Pixalo Photography Community

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

General photography questions and answers: Discuss RAW query......Hi folks - got a query here...just got a canon 400D and I'm generally shooting in RAW mode and when ...
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 23-09-2007, 20:10   #1 (permalink)
Been here a while
 
Join Date: Feb 2007
Location: weardale
Posts: 352
mr cat is on a distinguished roadmr cat is on a distinguished road

Image editing O.K.
User's Gallery
RAW query...

Hi folks - got a query here...just got a canon 400D and I'm generally shooting in RAW mode and when I want to upload onto flickr I use the canon software 'Digital Photo professional' (DPP) to convert into .jpeg files...
I'm using the default output resolution of 350dpi (and everything else) - but some pics aren't as sharp as the RAw images...is this down to compression alone, or is there anything else I can do to tweak it so to speak..?

cheers
mr cat is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 23-09-2007, 20:51   #2 (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: RAW query...

Compression shouldn't affect sharpness very much.

What really matters is the actual size in pixels at which you want to display in flickr. You can then resize the original to suit. The 'native dpi' setting is not strictly relevant, but most monitors display at about 72dpi and it is normal to use this by default for web images. Also make sure that you convert to sRGB colourspace for the web (and any other applications that are not colourspace aware.)

I've not used DPP for ages and certainly not to resize for the web, but can I make a suggestion? If you convert to full-size TIFF or JPEG as you would normally, and then resize using the Faststone Image Viewer which is free and seems to do a pretty good job of resizing, as well as being a good browser and slideshow utility.

FastStone Image Viewer, Screen Capture, Photo Resizer ...

You can also use Photoshop, Paint Shop Pro or any decent image editor for resizing. I believe that Photoshop has a 'Save for Web' function but this seems to strip out the EXIF data which you may want to keep.
silkstone is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 24-09-2007, 10:53   #3 (permalink)
Been here a while
 
Join Date: Feb 2007
Location: weardale
Posts: 352
mr cat is on a distinguished roadmr cat is on a distinguished road

Image editing O.K.
User's Gallery
Re: RAW query...

yeah, forgetting about files specifically for the web - I'm initially concerned about the lack of sharpness when I mearly convert files from raw to jpeg...

what can be done to overcome this vis dpp - or even cs2...but thats a pain as I have to convert the image into anoth raw format the cs2 can understand...

what do you lot on here do..??
mr cat is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 24-09-2007, 11:22   #4 (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: RAW query...

RAW is just the 'raw' sensor data, and it can be read by Adobe Camera RAW (ACR) which is a front end to Photoshop, although you need the version which supports your camera.

By default the images may be rather soft - you always need some sharpening with digital images to counteract the effect of the anti-aliasing filter in front of the sensor. The in-camera JPEG conversion has quite a bit of sharpening built in. You can set DPP to use one of the conversion styles available in the camera - 'Standard' has quite a bit of sharpening and should produce a good result although perhaps a bit too contrasty for some purposes. 'Neutral' has a flatter tone curve and less sharpening iirc.

I use Bibble to produce a full-size, low-compression JPEG, and then resize for the web using Faststone (Windows) or gThumb (Linux). Most people use Photoshop (with ACR) and/or Lightroom. The ideal sharpening does depend on the resolution, but I find that resizing from a final full-size TIFF or JPEG usually gives decent results.
silkstone is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 24-09-2007, 11:27   #5 (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: RAW query...

ALL dSLR images are soft when in-camera - part of the post processing should be to sharpen for it's destination (i.e. different for printing vs website)

I process RAW to TIF, save for printing/distribution, resize for web and then sharpen that image
Markulous is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 24-09-2007, 18:43   #6 (permalink)
Forum Regular
 
danpen's Avatar
 
Join Date: Oct 2005
Location: West Yorkshire
Posts: 885
danpen is just really nicedanpen is just really nice
danpen is just really nicedanpen is just really nicedanpen is just really nicedanpen is just really nice

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: RAW query...

What Markulous said, spot on.

cheers

Dan
danpen is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 24-09-2007, 23:19   #7 (permalink)
Been here a while
 
Join Date: Feb 2007
Location: weardale
Posts: 352
mr cat is on a distinguished roadmr cat is on a distinguished road

Image editing O.K.
User's Gallery
Re: RAW query...

ok, I've been playing with DPP, converted it to 8 bit .tif (output resolution 100dpi) then sharpened the .tif version - but baring in mind that the DPP has 2 options - the RAw image adjustment and the RGB image adjustment...I'm only using the latter (obviously, with me no longer working on the raw image)...and yup, you've guessed it...! - it's not much better than the jpeg...

original pic (jpeg) here -



and modifed jpeg here -


shame that these aren't as sharp as the raw image tho...

Last edited by mr cat; 24-09-2007 at 23:40.
mr cat 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
new camera query... mr cat General photography questions and answers 6 03-09-2007 10:37
query! Sian Barnell Which Camera Should I Buy? 2 14-06-2007 20:07


All times are GMT +1. The time now is 21:40.


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