Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-12-2010, 10:01 AM   #1
Veteran Member




Join Date: Feb 2009
Location: Lithuania
Photos: Gallery
Posts: 490
K-x raw or jpg?

Now I wonder.. is there a need to shoot raw with kx?
since the quality of jpeg is the same as raw (cerrect me if i'm wrong), and jpg noise control is exceptionally great. so why to shoot raw?

well, I do not count the point that you could adjust wb later.. since with LightRoom you can do that for jpg also..

So any other points as to why to shoot raw?

or could anyone illustrate?
same composition, same settings, crop from both, raw and jpg?

I think it would be interesting to many people.


Last edited by Mystic; 02-12-2010 at 10:10 AM.
02-12-2010, 10:55 AM   #2
Pentaxian
enoeske's Avatar

Join Date: Jul 2009
Location: Surprise, Az
Photos: Gallery
Posts: 1,897
QuoteOriginally posted by Mystic Quote
Now I wonder.. is there a need to shoot raw with kx?
since the quality of jpeg is the same as raw (cerrect me if i'm wrong), and jpg noise control is exceptionally great. so why to shoot raw?

well, I do not count the point that you could adjust wb later.. since with LightRoom you can do that for jpg also..

So any other points as to why to shoot raw?

or could anyone illustrate?
same composition, same settings, crop from both, raw and jpg?

I think it would be interesting to many people.
quality is not the same. With a jpeg, it takes the raw image data and compresses it so that colors that are close might be called the same. Then instead of having a line of 3000 pixels of different shades of blue, it might just say 1 line of 1 color of blue. It compresses the data to save space. In doing so, however, it drops information. So the quality of a jpeg is much less than that of a raw image.
02-12-2010, 11:37 AM   #3
Senior Moderator
Loyal Site Supporter
Parallax's Avatar

Join Date: Apr 2008
Location: South Dakota
Photos: Gallery
Posts: 15,283
Shooting jpeg is like making a pot of stew and tossing out most of your seasonings and extra ingredients before tasting it to make sure it is exactly the way you want it. With RAW you can add or subtract at will, or start over completely if needed.
02-12-2010, 11:41 AM   #4
Pentaxian
Marc Sabatella's Avatar

Join Date: Sep 2006
Location: Denver, CO
Photos: Gallery
Posts: 10,686
The K-x in no way changes the basic question of the differences between RAW and JPEG so I'd sugest reading any of the other hundreds of threads on that subject. It is true RAW is not inherently better than JPEG if you're not doing any processing of the image, since the RAW file will need to be converted to a JPEG-like form before you can do anything with it anyhow. the advantage of RAW - with the K-x as much as any camera - is if you need to do much processing of it. Doing that processing *before* the conversion to the JPEG-like form can produce better results than doing it afte, although the extent of the difference will depend on the image and the type & amount of processing you wish to do. Again, lots and lots and lots and lots of existing threads (here, int eh PP forum, and in the beginner's forum) discuss this.

02-12-2010, 11:43 AM   #5
New Member




Join Date: Jun 2009
Location: Istanbul / Turkey
Photos: Gallery
Posts: 21
Shooting JPG is like developing a film in an automated machine....and RAW like is developing the photo yourself in a dark room.
02-12-2010, 12:00 PM   #6
Veteran Member




Join Date: Jun 2009
Location: on the wall
Photos: Gallery
Posts: 715
I don't find much benefit when I'm shooting pictures of this or that especially outside, but you will notice benefits when you're handling important images of people you want to impress, or in images that you are particularly proud of. Subtle adjustments of contrast or other levels can reveal elements in your images that go beyond sharpness and focus and help make your subject appear even better.

It's especially useful in unusual lighting situations. You might not notice or have time to adjust the WB, and your raw editor will be useful for correcting for the proper colors.
02-12-2010, 12:14 PM   #7
Site Supporter
GeneV's Avatar

Join Date: Oct 2008
Location: Albuquerque NM
Photos: Albums
Posts: 9,767
I am normally a raw shooter, however, I had to shoot jpegs with the K-x a month ago because I had mistakenly used an SDHD card that was not empty. I have to say that they were the best jpegs I have gotten directly from a DSLR. Even the AWB in indoor lighting was usable.
02-12-2010, 12:58 PM   #8
Veteran Member




Join Date: Mar 2007
Location: Toronto (for now)
Posts: 1,749
sigh .......

02-12-2010, 01:06 PM   #9
Veteran Member




Join Date: Dec 2006
Location: Outside of Philly
Posts: 1,564
First off, your camera ONLY shoots RAW. When you select JPG, the camera takes the RAW data and pipes it into its on-board JPG processor to generate the JPG "image" to save to the card.

When you shoot RAW, the RAW "data" goes directly to the card and is not an image.

To generate an image, you use a RAW processor (software on your PC) which turns the data into a viewable image, much like the camera's JPG processor. The difference is that YOU have complete control over the image generation process. You can change the white balance, adjust the contrast/brightness/black point/etc....

So you can leave these decisions up to the camera's little processor (and hope it makes the right decisions since they are irreversible), or save the decisions for later where YOU have complete control over it.
02-12-2010, 02:10 PM   #10
Veteran Member




Join Date: Feb 2009
Location: Lithuania
Photos: Gallery
Posts: 490
Original Poster
well, I do understand what is raw and what is jpg, but what I wanted to stress is:

K-x jpeg engine is such good, that I do not have to spend the time, that I usually was spending to make my photos look good. From K-x they are beautiful right out of camera.. and if they aren't spot on, on what I wanted, I can use LR or other photoshop, to correct them..

of course for If I would want a lot of control over the image, i'd shoot raw..
but for everyday shooting, K-x's jpegs are amazing.

and to nod egordon99's view I do admit, the same, I always shot raw, with K10d, with K20d, and the most importantly with K-7, but now.. k-x changes it and I reserve shooting raw only to some very important shots..
02-12-2010, 02:43 PM   #11
Igilligan
Guest




Sometimes RAW is the only answer (a must read story)

The Jpeg engine of the Kx is excellent... And I use it 90% of the time.

That said if I am in some tough shooting conditions I will often chose RAW.

The other day my daughters were at swimming lessons... Indoor pool, and funky merc vapor lighting...

So I switched to Raw and to beat the crappy lighting, I jumped in the pool and shot underwater. The natural UV properties of water cured the WB issues and the RAW allowed me to shoot underwater for almost 20 minutes with no ill affects on the K-x. I would not advise going deeper than 10ft without an underwater housing but.... RAW is a lifesaver in tough conditions!
02-12-2010, 03:32 PM - 1 Like   #12
Site Supporter
GeneV's Avatar

Join Date: Oct 2008
Location: Albuquerque NM
Photos: Albums
Posts: 9,767
QuoteOriginally posted by Igilligan Quote
The Jpeg engine of the Kx is excellent... And I use it 90% of the time.

That said if I am in some tough shooting conditions I will often chose RAW.

The other day my daughters were at swimming lessons... Indoor pool, and funky merc vapor lighting...

So I switched to Raw and to beat the crappy lighting, I jumped in the pool and shot underwater. The natural UV properties of water cured the WB issues and the RAW allowed me to shoot underwater for almost 20 minutes with no ill affects on the K-x. I would not advise going deeper than 10ft without an underwater housing but.... RAW is a lifesaver in tough conditions!
Great story! It really is an amazing camera. I switched it to K-x raw because my doctor said I would get more of the vitamins which are lost in the cooking process.
02-12-2010, 04:09 PM   #13
Senior Moderator
Loyal Site Supporter
Parallax's Avatar

Join Date: Apr 2008
Location: South Dakota
Photos: Gallery
Posts: 15,283
QuoteOriginally posted by Mystic Quote
Now I wonder.. is there a need to shoot raw with kx?
since the quality of jpeg is the same as raw (cerrect me if i'm wrong), and jpg noise control is exceptionally great. so why to shoot raw?
QuoteOriginally posted by Mystic Quote
but now.. k-x changes it and I reserve shooting raw only to some very important shots..
I'm confused. If you feel jpeg is just as good as RAW, then why use RAW for the "important" shots instead of jpeg?
02-12-2010, 08:09 PM   #14
Veteran Member
mattdm's Avatar

Join Date: Feb 2007
Location: Boston, MA
Photos: Gallery
Posts: 2,964
QuoteOriginally posted by enoeske Quote
quality is not the same. With a jpeg, it takes the raw image data and compresses it so that colors that are close might be called the same. Then instead of having a line of 3000 pixels of different shades of blue, it might just say 1 line of 1 color of blue. It compresses the data to save space. In doing so, however, it drops information. So the quality of a jpeg is much less than that of a raw image.
Note that the JPEG compression algorithm is far more sophisticated than this explanation suggests. I realize you're intending to give an over-simplification to make it understandable, but there's more going on than color quantification.

QuoteOriginally posted by Parallax Quote
I'm confused. If you feel jpeg is just as good as RAW, then why use RAW for the "important" shots instead of jpeg?
Are you really confused or just being argumentative?
02-12-2010, 08:51 PM   #15
Junior Member
Marv Toler's Avatar

Join Date: Jan 2010
Location: Okemos, MI
Posts: 29
The K-x will allow you to save a shot in both RAW and JPEG formats. Process a few RAW images and see if you like the results better than the JPEG. You alone will know if the extra effort is worth it to you.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
camera, dslr, jpg, photography
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Selecting RAW, but adds a jpg 41ants Troubleshooting and Beginner Help 5 04-09-2010 09:51 AM
Jpg vs. RAW darthku Post Your Photos! 13 10-01-2008 03:06 PM
Fireworks, RAW or jpg? Psyfalcon Pentax DSLR Discussion 12 07-05-2007 08:27 PM
ist DS, RAW or JPG? jdmidwest Digital Processing, Software, and Printing 9 06-01-2007 09:17 PM
RAW+JPG... why? slip Pentax DSLR Discussion 18 04-24-2007 11:30 AM



All times are GMT -7. The time now is 02:01 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top