Jpeg or RAW ( & Why) June 2013

Started Jun 8, 2013 | Photos thread
josbiker Contributing Member • Posts: 999
Re: Straightforward answer to your question

kevinparis wrote:

Bassam Guy wrote:

Size & Detail

RAW is bigger but (on most modern cameras) has 16 bits of information for each color channel: Red, Green, and Blue.

actually there is probably only 12 or maybe 14 bits of information for each of the channels

JPEG is smaller but has only 8 bits of information for each color channel.

Therefore, RAW has an awful lot more detail than JPEG.

More information - not necessarily more detail

I prefer RAW because I can adjust exposure +/- 1.5 stops without noticeable loss of IQ, and set White Balance, saturation, etc. with no loss of IQ.

*About size. If you anticipate making any modification to your photographs and keep the originals, then RAW is actually smaller because you'll still have only one RAW file vs two or more JPEG files (original + modifications).


RAW formats are readable only by a handful of imaging programs.

RAW is an editing format, not a delivery format

JPEGs can be read and displayed by nearly every electronic device.

I still prefer RAW because I can make JPEGs from RAW but use JPEG occasionally for convenience.

Image Quality (IQ)

Out of the camera, JPEG has a slightly lower quality because of two things:
1. JPEG has a lossy compression - that is, some detail is lost although usually not enough to notice.

2. JPEG uses Cyan, Magenta, and Yellow (CMY) rather than Red, Green, and Blue (RGB) to represent colors and there is some loss of detail when your camera converts from RGB to CMY.

Complete nonsense - CMY(K) is entirely to do with the traditional printing industry.

describes what happens with JPEG in relation to RGB

Every time you save a JPEG, there is more loss of IQ.

Only if you have made a change to the file

RAW files stay intact. You don't modify the RAW file itself but, rather, how the RAW file is displayed: Cropping, White Balance, Exposure Level, Color Saturation, Noise, Smoothing, etc. can be adjusted without changing the RAW file itself. 98% of modifications I make can be done with a RAW editor.

I prefer RAW because they stay intact.


I usually use RAW because I am not a perfect photographer and want to be able make major color and lighting adjustments after uploading the photos to my computer. I don't always have time to check white balance setting, etc. before photographing my fast moving 5 yr old boy. I can't train him not to run from sun to shade or shade to sun.

I usually use RAW because I am not a perfect computer operator and would not want to accidentally overwrite the originals.

However, if you do not ordinarily make such adjustments to your pictures. then JPEG may be suitable for you. Maybe I'm just paranoid but this at least explains some of the trade offs.

sorry ... just correcting a few errors.


That is what i call "i have heard that and i understand that and i have read that"

Just give me my 2 shots and i am satisfied. (i have asked this several times and i get no response)


 josbiker's gear list:josbiker's gear list
Panasonic Lumix DC-G9 Panasonic Leica DG Macro-Elmarit 45mm F2.8 ASPH OIS Panasonic Lumix G Macro 30mm F2.8 Panasonic Leica 12-60mm F2.8-4.0 ASPH Panasonic Leica DG 50-200mm F2.8-4 +1 more
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow