Pixalo Photography Community

Go Back   Pixalo Photography Community > Photography Forums > General photography questions and answers

General photography questions and answers: Discuss DNG Versus The Rest...I am seriously thinking about storing all my picture files in the DNG format. Are there any disadvantages, apart from ...
Welcome to the Pixalo Photography Community. As a Guest you are free to browse the site, but see what extras you get as a Member here.


Reply
 
LinkBack Thread Tools Display Modes
Old 08-11-2007, 09:16   #1 (permalink)
Forum Regular
 
Join Date: Apr 2007
Location: Southwell, Nottinghamshire
Posts: 619
John F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enough

Image editing O.K.
User's Gallery
Users Camera Equipment List
DNG Versus The Rest

I am seriously thinking about storing all my picture files in the DNG format. Are there any disadvantages, apart from the large files?
John F is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 08-11-2007, 09:42   #2 (permalink)
Pixalo Crew
 
Markulous's Avatar
 
Join Date: Jul 2006
Location: Peak District
Posts: 19,640
Markulous is a jewel in the rough
Markulous is a jewel in the roughMarkulous is a jewel in the roughMarkulous is a jewel in the roughMarkulous is a jewel in the roughMarkulous is a jewel in the roughMarkulous is a jewel in the rough

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: DNG Versus The Rest

Hmm, this comes around every couple of months. For anyone who doesn't know, the Digital Negative (DNG) format is a non-proprietary, publicly documented, and widely supported format for storing raw camera data

Advantages
Open to all developers so not tied to a single company
Includes metadata

Disadvantages
Adobe appears to be the only one to have come up with a converter (unsurprising as they are the developer behind DNG)
Images need to be converted, so an extra step

Personally, I'm happy to stick with RAW files for the time being. There's no suggestion that I'll be unabale to run the RAW software on a platform (and so convert my images) for the forseeable future (the main reason that most change to storing DNGs over JPGs/TIFFs/RAWs). I guess with my 2 RAW formats (Sigma and Canon) I might consider converting for long term archive/storage
__________________
~CanonCreativity + SigmaSurReality~
ΜΛЯΚ @ Photobucket
Markulous is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 08-11-2007, 10:37   #3 (permalink)
Loves the place
 
silkstone's Avatar
 
Join Date: Jan 2005
Location: Silkstone Common, Yorkshire, UK
Posts: 5,719
silkstone is a glorious beacon of lightsilkstone is a glorious beacon of light
silkstone is a glorious beacon of lightsilkstone is a glorious beacon of lightsilkstone is a glorious beacon of lightsilkstone is a glorious beacon of lightsilkstone is a glorious beacon of lightsilkstone is a glorious beacon of lightsilkstone is a glorious beacon of lightsilkstone is a glorious beacon of lightsilkstone is a glorious beacon of lightsilkstone is a glorious beacon of lightsilkstone is a glorious beacon of light

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: DNG Versus The Rest

Sorry, Mark, but DNG is proprietary but royalty-free.

There are a few drawbacks. Firstly it isn't a consistent format. The DNG files produced by some cameras (as an alternative to RAW) are not the same as the DNG files you get by using Adobe's converter. Hence some software can read one type but not the other.

Secondly a RAW or camera-generated JPG file contains embedded data specific to that camera. For example, the newer Canon cameras have 'Picture Styles'. It is not possible to include all these variations in the DNG format, so they may be lost when you convert.

My suggestion is to stick with RAW, TIFF and JPG for now. If and when the likes of Canon and Nikon adopt DNG as a native format, then we'll know it's here to stay. Until then, it's just another file format which doesn't bring anything new to the party.
__________________
I answer to "Silky", "Paul" and "miaow".
silkstone is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 08-11-2007, 12:45   #4 (permalink)
Forum Regular
 
Join Date: Apr 2007
Location: Southwell, Nottinghamshire
Posts: 619
John F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enough

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: DNG Versus The Rest

Mark and Silkstone, thank you both very much for your trouble. In view of your comments I will stick with my usual practice of using raw, tiff and jpeg.
John F is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 09-11-2007, 21:19   #5 (permalink)
Forum Regular
 
Dave Canon's Avatar
 
Join Date: Nov 2006
Location: Cheltenham
Posts: 1,290
Dave Canon is just really nice
Dave Canon is just really niceDave Canon is just really niceDave Canon is just really niceDave Canon is just really niceDave Canon is just really niceDave Canon is just really niceDave Canon is just really niceDave Canon is just really niceDave Canon is just really nice
User's Gallery
Users Camera Equipment List
Re: DNG Versus The Rest

