the extra information. Jpeg also compresses the image, this comprsssion results in some loss of quality (not a ton but still).

Raw is just that, all the RAW sensor data. This gives you greater flexibility when it comes to adjusting exposure, white balance, contrast ... also any post processing you do to a RAW file isn;t permanent so it's great for making adjustments.

how do i use the intervalometer on my Canon Powershot s70 digital camera?

evident

how do i use the intervalometer on my Canon Powershot s70 digital camera?

I see how to set it, but when I do, the camera goes to sleep in between exposures. I set it to take 100 pictures, one a minute, but after 30 seconds the camera goes to sleep (i.e., lens retracts) and it does not wake up for the next exposure. Any ideas? I want to take some time lapse shots and can't quite figure out how to make it work.

Answer
Have you tried turning off the power saving mode.

In the setup you should find "Power saving" with the option to "Auto power down" (on/off)

<img src="http://www.dcresource.com/reviews/canon/powershot_s60-review/screen-setup-menu.jpg">

Check my sources for more info.

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