Resurrecting Pentax firmware hacking

novsky · 05-15-2015, 05:58 AM - **1 Like**

Hi bobbotron,

As you can see (link below) with:
2 cactus v5 or V6 (as remote shutter) and 1 or more V6 as flash trigger, you can use HSS with the right delay (for my K3&70-200 => 94ms).
I try from 1/180 up to 1/8000 with same delay and no curtain shadow !
Thx again to ClassA for helping with cactus products.

Hope it help
HyperSync / HSS with the V6 (without dedicated equipment) - Cactus Community

tempelorg · 05-17-2015, 03:51 PM - **2 Likes**

Everyone: I've started some hacking on the FluCard, in case anyone here is interested. It's a Linux-based system, with ARM7 executables.

Link to thread: https://www.pentaxforums.com/forums/22-pentax-camera-field-accessories/295676...ml#post3256469

BTW, may I also suggest that any findings here are documented somewhere public, maybe at wikia.org? Digging thru this long thread has become quite difficult.

bootcoder · 05-17-2015, 08:15 PM

Originally posted by tempelorg

BTW, may I also suggest that any findings here are documented somewhere public, maybe at wikia.org? Digging thru this long thread has become quite difficult.

There is a WIKI

tempelorg · 05-18-2015, 01:38 AM

Originally posted by bootcoder

There is a WIKI

Oops, right. And it's even linked to in the first post. Meh, that's why I suck at this. I am not paying enough attention

It doesn't look like the Wiki hasn't been updated lately at all, though. My post was about asking all contributors to remember to add to such a wiki. Doesn't seem to happen. Or is this Shodan's private wiki?

bootcoder · 05-18-2015, 05:07 AM

I guess every person can register and contribute, isn't it ?
I will try to find time soon to add my stuff.

tempelorg · 05-19-2015, 10:06 AM

Has anyone tried to read the Lens data from a K-3? Because I tried and it doesn't seem to work - choosing the "LENS ROM DAT CAMERA=>SD" command from the debug menu doesn't write a file, and the display only flickers very briefly when pressing the OK button. On the other hand, on my K-5, the same command works, with the screen blacking out for about a second during the operation.

I wonder if this feature has been disabled in the firmware or if it's just me. I'd like to know if others tried and had success with the K-3.

**bobbotron** · 05-19-2015, 11:09 AM

Originally posted by novsky

Hi bobbotron,

As you can see (link below) with:
2 cactus v5 or V6 (as remote shutter) and 1 or more V6 as flash trigger, you can use HSS with the right delay (for my K3&70-200 => 94ms).
I try from 1/180 up to 1/8000 with same delay and no curtain shadow !
Thx again to ClassA for helping with cactus products.

Hope it help
HyperSync / HSS with the V6 (without dedicated equipment) - Cactus Community

Totally, although that requires three cactus flashes. It would be nice if there was a "fire the flash regardless of flash sync speed ceiling" mode where it'd trigger your flash at higher speeds for compatibility with manual HSS flashes.

novsky · 05-20-2015, 02:20 AM

Originally posted by bobbotron

Totally, although that requires three cactus flashes. It would be nice if there was a "fire the flash regardless of flash sync speed ceiling" mode where it'd trigger your flash at higher speeds for compatibility with manual HSS flashes.

@All, sorry for the digression...
@bobbotron => Nope u don't need cactus flashes, i use that technique with 2xV5, 3xV6 (cactus triggers) and 1 Pentax 540 FGZ, 1 Metz AF 58 and 1 Metz AF 50 as flashes.

**bobbotron** · 05-21-2015, 08:04 AM

Originally posted by novsky

@All, sorry for the digression...
@bobbotron => Nope u don't need cactus flashes, i use that technique with 2xV5, 3xV6 (cactus triggers) and 1 Pentax 540 FGZ, 1 Metz AF 58 and 1 Metz AF 50 as flashes.

Right! I reread that link, I get it now. Still, wouldn't be awesome if you could override the built in speed limit, and trigger a HSS flash directly via a sync cable or something?

**pasorro** · 05-22-2015, 04:55 AM

Hello

I opened debug mode in my k5 v1.15 with pk theter software, I made a too strong front focus correction -110Um .
now I have back focus and need to re open the debug mode. when I exit from debug mode, I closed debug mode
but now I cant open it with pktheter and the next files also don´t work

00077430.505
DEVELOP.MOD
into the file develop mode:[OPEN_DEBUG_MENU]
leaving card door open

what am I doing Wrong?

