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Friday, November 09, 2012

Method to Force DFS Off for Pentax DSLRs

A working method with full instructions can be found here:-

http://pentaxda.deviantart.com/journal/Turning-DFS-Off-224124268

For the files that are mentioned and needed, they can be downloaded here directly, if you just don't know how to compile them yourself:-

http://darky.is-a-geek.net/debug_mode/disable_dfs.zip

This may be useful for those who need to do astro-photography in a continuous way without any interruption for longer time exposure per shot.

As for the latest Pentax DSLR models after K-r (i.e., K-r, K-5, K-30, K-5II and IIs) that cannot open the Debug mode by the above method, you can try to use the PK Tether software and then load the SYSPARAM.TXT file at the SD Card Root to see if it works or not! And please let us know about your result if you really try!

Btw, today, I've just come across these photos taken by a Japanese with his EOS 60D and 10-17mm wide angle lens combo. They are quite nice, look:-

http://www.geocities.jp/tpkkagato/
(in Japanese)

N.B. Pentax DSLRs using the Samsung sensors (i.e., K20D and K-7) do not have any option to turn off the DFS (Dark Frame Subtraction) whereas other Pentax DSLRs using the Sony sensors can have the option to turn off DFS for exposure that is not longer than 30 seconds, otherwise DFS is forced to be turned on again.


Related:- 

K-5 and K-r Debug Mode Unleashed, Finally!

Successfully Open the Debug Mode of My K-r! :-)

Comments (5)

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Gabriel Fontes's avatar

Gabriel Fontes · 644 weeks ago

It is not possible to open the debug mode on the K-30, or is it?
Can you help me on that?
2 replies · active 643 weeks ago
Try PK Tether.
Gabriel Fontes's avatar

Gabriel Fontes · 643 weeks ago

PK Tether is not compatible with the K-30...
With K5 PK Tether works correct. But how can it helps in astrophoto? DFS is turn off when you turn off noise reduction on long exp.
I have verify it. http://cs417519.userapi.com/v417519825/778/I7RJXu... http://cs315730.userapi.com/v315730825/1fba/eAOlg...
OT. (didn't know where else to post it, sorry.) http://arstechnica.com/business/2012/11/sonys-fin...
Not Good. "Moody’s noted that rise of smartphones meant a “cannibalization of demand” for low-end digital cameras and even handheld gaming consoles."
While some of their DSLRs are selling well, it is part of the consumer division. Seems this is the same thing Minolta went through. Very innovative and decent products, but never was able to gain market share, profits, and continue on.

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