Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-11-2016, 11:30 AM   #1
Moderator
Loyal Site Supporter
BigMackCam's Avatar

Join Date: Mar 2010
Location: North East of England
Posts: 6,120
High ISO noise reduction in post-processing - weird...

I've just been reading the Pentax K-70 First Look: Sample Photos article, and I downloaded the ISO 51,200 night shot to compare with my K-3. It looks good, but I've noticed that the K-70 file doesn't seem to respond as well to Lightroom 6's luminance noise reduction. Stranger still, Google Nik Dfine2 (which does a stellar job on my K-3 ISO 51,200 files) seems to do nothing at all with the K-70 file (see the attached screen-shot, with the left side of the image as shot, and the part to the right of the red line with noise reduction applied). And if I manually adjust the noise reduction levels rather than accepting Dfine 2's default analysis, it still has no effect. Has anyone else noticed this? It's *weird*...

Other than that, the high ISO files look good, although I did notice quite a lot of white pixels in that ISO 51,200 shot, which struck me as a little odd on a 1/125s shot

Attached Images
 
08-11-2016, 11:57 AM   #2
Moderator
Loyal Site Supporter
BigMackCam's Avatar

Join Date: Mar 2010
Location: North East of England
Posts: 6,120
Original Poster
UPDATE: If I manually measure the noise of a particular area in Dfine 2, it is then able to analyse it and the noise reduction works... it just seems to have a problem automatically analysing the files. Same at ISO 25,600 and 102,400 also... strange.

Last edited by BigMackCam; 08-11-2016 at 12:18 PM.
08-11-2016, 04:10 PM - 1 Like   #3
Senior Member




Join Date: Feb 2009
Location: Almada - Portugal
Photos: Gallery
Posts: 159
I did not experience that problem with Google Nik Dfine2 - it applied automatic noise reduction, as can be seen by this similar image.
Note - Dfine 2 was launched from Photoshop CS5 and not Lightroom.
Attached Images
View Picture EXIF
 Photo 
08-20-2016, 01:33 PM   #4
Pentaxian




Join Date: Sep 2012
Location: NY
Photos: Gallery
Posts: 2,204
I recently downloaded Nik Dfine 2. When I went to load a JPEG file when I first used it, I found it was looking only for Dfine type files, and did not allow me to open a JPEG. I wonder if I should just uninstall it or if there is another approach to open the JPEG for editing (noise reduction). I guess maybe it does not open them as a stand alone program or something, but I am not sure.


Last edited by C_Jones; 08-20-2016 at 05:31 PM.
08-20-2016, 03:08 PM - 1 Like   #5
Senior Member




Join Date: Feb 2009
Location: Almada - Portugal
Photos: Gallery
Posts: 159
Hello

Maybe this helps with you question: software - Can the Nik Collection be used without Photoshop or Lightroom? - Photography Stack Exchange

Note: I have not tried it myself.

Best regards,
08-20-2016, 03:40 PM   #6
Pentaxian




Join Date: Sep 2012
Location: NY
Photos: Gallery
Posts: 2,204
QuoteOriginally posted by ddharriman Quote
Hello

Maybe this helps with you question: software - Can the Nik Collection be used without Photoshop or Lightroom? - Photography Stack Exchange

Note: I have not tried it myself.

Best regards,
Thanks.

---------- Post added 08-20-16 at 07:34 PM ----------

In the thread that was mentioned to me in the previous post, I discovered that what you do is make a copy of the file you want to rid the noise of, make a copy of that file and paste it on top of the Dfine 2 exe file. Dfine 2 then opens up the file and presents it in the software. I tried a jpeg file and the automatic setting handled the majority of the obvious noise. I also tried moving the denoise bar a little more than the automatic setting had applied and that was effective also. Thanks again to ddharriman.

Last edited by C_Jones; 08-20-2016 at 05:31 PM.
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!
copy, file, files, iso, iso noise reduction, k-3, k-70, k70, noise, pentax k-70, post, reduction, shot, software, thanks
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
K-3 High ISO Noise Reduction and Loss of Detail (With Pictures!!) stevebrot Pentax K-3 19 12-11-2014 07:38 PM
High ISO noise reduction settings? Dewman Digital Processing, Software, and Printing 4 05-30-2012 05:13 AM
Nikon high ISO noise reduction? MidwestMax Non-Pentax Cameras: Canon, Nikon, etc. 4 03-30-2010 02:09 PM
Noise reduction: in camera or on post-processing? paulusta Pentax DSLR Discussion 12 09-06-2008 12:22 PM
High ISO Noise Reduction on K20D - Does it do anything in RAW? ksignorini Pentax DSLR Discussion 4 07-23-2008 03:53 AM



All times are GMT -7. The time now is 05:34 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