Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-19-2017, 07:58 PM   #16
Veteran Member




Join Date: Dec 2010
Location: Ontario
Photos: Gallery
Posts: 3,332
QuoteOriginally posted by jpzk Quote
I finally settled the "problem" ... direct to CS5 --- Camera RAW --- TIFF (or a high quality JPEG) = no banding !
As I also told Steve: also works with DCU5.
Cheers!
Excellent

Do try the different compression settings. Depending on your end use, the highest quality jpeg settings may deliver no noticeable improvement over more modest settings but at cost of a much higher file size (web use is definitely a case to dial back the quality, obviously not too far)

02-19-2017, 08:11 PM   #17
Site Supporter
Site Supporter
jpzk's Avatar

Join Date: Jan 2009
Location: Québec
Photos: Gallery | Albums
Posts: 7,917
Original Poster
QuoteOriginally posted by BrianR Quote
Excellent

Do try the different compression settings. Depending on your end use, the highest quality jpeg settings may deliver no noticeable improvement over more modest settings but at cost of a much higher file size (web use is definitely a case to dial back the quality, obviously not too far)
Good idea.
Thanks!
02-19-2017, 08:26 PM   #18
Otis Memorial Pentaxian
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 37,950
QuoteOriginally posted by jpzk Quote
TIFF it shall be.
Edit: I posted this after you contributed your improved result. I think you figured it out.

Probably Not needed. I do primarily landscape shooting and seldom (almost never) have problems with banding. The formula goes like this:
  • Capture at a high bit-depth. For current market dSLRs that means a maximum of 14-bit color with capture to either RAW or TIFF. Note that many consumer-model cameras (e.g. K-50) capture at 12-bit maximum in RAW.
  • Process at high bit-depth using non-destructive editing
  • If you must reduce bit-depth, do so only as a final step when publishing to that file format (e.g. JPEG)
  • Be aware that some plug-ins and popular features of some programs (e.g. Adobe Elements) are often 8-bit only. If you must use them, do the reduction in bit depth as a final step and not as a destructive edit.
  • If you must apply additional JPEG compression, do so only as a final step when publishing to the compressed file.
  • If you must capture as JPEG, take care to avoid radical changes to global contrast or abrupt curve modification. Avoid editing a compressed JPEG, the results are seldom good.
  • Be aware that swaths of pure primary colors (red, green, blue) are more prone to banding than other hues
In practice, for most images and using my available tools this means:
  • Shoot in RAW with my K-3
  • Do most (almost all) edits in Lightroom
  • If an external editor is needed, use LR's "edit in" feature to create a 14-bit TIFF or PSD for use in the external editor
  • Export as JPEG when publishing to the Web or for e-mails or social media using minimal compression, if any
Steve

Last edited by stevebrot; 02-19-2017 at 08:53 PM.
02-19-2017, 08:54 PM   #19
Site Supporter
Site Supporter
jpzk's Avatar

Join Date: Jan 2009
Location: Québec
Photos: Gallery | Albums
Posts: 7,917
Original Poster
QuoteOriginally posted by stevebrot Quote
Edit: I posted this after you contributed your improved result. I think you figured it out.

Probably Not needed. I do primarily landscape shooting and seldom (almost never) have problems with banding. The formula goes like this:
  • Capture at a high bit-depth. For current market dSLRs that means a maximum of 14-bit color with capture to either RAW or TIFF. Note that many consumer-model cameras (e.g. K-50) capture at 12-bit maximum in RAW.
  • Process at high bit-depth using non-destructive editing
  • If you must reduce bit-depth, do so only as a final step when publishing to that file format (e.g. JPEG)
  • Be aware that some plug-ins and popular features of some programs (e.g. Adobe Elements) are often 8-bit only. If you must use them, do the reduction in bit depth as a final step and not as a destructive edit.
  • If you must apply additional JPEG compression, do so only as a final step when publishing to the compressed file.
  • If you must capture as JPEG, take care to avoid radical changes to global contrast or abrupt curve modification. Avoid editing a compressed JPEG, the results are seldom good.
  • Be aware that swaths of pure primary colors (red, green, blue) are more prone to banding than other hues
In practice, for most images and using my available tools this means:
Shoot in RAW with my K-3
  • Do most (almost all) edits in Lightroom
  • If an external editor is needed, use LR's "edit in" feature to create a 14-bit TIFF or PSD for use in the external editor
  • Export as JPEG when publishing to the Web or for e-mails or social media using minimal compression, if any
Steve
Wow ! Quite a bit to digest (and learn) ...
I'll just hit the hay (common expression here) and get back to this in the morning.
I'm sure I'll be back with more questions !

03-06-2017, 01:16 PM   #20
Veteran Member




Join Date: Jul 2009
Location: Ottawa, Canada
Posts: 366
QuoteOriginally posted by jpzk Quote
Those images are actual Print Screen shots (direct from computer monitor) while viewing with FastStone viewer. The saved images were then saved as TIFF files and uploaded to Flickr.
I'm coming a bit late to the party, but I can confirm that by default, FastStone displays the embedded JPEG. Depending on the quality of the embedded JPEG, you may or may not see banding and other artifacts. I say that because my K200D embedded a really high quality JPEG in its RAW files. Banding and such was rarely evident. This is not true for my K30.

I use FastStone extensively - it's my browser of choice.

These days, I mostly shoot RAW+JPEG, so when I'm browsing/culling, I look at the JPEGs. If I want to perform simple edits for quick and dirty crops, I will edit the JPEG directly using FastStone. If it needs more sophisticated processing, I will work on the RAW using one of several Raw converters ( usually PDCU or DxO , then Elements if I need to work with layers ).

The fact that FastStone shows you the embedded JPEG is a big advantage - it makes accessing/displaying files so much faster. Others, with a different workflow may not like this feature.
03-06-2017, 02:34 PM   #21
ghl
Senior Member
ghl's Avatar

Join Date: Feb 2008
Location: California
Posts: 117
FastStone also has a setting under the RAW tab in the Settings dialog (F12 on Windows, or Menu>Settings>Settings then RAW tab) where you can select whether FS will show the embedded JPEG or the actual RAW file.
03-06-2017, 02:39 PM   #22
Veteran Member




Join Date: Jul 2009
Location: Ottawa, Canada
Posts: 366
QuoteOriginally posted by ghl Quote
FastStone also has a setting under the RAW tab in the Settings dialog (F12 on Windows, or Menu>Settings>Settings then RAW tab) where you can select whether FS will show the embedded JPEG or the actual RAW file.
But in my experience, that really slows things down, which sort of defeats the purpose. Also, AFAIK, you can't adjust any of the conversion parameters, so the results may end up looking very different from the Camera's JPG output ( none of your custom settings will be applied, no shadow or highlight compensation, etc. ).

What I like about looking at the embedded JPG is that it shows you ( approximately ) what you'd get from PDCU using the camera settings.
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, card, cheers, compression, da*16-50, faststone, files, files k5, image, images, jpeg, k5, levels, login, pentax help, photography, post, print, quality, screen, sd, settings, troubleshooting, viewer, yahoo
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale - Sold: K5, BG-4 and DA*16-50 Gareth.Ig Sold Items 15 04-22-2016 07:20 PM
DA* 16-50 trouble focusing in low light on k5 and kx mth2nd Pentax SLR Lens Discussion 6 03-06-2015 09:29 PM
What's going on? K5, Av and auto-iso drec Pentax K-5 16 09-28-2012 12:06 AM
K5 and DA*16-50 ... How's the AF?? germar Pentax K-5 6 12-20-2010 11:16 AM



All times are GMT -7. The time now is 10:16 PM. | 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