Thanks , and sorry Bad english

tempelorg · 05-22-2015, 06:42 AM

pasorro, my K-5 has an empty "DEVELOP.MOD" file and two files named "00077430.505" and "00077760.502", both with just "[OPEN_DEBUG_MENU]" inside. All files stored at the root of the SD card. I put that card into the K-5, leave the door open and turn the camera on. That opens the debug menu. No need for pktether.

It looks like you put the text into the wrong file.

bootcoder · 05-25-2015, 08:19 AM - **3 Likes**

K-S1 movie encoder/decoder chip identified. It is famous "ribery" chip from Fujitsu. Bitrates up to 64 MBps could be possible, but huge work must be done before.

zosxavius · 05-25-2015, 09:11 AM

Originally posted by bootcoder

K-S1 movie encoder/decoder chip identified. It is famous "ribery" chip from Fujitsu. Bitrates up to 64 MBps could be possible, but huge work must be done before.

Do we have an actual part number? I would like to see a datasheet on its specs.

PiDicus Rex · 05-26-2015, 05:00 AM

Originally posted by bootcoder

It is famous "ribery" chip from Fujitsu.

Which other models is that chip used in?
( Yeah, yeah, I'm readin' the Wiki too,.. )

bootcoder · 05-29-2015, 12:44 PM

Originally posted by PiDicus Rex

Which other models is that chip used in?

Used for example in Nikon D800.

05-18-2015, 05:07 AM	#500
bootcoder Banned Join Date: Oct 2014 Posts: 93	I guess every person can register and contribute, isn't it ? I will try to find time soon to add my stuff. Last edited by bootcoder; 05-18-2015 at 05:14 AM.

05-22-2015, 04:55 AM	#505
pasorro Site Supporter Join Date: May 2010 Posts: 132	K5 open debug , anybody can help me? Hello I opened debug mode in my k5 v1.15 with pk theter software, I made a too strong front focus correction -110Um . now I have back focus and need to re open the debug mode. when I exit from debug mode, I closed debug mode but now I cant open it with pktheter and the next files also don´t work 00077430.505 DEVELOP.MOD into the file develop mode:[OPEN_DEBUG_MENU] leaving card door open what am I doing Wrong? Thanks , and sorry Bad english

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05-15-2015, 05:58 AM - 1 Like	#496
novsky Forum Member Join Date: Sep 2010 Posts: 63	Hi bobbotron, As you can see (link below) with: 2 cactus v5 or V6 (as remote shutter) and 1 or more V6 as flash trigger, you can use HSS with the right delay (for my K3&70-200 => 94ms). I try from 1/180 up to 1/8000 with same delay and no curtain shadow ! Thx again to ClassA for helping with cactus products. Hope it help HyperSync / HSS with the V6 (without dedicated equipment) - Cactus Community

05-17-2015, 03:51 PM - 2 Likes	#497
tempelorg Senior Member Join Date: Apr 2011 Location: Munich Photos: Gallery Posts: 203	Everyone: I've started some hacking on the FluCard, in case anyone here is interested. It's a Linux-based system, with ARM7 executables. Link to thread: https://www.pentaxforums.com/forums/22-pentax-camera-field-accessories/295676...ml#post3256469 BTW, may I also suggest that any findings here are documented somewhere public, maybe at wikia.org? Digging thru this long thread has become quite difficult.

05-17-2015, 08:15 PM	#498
bootcoder Banned Join Date: Oct 2014 Posts: 93	Originally posted by tempelorg BTW, may I also suggest that any findings here are documented somewhere public, maybe at wikia.org? Digging thru this long thread has become quite difficult. There is a WIKI

05-18-2015, 01:38 AM	#499
tempelorg Senior Member Join Date: Apr 2011 Location: Munich Photos: Gallery Posts: 203	Originally posted by bootcoder There is a WIKI Oops, right. And it's even linked to in the first post. Meh, that's why I suck at this. I am not paying enough attention It doesn't look like the Wiki hasn't been updated lately at all, though. My post was about asking all contributors to remember to add to such a wiki. Doesn't seem to happen. Or is this Shodan's private wiki?

05-19-2015, 10:06 AM	#501
tempelorg Senior Member Join Date: Apr 2011 Location: Munich Photos: Gallery Posts: 203	Has anyone tried to read the Lens data from a K-3? Because I tried and it doesn't seem to work - choosing the "LENS ROM DAT CAMERA=>SD" command from the debug menu doesn't write a file, and the display only flickers very briefly when pressing the OK button. On the other hand, on my K-5, the same command works, with the screen blacking out for about a second during the operation. I wonder if this feature has been disabled in the firmware or if it's just me. I'd like to know if others tried and had success with the K-3.

05-19-2015, 11:09 AM	#502
bobbotron Site Supporter Join Date: Jan 2015 Location: Ottawa, ON Photos: Gallery Posts: 3,349	Originally posted by novsky Hi bobbotron, As you can see (link below) with: 2 cactus v5 or V6 (as remote shutter) and 1 or more V6 as flash trigger, you can use HSS with the right delay (for my K3&70-200 => 94ms). I try from 1/180 up to 1/8000 with same delay and no curtain shadow ! Thx again to ClassA for helping with cactus products. Hope it help HyperSync / HSS with the V6 (without dedicated equipment) - Cactus Community Totally, although that requires three cactus flashes. It would be nice if there was a "fire the flash regardless of flash sync speed ceiling" mode where it'd trigger your flash at higher speeds for compatibility with manual HSS flashes.

05-20-2015, 02:20 AM	#503
novsky Forum Member Join Date: Sep 2010 Posts: 63	Originally posted by bobbotron Totally, although that requires three cactus flashes. It would be nice if there was a "fire the flash regardless of flash sync speed ceiling" mode where it'd trigger your flash at higher speeds for compatibility with manual HSS flashes. @All, sorry for the digression... @bobbotron => Nope u don't need cactus flashes, i use that technique with 2xV5, 3xV6 (cactus triggers) and 1 Pentax 540 FGZ, 1 Metz AF 58 and 1 Metz AF 50 as flashes.

05-21-2015, 08:04 AM	#504
bobbotron Site Supporter Join Date: Jan 2015 Location: Ottawa, ON Photos: Gallery Posts: 3,349	Originally posted by novsky @All, sorry for the digression... @bobbotron => Nope u don't need cactus flashes, i use that technique with 2xV5, 3xV6 (cactus triggers) and 1 Pentax 540 FGZ, 1 Metz AF 58 and 1 Metz AF 50 as flashes. Right! I reread that link, I get it now. Still, wouldn't be awesome if you could override the built in speed limit, and trigger a HSS flash directly via a sync cable or something?

05-22-2015, 06:42 AM	#506
tempelorg Senior Member Join Date: Apr 2011 Location: Munich Photos: Gallery Posts: 203	pasorro, my K-5 has an empty "DEVELOP.MOD" file and two files named "00077430.505" and "00077760.502", both with just "[OPEN_DEBUG_MENU]" inside. All files stored at the root of the SD card. I put that card into the K-5, leave the door open and turn the camera on. That opens the debug menu. No need for pktether. It looks like you put the text into the wrong file.

05-25-2015, 08:19 AM - 3 Likes	#507
bootcoder Banned Join Date: Oct 2014 Posts: 93	K-S1 movie encoder/decoder chip identified. It is famous "ribery" chip from Fujitsu. Bitrates up to 64 MBps could be possible, but huge work must be done before.

05-25-2015, 09:11 AM	#508
zosxavius Veteran Member Join Date: Jan 2012 Location: Somewhere, USA Photos: Gallery Posts: 458	Originally posted by bootcoder K-S1 movie encoder/decoder chip identified. It is famous "ribery" chip from Fujitsu. Bitrates up to 64 MBps could be possible, but huge work must be done before. Do we have an actual part number? I would like to see a datasheet on its specs.

05-26-2015, 05:00 AM	#509
PiDicus Rex Veteran Member Join Date: May 2013 Location: Melbourne, Australia Posts: 1,381	Originally posted by bootcoder It is famous "ribery" chip from Fujitsu. Which other models is that chip used in? ( Yeah, yeah, I'm readin' the Wiki too,.. )

05-29-2015, 12:44 PM	#510
bootcoder Banned Join Date: Oct 2014 Posts: 93	Originally posted by PiDicus Rex Which other models is that chip used in? Used for example in Nikon D800.