Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
09-13-2010, 05:36 AM   #31
New Member




Join Date: Mar 2008
Posts: 19
Yes, tested on my K20D.

09-13-2010, 05:38 PM   #32
Inactive Account




Join Date: Aug 2010
Location: Roaming Free.
Posts: 26
Original Poster
I guess then you need to add a file with [ENABLENR] 1@ or [DISABLENR] 0@ to switch back?

Or does the camera automatically switch back when leaving Debug mode? So I could simply carry one flash card with the debug data and one without switching back and forth between no DFS and DFS? That'd be pretty convenient for longer travels without PC which I do pretty often.

Last edited by WordsOfFarewell; 09-13-2010 at 06:01 PM.
09-13-2010, 07:14 PM   #33
Loyal Site Supporter




Join Date: Jun 2009
Location: Tumbleweed, Arizona
Photos: Gallery | Albums
Posts: 5,107
I remembered a while back seeing a website that had debug information listed for Pentax.

Pentax Debug mode

Scrolling down to the SYSPARM file section ...
FORCENR Forces noise reduction
DISABLENR Disables noise reduction
I am wondering if 2 smaller SD cards of say 256K - one to turn it off and the other to turn it back on.

I would have thought that noise reduction would have been more oriented at the other JPG noise reduction capabilities as opposed to DFS.

Interesting developments....
09-13-2010, 07:32 PM   #34
Site Supporter
LeoTaylor's Avatar

Join Date: Feb 2007
Location: Connecticut
Photos: Gallery
Posts: 679
As a K100D owner I have been reading for a couple of years how dismayed the newer camera owners are with the inability to turn off long exposure NR. From what I read it is the CMOS sensor cameras that lack the option because they are noisy for long exposures. I know an accessory that will fix the problem! Just buy a used K100D for a few hundred bucks. It is sometimes better to have a separate camera for special jobs like night photography than force a camera that is unsuitable. Used Pentax DSLRs are so cheap these days, less then some people spend on a one lens.

When I do Star Trails I set the exposure to 30 seconds, NR off, and Continuous Mode. I attach the simple Pentax mechanical remote (basically just a locking button), connect a external supply, and let it run for hours. When done I put on the lens cap and take a few dark frames of 30 sec.

The German program StarTrails does the stacking and the dark subtraction.

www.Startrails.de-Home

09-14-2010, 07:29 AM   #35
New Member




Join Date: Mar 2008
Posts: 19
QuoteOriginally posted by interested_observer Quote
I am wondering if 2 smaller SD cards of say 256K - one to turn it off and the other to turn it back on.
No need.
In the modset file :
[OPEN_DEBUG_MENU]

Power-on with sd slot open will bring the debug menu.
You can choose to turn on or turn off debug mode.

If debug mode is off, sysparam file is ignored so DFS 'on' or 'auto'.
09-14-2010, 07:58 AM   #36
Inactive Account




Join Date: Aug 2010
Location: Roaming Free.
Posts: 26
Original Poster
QuoteOriginally posted by darky_mtp Quote
No need.
In the modset file :
[OPEN_DEBUG_MENU]

Power-on with sd slot open will bring the debug menu.
You can choose to turn on or turn off debug mode.

If debug mode is off, sysparam file is ignored so DFS 'on' or 'auto'.
Woah, that is indeed awesome.

Hope to get clear skies to test this tonight.
09-14-2010, 09:26 AM   #37
Veteran Member
glasbak's Avatar

Join Date: Apr 2009
Location: Netherlands
Posts: 346
Check this thread : https://www.pentaxforums.com/forums/pentax-dslr-discussion/109720-k20d-bad-sensor-banding.html
09-14-2010, 01:07 PM   #38
Senior Moderator
Loyal Site Supporter
Nass's Avatar

Join Date: Aug 2009
Location: The British Isles
Photos: Gallery
Posts: 2,251
Hello,

Fyi I played with this command in sysparam whilst in debug and it does diddlysquat to eliminate the K-7's DFS. Great if it works for your K20D =)

Anyone here who is also a K-7 owner able to mail this fellow? I can't see his email address otherwise I might ask him some questions, he seems to have explored some aspects of this. Thanks

09-14-2010, 01:17 PM - 2 Likes   #39
New Member




Join Date: Mar 2008
Posts: 19
I made a package ready to use : http://darky.is-a-geek.net/debug_mode/disable_dfs.zip
Tested on my K20D, tell me if it works for you.
09-15-2010, 08:33 AM   #40
Forum Member




Join Date: Feb 2009
Location: Manila, Philippines
Posts: 97
I can verify that the DFS zip file works fine on my K20D firmware 1.04

When I tried creating MODSET.442 and SYSPARAM.TXT myself, things didn't work out.. I believe it's because pentaxhack doesn't list any MODSET.XXX for firmware 1.04..
09-16-2010, 11:45 PM   #41
Inactive Account




Join Date: Aug 2010
Location: Roaming Free.
Posts: 26
Original Poster
QuoteOriginally posted by orly_andico Quote
I can verify that the DFS zip file works fine on my K20D firmware 1.04

When I tried creating MODSET.442 and SYSPARAM.TXT myself, things didn't work out.. I believe it's because pentaxhack doesn't list any MODSET.XXX for firmware 1.04..
Ok, tried it with the MODSET.442 and SYSPARAM.TXT from the DFS.zip and it worked fine. Now I only wonder if the camera takes any damage of some sort when using it without NR since otherwise Pentax just could've given us an off switch in the first place.

Btw. does anyone know if damages caused by playing with the debug mode are covered by the waranty?

But first of all a big thanks going out to darky_mtp.

I guess you don't mind if I spread the word?
09-17-2010, 01:11 AM   #42
New Member




Join Date: Mar 2008
Posts: 19
You can spread the word :-)

DO NOT ALTER SETTINGS in debug mode other than focus correction.
DFS do not protect the sensor as far as I know.
09-17-2010, 01:46 AM   #43
Veteran Member




Join Date: Nov 2008
Location: New York, NY
Posts: 387
Will test this with k20d now

edit: Worked perfectly! Thank you Now to find a way to disable SDM and we'll be all set!

Last edited by systemA; 09-19-2010 at 05:06 PM.
12-08-2010, 09:47 PM   #44
Forum Member




Join Date: Feb 2009
Location: Manila, Philippines
Posts: 97
anyone gotten this working with a K-x?

other sources say you need a MODSET.492 for the K-x

Have not been able to check (no K-x for me)
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, dfs, dslr, exposures, forums, k20d, k7, photography, stack, startrails, thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
DFS hack eccentricphotography Pentax DSLR Discussion 24 10-12-2010 11:08 AM
Night Bulb mode startrails.. a question really bergmania Post Your Photos! 2 12-02-2009 04:23 AM
DFS question WillCarney Pentax DSLR Discussion 8 11-20-2009 06:03 PM
K-7 long exposures without DFS SelrahCharleS Pentax DSLR Discussion 1 07-22-2009 04:01 AM
Is DFS necessary? joefru Pentax DSLR Discussion 2 07-05-2008 08:20 PM



All times are GMT -7. The time now is 03:28 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