RAW+L-JPG vs. L-JPG only Question

Tamron AF 28-300mm f/3.5-6.3 XR Di LD Aspherical IF for Canon

07/20/2005 06:05:53 PM · #1

Q. Is the JPG file attached to the RAW file while shooting in the "RAW + JPG mode" better quality than a JPG file shot in "JPG mode only"? Both shot at High Quality.

A. ?????

See picture below. It is the JPG file that was attached to the RAW file shot in "RAW +JPG mode. It seems to have better exposure. Did I just get lucky?

EDIT: to try to explain my question better.

Message edited by author 2005-07-21 08:28:38.

Tamron AF 28-300mm f/3.5-6.3 XR Di LD Aspherical IF for Canon

07/20/2005 08:02:33 PM · #2

Anyone??? Bump hoping for a response. I don't want a picture critique, I just want to know if anyone has an answer to my question...

07/20/2005 08:14:06 PM · #3

There are two grades at each size. Are the two jpegs you are comparing the same grade? One grade is shown with jaggies, the other smooth.

oOWonderBreadOo

Canon EOS-5D

07/20/2005 08:18:16 PM · #4

I'm confused- are you working with the RAW file at all? or is that not your question?

07/20/2005 08:20:56 PM · #5

He's asking why the jpeg embedded with the RAW is of lower quality than a straight jpeg shot at the same size.

Make sure that the quality selected for the embedded jpeg is the same quality as the straight jpeg quality.

Tamron AF 28-300mm f/3.5-6.3 XR Di LD Aspherical IF for Canon

07/20/2005 09:00:48 PM · #6

I'm sorry for the confusion. The picture shown is the L-JPG file that is attached to the RAW file when shooting in the "RAW + L-JPG" mode.

This JPG seems to be of better quality than when I shoot in JPG only.

Comparing L-JPG to L-JPG but in different modes. Seems to have better quality when I use the L-JPG from the Raw+JPG mode than just shooting in jpg only mode. And both jpg setting were the same.

Hope I explained it ok... Kinda odd..

RAW + L-JPG = The L-JPG seems to be better than shooting in L-JPG mode only.

Sorry if it sounds confusing.

Message edited by author 2005-07-20 21:04:18.

07/20/2005 09:02:03 PM · #7

Originally posted by SDW65:

That's the size setting for the jpeg. What's the quality setting?

Message edited by author 2005-07-20 21:09:24.

Tamron AF 28-300mm f/3.5-6.3 XR Di LD Aspherical IF for Canon

07/20/2005 09:05:34 PM · #8

Originally posted by cpanaioti:

Originally posted by SDW65:
I'm sorry for the confusion. The picture shown is the L-JPG file that is attached to the RAW file when shooting in the "RAW + L-JPG" mode.

This JPG seems to be of better quality than when I shoot in JPG only.

Comparing L-JPG to L-JPG but in different modes. Seems to have better quality when I use the L-JPG from the Raw+JPG mode than just shooting in jpg only mode. And both jpg setting were the same.

Hope I explained it ok... Kinda odd..

That's the size setting for the jpeg. What's the quality setting?

Comparing High Quality to High Quality. Just different modes. I was wondering if the compression of the jpg in the raw mode has less loss.

Canon EF 24-70mm f/2.8L USM

07/20/2005 09:11:39 PM · #9

lossless and jpeg is really an oxymoron but there may be a slightly different compression algorithm applied. Otherwise it doesn't make sense.

Maybe the incamera processing which is normally applied to a jpeg shot isn't applied to the embedded jpeg.

Just guessing though.

Message edited by author 2005-07-20 21:12:54.

dwterry

Canon EOS-1D Mark III

07/20/2005 09:25:51 PM · #10

edit: I guess my questions were answered while I was sleeping at the wheel. :-)

Message edited by author 2005-07-20 21:27:08.

Tamron AF 28-300mm f/3.5-6.3 XR Di LD Aspherical IF for Canon

07/21/2005 08:29:38 AM · #11

Bump for today

PaulMdx

Canon EOS-1D

Canon EF 70-200mm f/2.8L USM

07/21/2005 08:35:26 AM · #12

Without shooting in identical conditions, one pic with RAW+Jpeg, one just Jpeg, I don't think you can draw any conclusions.

Prof_Fate

07/21/2005 09:53:49 AM · #13

I don't understand this RAW+jpg thing - can someone help me?
Perhaps my rebel does not do it? I installed the undutchables hack which either permits it or lets you change the size/quality of the jpg...when i DL from my flash card i see CRW and THM files. If the JPGHis embedded in the CRW, why bother? I need to open it to convert to JPG or if hte jpg is inside, then i need to open it to pull that info out..same work, so why bother?

Marjo

Canon EOS-7D

Canon EF 70-200mm f/2.8L IS USM

07/21/2005 10:00:58 AM · #14

I've just recently started shooting in raw and my system won't let me open it. I guess I need to install more software. Time to read the manual again. I was wondering the same thing about the jpeg with raw vs. just jpeg amd was wanting to do the same comparison.

PeterC

Canon EOS-7D

Canon EF-S 18-135mm f/3.5-5.6 IS STM

07/21/2005 10:03:22 AM · #15

Ok I don't have a canon but when I have shot RAW + Jpeg I haven't seen a difference between the jpegs but as said unless it is back to back test it's hard tell

07/22/2005 09:51:34 AM · #16

Hope you don't mind, I have a similar question, I shot RAW and are unable to open the files ( unless I use canon digital photo pro, which needs to be downloaded one at a time)(yikes 350 shots)I have Photoshop CS2...I am I missing something?

07/22/2005 09:54:36 AM · #17

Originally posted by bjallen:

First thing to check would be the version of the RAW plugin you have. I believe the latest is 3.1 though the 20D was probably supported with a little earlier version.

Nikon AF-S NIKKOR 24-70mm f/2.8G ED

07/22/2005 09:57:00 AM · #18

I did that...was 2.0 upgraded to 3.0..still didn't work i downloaded to thr plug-ins file

Neil

Fujifilm X-T30

07/22/2005 10:04:30 AM · #19

Originally posted by Prof_Fate:

On the 300D, the jpegs are EMBEDDED in the RAW file, not separate. And they are at lower res. A program like Breezebrowser (free trial, www.breezesys.com) can extract them in one simple step.

07/22/2005 10:05:00 AM · #20

Originally posted by bjallen:

I did that...was 2.0 upgraded to 3.0..still didn't work i downloaded to thr plug-ins file

Next thing, verify that the plugin is in the right place.

Install instructions :

//www.adobe.com/special/photoshop/pdfs/CR_31_readme.pdf

Message edited by author 2005-07-22 10:05:28.

07/22/2005 10:16:37 AM · #21

AHA! Thanks for the help...I also found another thread on this topic under SOTWARE in the Forum section...FYI I think I may have upgrade the canaon software as well.. Idon't get why JPG+RAW works fine, All I want to do is take GREAT PIX!

Falc

Canon EOS-1D Mark III

07/22/2005 10:17:13 AM · #22

Originally posted by bjallen:

Get hold of a copy of RAWshooter Essentials - its free and allows you to see all the RAW files and then convert them in either single mode or in batch.