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Forum: Pentax News and Rumors 03-31-2018, 09:12 PM  
K-1 Mark II April 20th 2018 Go On Sale
Posted By polaco
Replies: 47
Views: 7,421
so you created the jpg in camera? on the K3II i always used DCU5 to trasnsform the pixelshift shot into a tiff and then work on it on ps or lr, as in my experience those softwares doesn't process pixel shifted shots accordingly.
Forum: Pentax DSLR Discussion 02-10-2018, 12:07 PM  
Resurrecting Pentax firmware hacking
Posted By polaco
Replies: 728
Views: 230,169
is there a way to modify K3II firmware, I would like to enable dialing the astrotracer magnetic declination compensation manually, should be quite simple.
My main programming knowledge is by far java, however i could catch up with c, and c++ ( havenīt used them in 10 years ).
So first i would need to decompile the K3II firmware, which i don't know which tool to use.
Then editing, if possible and then compiling it again.
In my mind it doesn't seem to be complicated, for sure the camera is maintaining some kind of magnetic declination compensation internally so the new functionallity would just need to allow me to change that value, that's it.
An alternative would be to make the camera to read that value from the sd file.
Ideas?

ps: I have downloaded https://github.com/i-am-shodan/PentaxFirmwareTool
I compiled it and tried it to decrypt the K3II firmware that is in the zip provided by pentax, however the process fails as the XOR.key provided in PentaxFirmwareTool does not match firmware size.
I wonder were did they got that xor.key and how could i get the one for k3II. If the non encrypted version is available then calculating the xor file would be easy, providing they are still using same xor approach.
pps: well after reading a bit, it seems efforts on hacking pentax firmware has been abandoned, and if it is pure assembly i guess i would be dead.
Forum: Pentax News and Rumors 01-24-2017, 06:07 AM  
Pentax "KP" DSLR registered in Indonesia
Posted By polaco
Replies: 1,319
Views: 137,995
Karma Police
Forum: Pentax DSLR Discussion 09-28-2016, 07:15 AM  
Vote here in survey/poll about Pentax DSLR firmware improvements requested
Posted By polaco
Replies: 46
Views: 3,301
for bulb mode i would like to have the same option that in astrotracer, to be able to dial the exposure time. that is inconsisten astrotracer and bulb both should allow this and not only astrotracer mode.
Forum: Pentax DSLR Discussion 09-12-2016, 06:03 PM  
K3II + AF360FGZ + Cactus V6 II - Help Buying
Posted By polaco
Replies: 6
Views: 1,039
Ohh ok, everything clear now! thanks a lot for your explanations!!!
Forum: Pentax DSLR Discussion 09-12-2016, 05:06 PM  
K3II + AF360FGZ + Cactus V6 II - Help Buying
Posted By polaco
Replies: 6
Views: 1,039
so i need to buy two? one for the flash and one for the camera?
Forum: Pentax DSLR Discussion 09-12-2016, 04:05 PM  
K3II + AF360FGZ + Cactus V6 II - Help Buying
Posted By polaco
Replies: 6
Views: 1,039
Hi,
I was wondering how shall i do to use K3II + AF360FGZ + cactus V6 II.

Cactus V6 II HSS Wireless Flash Transceiver| CACTUS
If i buy this:
Cactus Wireless Flash Transceiver V6 II DICFLAWFTV6II B&H Photo

Does it come with the tx for the camera and rx for the flash or do i need something else?

Any suggestions?
thanks you!
Forum: Pentax K-3 06-29-2016, 09:31 PM  
Successor to K3ii - care to guess when?
Posted By polaco
Replies: 178
Views: 24,069
I own the K3II... so
no higher res needed so current MP shall be fine, nor flash either.

better iso performance would be great
better afc would be welcome
wifi/bluethoot/nfc whatever support would be nice
tilting screen as K1 would rock!
please keep the astrotracer and gps!
more focus points would be welcome too
any improvement on SR and pixel shift would be welcome
automatic lens calibration?

however the thing i would prefer most is that Tamron and Sigma start doing K mount lens again!
Forum: Pentax K-3 04-24-2016, 04:28 PM  
Concert shot with K-3 and Sigma 18-35.
Posted By polaco
Replies: 28
Views: 7,073
great shots! I was pretty impressed about this lens ( the sigma 18-35 f1.8 ) until i read in many reviews it had lots of autofocus issues when using the viewfinder.
Have you experienced such issues in your K3?

ps:sorry I have seen you have already posted your experiences in the upper responses to this thread, thanks for sharing
Forum: Pentax K-3 03-03-2016, 08:26 AM  
My first pixel shift test: Owl
Posted By polaco
Replies: 37
Views: 5,021
but... do you think moon shots are suitable for pixelshift? honestly i dont think so as moon moves when the shots are being taken. I have also tried it but i got sharper and better results with single shots... just a thought...
Forum: Pentax K-3 02-12-2016, 12:59 PM  
GPS Calibrations problems K3II
Posted By polaco
Replies: 42
Views: 5,354
yes :D
Forum: Pentax K-3 02-12-2016, 09:08 AM  
GPS Calibrations problems K3II
Posted By polaco
Replies: 42
Views: 5,354
well it would not surprise me, the issue is how can i report it and if they will ever dare to investigate it...
Forum: Pentax K-3 02-12-2016, 07:56 AM  
GPS Calibrations problems K3II
Posted By polaco
Replies: 42
Views: 5,354
Yes ordinary calibration goes flawlessly. I can calibrate it pretty fast.
Forum: Pentax K-3 02-12-2016, 05:44 AM  
My first pixel shift test: Owl
Posted By polaco
Replies: 37
Views: 5,021
thanks you very much David!
Forum: Pentax K-3 02-12-2016, 05:40 AM  
GPS Calibrations problems K3II
Posted By polaco
Replies: 42
Views: 5,354
Hell yeah!!! :D
At one moment I also thought it could be a south pole thing but then it sounded a bit weir to me so i discarded that possibility.
But then being two with the same problem makes me re think on that again... A southies problem maybe?
I think i shall have mentioned that in the incident i reported to pentax but i did not.
At this moment, after so many calibration attempts... makes me want to kill the Japanese guy in the calibration video.
Forum: Pentax K-3 02-11-2016, 07:18 PM  
GPS Calibrations problems K3II
Posted By polaco
Replies: 42
Views: 5,354
Hi Tjompen,

Sorry I don't have another K3II to test, in fact I'm pretty sure mine might be the only one in all my country ( Argentina ).
I did another pentax yoga session today like 45 minutes and still never got a success, not even once.

Sandy, i know Astrotracer is not for moon shots, thanks.

I guess i will do more tests tomorrow just to give it a last chance.
Forum: Pentax K-3 02-11-2016, 05:45 PM  
GPS Calibrations problems K3II
Posted By polaco
Replies: 42
Views: 5,354
something i have noticed after trying to see some hidden detail is that in the video, when the japanese guy turns a bit and does the second calibration... at that point the camera is already displaying the OK message. At least it looks like for me.
well i have no cell phone with me, not near a car, i have a garlic hanging in my neck and holy water in a cup, a crucifix in my chest, a rabbit leg in my pocket and a 4 leaf clover in the other... still nothing. Maybe I need to do some prays to St Pentax.
Forum: Pentax K-3 02-11-2016, 05:34 PM  
My first pixel shift test: Owl
Posted By polaco
Replies: 37
Views: 5,021
Hi!

I am impressed about the difference.
Does anyone knows if Ligthroom CC read pixelshift shots properly?
I read it has added compatibility, but I don't know exactly what that means...

thanks!
Forum: Pentax K-3 02-11-2016, 06:21 AM  
GPS Calibrations problems K3II
Posted By polaco
Replies: 42
Views: 5,354
Hi!

For "precise calibration" generally I do yaw, pitch, roll a few times. Then I change my orientation a bit and again. Then I change my orientation again and same until I get the "fail" message.

For "calibration" I do yaw, pitch, roll then i turn myself a bit i do yaw and the "success" message appears.

Honestly, I dont know what else to do.

thanks,
Fede.
Forum: Pentax K-3 02-10-2016, 09:08 PM  
GPS Calibrations problems K3II
Posted By polaco
Replies: 42
Views: 5,354
Hi, thanks for the tips.
Today I tried again, considering the tips.
So before starting my daily Pentax Yoga movements I also checked that the camera was leveled with the in camera level.
I tried the precise calibration like 15 more times ( i count the times from the moment i start the calibration until the calibration failed message appears).
I did as the guy in the video, even with more precise movements trying to keep the camera in the axis being rotated each time, tried changing my orientation, and nothing.
So far this is some kind of evil Yoga that instead of relaxing generates loads of anger in me and frustration each time the calibration fails. A test to ones patient and perseverance.
This is not what i would call a nice user experience, not at all so far. :(
Forum: Pentax K-3 02-09-2016, 04:58 PM  
GPS Calibrations problems K3II
Posted By polaco
Replies: 42
Views: 5,354
Today i went to a field, far away from the city. No structures or houses in 200meters around.
All the attempts to do the precise calibration failed, I tried like 20 times.
In contrast each single time i did the regular calibration succeeded at once.
I still refuse to believe this is a hardware issue, maybe is more related to firmware, and im not in a region affected by volcanoes or nothing like that, not even mountains.
Still ASTROTRACER seems to work, maybe is not working as accurate as it could be?
I'm a bit pissed off about this, is a great feature.
If someone has an advice please let me know.


thanks you!

ps: I sent an incident report through that web form available at pentax web, to my surprise, K3II was not even listed between the products just the K3...
Forum: Pentax K-3 02-09-2016, 09:52 AM  
GPS Calibrations problems K3II
Posted By polaco
Replies: 42
Views: 5,354
I am also having a hard time doing the precise calibration.
I went to an open field, it might have 40 by 40 meters square. I guess is open enough. No large buildings nearby just small houses.
The calibration runs perfectly smooth. However the precise calibration never succeeds.
I really refuse to believe that the camera has a fault. It would be great if the camera could tell which axis calibration failed or something like that.
So one could try to improve on it or i dont know some more useful message than just "failed".
Maybe even they could create a wizard that calibrates each axis independently and that displays some kind of graphical hint related to the movement.
Having this in a bios update would be nice. Looks like Pentax left the K3II in oblivion, there is not even a video regarding precise calibration just an old one about the external gps calibration.
K3II is an incredible camera, it deserves more attention.
Today i will go to an open field outside the city and try precise calibration again by 50th time.
Forum: Troubleshooting and Beginner Help 02-07-2016, 01:24 PM  
Calibrating the astrotracer on K3ii
Posted By polaco
Replies: 7
Views: 2,726
Hi!
sorry to bring this thread back to life. But i have fallen in this issue. I cant get precise calibration to succeed.
I have attempted the accurate calibration process like 40 times, never succeeded. The non precise calibration worked like a charm.
I have tested it outdoors, pointing to different places, with gps on, off, 20 meters away from houses and nothing seems to work.
Any idea?
Forum: Pentax SLR Lens Discussion 06-08-2015, 10:24 PM  
Super multi coated takumar 50mm f1.4 advice needed
Posted By polaco
Replies: 11
Views: 1,339
Well, I have finally be able to get the lens in my hands and I have done some tests, it is to late so.. I tried what I could this is the set of shots I have done, so far I'm very happy with this lens and I'm sure I can get much better results.
K50+super takumar ( 7 elements, 8 blades tests ): https://www.flickr.com/gp/polacofede/b21kx9
The only issue so far is that I haven't been able to get catch in focus to work, as soon as I press the shutter it takes the photo.
I am sure that I have set focus priority on ( so camera should not attempt to fire when not in focus ), also im using aperture ring on, catch in focus on, mode "M".
When I half press the shutter release and start focusing the camera detects when something gets in focus, and then I can shoot if I want to. However if nothing is focused and I press the shutter it just takes the shot, no matter if there is something focused or not. It seems odd to me.


Edit: regarding the catch in focus issue , please see: http://www.dpreview.com/forums/post/55957879
Forum: Pentax SLR Lens Discussion 06-01-2015, 07:38 PM  
Super multi coated takumar 50mm f1.4 advice needed
Posted By polaco
Replies: 11
Views: 1,339
jatrax,
I thought about buying the original but since it was not going to be able to reach in time I went for the 3rd party adapter.
This is the post regarding pin stuck: https://www.flickr.com/groups/takumar_50mm_f14/discuss/72157624363548210/
starts like : "There is also a rather pointless little extra pin that needs to be ..."
I think that the other day when I was walking around I saw an original M43 to Pentax K adapter, I will get back there on sunday to see if im lucky and find it again.
thanks you

---------- Post added 06-01-15 at 08:02 PM ----------

btw in the end I got scared and ordered in Amazon the original Pentax Mount Adaptor B and paid almost for shipping than for the adaptor :(
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