Quote:
Originally Posted by John F View Post
I am seriously thinking about storing all my picture files in the DNG format. Are there any disadvantages, apart from the large files?
John, I started converting to DNG from last May. There are some clear advantages:-

a. When editing in the raw converter the parametric data you create is stored in sidecar files if the file is a proprietary camera format. During archiving etc this may become detached from the original raw file so all your settings are lost (this has happened to me). With DNG all the data is stored in the DNG file.

b. You can process DNG files with many earlier versions of Raw Converters so are not forced to upgrade software each time you buy a new Camera.

c. As DNG is an Adobe format and Adobe currently have no serious rivals, I suspect that this format could outlast many of the Camera formats.

d. My DNG files are slightly smaller than the original RAW due to DNG Lossless compression. You can store the original Camera Raw file within the DNG which does make the file large but I do not do that.

Disadvantages

a. The format has not been adopted by Canon or Nikon. However, if it eventially forces them to agree a common approach it will be worth it.

b. It may not be able to store some special camera embedded data though it is apparant that this is either not relevant for my camera or appears not to be a problem for me at this time.

c. Time to convert though as this is done as a batch and it re-titles for me at the same time, it is not really much of a disadvantage.

So mainly because of advantage a (but not forgetting b) I am converting all new files from May to DNG. I have no current plans to convert old files at this time. However, I am still taking a cautious approach and retaining the original Camera Raw files. Given storage is so cheap I am not concerned. I currently have 1.3 T Bytes of disk on my PC and more on the home network. I am effectively backing two horses for very little effort and, if the situation solidifies in the future (i.e. a universal format agreed), I will adopt that instead.

Several folks I know have been forced down the DNG route because they have new camera and old software and not prepared to upgrade. I do have CS3 so I have the choice and it was finely balanced. It is up to you?
__________________
Regards Dave

http://www.image001.co.uk
Dave Canon is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 09-11-2007, 23:58   #6 (permalink)
Forum Regular
 
Join Date: Apr 2007
Location: Southwell, Nottinghamshire
Posts: 619
John F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enoughJohn F will become famous soon enough

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: DNG Versus The Rest

Quote:
Originally Posted by Dave Canon View Post
John, I started converting to DNG from last May. There are some clear advantages:-

a. When editing in the raw converter the parametric data you create is stored in sidecar files if the file is a proprietary camera format. During archiving etc this may become detached from the original raw file so all your settings are lost (this has happened to me). With DNG all the data is stored in the DNG file.

b. You can process DNG files with many earlier versions of Raw Converters so are not forced to upgrade software each time you buy a new Camera.

c. As DNG is an Adobe format and Adobe currently have no serious rivals, I suspect that this format could outlast many of the Camera formats.

d. My DNG files are slightly smaller than the original RAW due to DNG Lossless compression. You can store the original Camera Raw file within the DNG which does make the file large but I do not do that.

Disadvantages

a. The format has not been adopted by Canon or Nikon. However, if it eventially forces them to agree a common approach it will be worth it.

b. It may not be able to store some special camera embedded data though it is apparant that this is either not relevant for my camera or appears not to be a problem for me at this time.

c. Time to convert though as this is done as a batch and it re-titles for me at the same time, it is not really much of a disadvantage.

So mainly because of advantage a (but not forgetting b) I am converting all new files from May to DNG. I have no current plans to convert old files at this time. However, I am still taking a cautious approach and retaining the original Camera Raw files. Given storage is so cheap I am not concerned. I currently have 1.3 T Bytes of disk on my PC and more on the home network. I am effectively backing two horses for very little effort and, if the situation solidifies in the future (i.e. a universal format agreed), I will adopt that instead.

Several folks I know have been forced down the DNG route because they have new camera and old software and not prepared to upgrade. I do have CS3 so I have the choice and it was finely balanced. It is up to you?
Thank you very much Dave.

John.
John F is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Best of the Rest from Yesturday... ise438 Photos for fun 6 25-10-2007 20:32
Road Trip - the rest of the pictures dogdots Photos for fun 4 25-08-2007 05:12
rest of Lyme Regis (56k warning) stupot Photos for fun 10 09-02-2007 08:59
Canon pro9000 versus Epson R1800 letsgohiking Computer hardware, software, networking and internet 10 05-01-2007 08:21
Man versus the sea:) Warspite Photos for fun 16 30-12-2005 23:22


All times are GMT +1. The time now is 18:01.


vBulletin Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
ReviewPost & PhotoPost vB3 Enhanced, Copyright 2003-2014 All Enthusiast, Inc.
SEO by vBSEO 3.3.0
Copyright © 2006 - 2017 Pixalo.com

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197