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HelicopterAerial Photography and Video › What's a RAW image?
09-11-2007 09:33 AM  10 years agoPost 1
Kona Chopper

rrKey Veteran

Kailua-Kona, Hawaii USA

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Like the title says. What is a RAW image that is taken from a digital camera?



Why buy?? when you can borrow and no return

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09-11-2007 10:48 AM  10 years agoPost 2
Hatim Saeed

rrApprentice

Dubai, UAE

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It is exactly what it read. Its RAW!
without any filter or process. Its as good as a neagative file from a film camera.

Regards
Hatim

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09-11-2007 03:10 PM  10 years agoPost 3
wwellman

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Marlborough, Ma.

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RAW file format is the uncompressed, unprocessed data file captured by the camera's image sensor, before any in-camera processing has been applied (though, in practice, depending on the camera manufacturer, some minimal in-camera processing may have been applied to the RAW data). In this sense, an image saved in the RAW file format is the digital equivalent to the (exposed but as yet unprocessed) film negative.

In fact, the camera will ignore your white balance, sharpening, contrast and saturation settings. Instead of applying them to the RAW data, it will save those settings in a separate header associated with the RAW data.

Walter

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09-11-2007 05:11 PM  10 years agoPost 4
AceBird

rrElite Veteran

Utica, NY USA

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Its as good as a neagative file from a film camera.
Its better, it doesn’t degrade as fast with age.

I believe raw is the digitized values of the analogue signal from each pixel. So the only process done to the data is digitizing. Personally I think all professional photography should be raw and then processed in a PC for final output. Incidentally, industrial cameras grab raw images. That’s why they are so fast and small. They don’t have all the excess baggage mounted in the camera for the do dad factors.

Ace
What could be more fun?

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09-11-2007 06:30 PM  10 years agoPost 5
FLAP

rrKey Veteran

Michigan

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RAW is required for historic reference photos. I assume due to its quality over conventional jpg. However, more work required and most of the time jpg is sufficient. I have only had one customer ever specify RAW. If you have a real high value shot, maybe where you are doing a specialized print where you want all the advantages you can get, then do RAW. It isn't a requirement for the vast majority of what we do.

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09-11-2007 09:23 PM  10 years agoPost 6
CKY

rrVeteran

Sunshine Coast, BC, Canada

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The nice part about RAW format in the new DSLR cameras is that you can usually shoot RAW+jpg at the same time. You will need big memory cards and have decent editing software to deal with RAW files "should you need them"

You can worry less about having all the right settings all the time like, White Balance, sharpening values, saturation values, contrast values, hue shift, and filter modes, etc.

You can always tweek a raw file to get what you intended. (exposure compensation being the biggest advantage along with WB) A lot more latitude is allowed with RAW, BUT, JPGs are still the way most will edit their photos. For good reason, easier, faster, and a "high" end monitor is not really required. When dealing with RAW everything needs an upgrade.

Chris

PS... ACE, oh, never mind

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09-11-2007 09:55 PM  10 years agoPost 7
Hans Idar

rrApprentice

Alta

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A picture in RAW format contains 80% more information than the jpg picture. Eveytime u do changes in a jpg, and save u discard the piture somehow. This is not happening in RAW.. or TIF for that sake.

If u convert from RAW and want most of the information in the picture to be kept, u should save it in TIF.

Best regards Hans Idar Haldorsen, Alta - Norway 69,58 degres north 23,14 degrees east.

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09-11-2007 10:41 PM  10 years agoPost 8
wjw

rrVeteran

Cape Coral, Florida usa

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RAW

Hans Idar is correct, RAW contains about 80% more information than Jpeg, this means longer write time to the card, fewer shots for the same amount of flight time, much longer download time to the PC. RAW is the industry standard for Professional photography.

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