A590IS porting... - page 89 - DryOS Development - CHDK Forum  

A590IS porting...

  • 968 Replies
  • 352429 Views
*

Offline dvip

  • ****
  • 451
Re: A590IS porting...
« Reply #880 on: 10 / December / 2012, 20:23:34 »
Advertisements
One interesting thing about the A590is, the minimum iso you can set is, iso 80,
but on Easy Mode the A590is sometimes can take an image using iso 74, or that's what you get in the DNG file.
 

*

Offline mngc

  • ***
  • 113
  • a590is fw 1.0.1b & sx110is fw 1.0b
Re: A590IS porting...
« Reply #881 on: 17 / January / 2013, 12:33:33 »
Hi a590 users!

I confused with the extra long exposure time overides. I have a590is fw 1.0.1b. Currently i think max. possibly exposure is 7min 40sec. Over this time, near totally black image exposured.

I lots of play with not extreme overides, for example in original camera manual mode set to 1/25sec, and i set the 1sec overides with chdk. I use 60 watt lamp light source, and iso80 and f8. I exposure lots of picture. The result, lots of picture ok, the image looks like 1sec exposured. Some images looks like 1/25sec exposured. Some images near black, looks like very short time exposured.

I created the table, with tv96 values for longest to shortest exposure time. I created too a lua script to set tv96 value. This script set the tv96 value, and exposure one picture.

a590is users, can you help me? Test required to overrides working ok always with various overrides?  Be careful, script executed and overrides really set?

Thanks

*

Offline dvip

  • ****
  • 451
Re: A590IS porting...
« Reply #882 on: 21 / March / 2013, 21:06:58 »
The A590is also boots faster with a 4GB FAT16 card.
I think the partition on the 8GB card slows things down.

I know that recently, some work was done in the booting code for some cameras.
I wonder if the A590is was one of them, I hope, I like the A590is.
 

Re: A590IS porting...
« Reply #883 on: 21 / March / 2013, 21:12:44 »
I know that recently, some work was done in the booting code for some cameras.
I wonder if the A590is was one of them, I hope, I like the A590is.
The recent boot code changes removed a little bit of unnecessary code in the initial stages of the boot load.  Time wise we are talking microseconds of difference and it was certainly nothing that would cause FAT16 or FAT32 cards to boot differently.

Sorry.
Ported :   A1200    SD940   G10    Powershot N    G16


*

Offline nafraf

  • *****
  • 1308
Re: A590IS porting...
« Reply #884 on: 07 / July / 2013, 18:27:59 »
A590 101b, new version attached:
* port rewritten using code_gen tool
* filewritetask implemented
* boot.c rewritten: capt_seq_task and init_file_modules_task added to taskCreateHook(int *p)
* Modifications to platform_camera, suggested here
  #define CAM_EV_IN_VIDEO             1
  #undef  CAM_CAN_SD_OVER_NOT_IN_MF

Please test if everything is working ;)
« Last Edit: 09 / July / 2013, 18:43:48 by nafraf »

Re: A590IS porting...
« Reply #885 on: 08 / July / 2013, 00:17:04 »
In 1.1, the A590is subject distance override at infinity is 52855, not 65535.  Why is that?

*

Offline dvip

  • ****
  • 451
Re: A590IS porting...
« Reply #886 on: 08 / July / 2013, 01:33:23 »
A590 101b, new version attached:
* port rewritten using code_gen tool
* filewritetask implemented
* boot.c rewritten: capt_seq_task and init_file_modules_task added to taskCreateHook(int *p)
* Modifications to platform_camera, suggested here
  #define CAM_EV_IN_VIDEO             1
  #undef  CAM_CAN_SD_OVER_NOT_IN_MF

Please test if everything is working ;)

@nafraf,
I just tested the new port using the code_gen tool on my A590IS-101b and it works great.

You may also want to take a look at this bug.
If you set:
CHDK Settings->OSD Settings->Miscellaneous Values->Show Misc Values [Shoot]
it behaves as:
CHDK Settings->OSD Settings->Miscellaneous Values->Show Misc Values [Always]


*

Offline blackhole

  • *****
  • 862
  • A590IS 101b
    • Planetary astrophotography
Re: A590IS porting...
« Reply #887 on: 08 / July / 2013, 04:10:14 »
Quote
A590 101b, new version attached:
* port rewritten using code_gen tool
* filewritetask implemented
* boot.c rewritten: capt_seq_task and init_file_modules_task added to taskCreateHook(int *p)
* Modifications to platform_camera, suggested here
  #define CAM_EV_IN_VIDEO             1
  #undef  CAM_CAN_SD_OVER_NOT_IN_MF

Please test if everything is working

Thanks for that.
I tried your version and filewritetask works great.
CAM_EV_IN_VIDEO I'm trying on before and never worked very well, if you're recording a dark scene just does not respond, you have to expose the sensor briefly to the bright light and then sometimes respond,maybe is this reason why was commented in the platform_camera. I never noticed that enabling this has some negative effects.
This is a much better solution, but I do not know if it works on all cameras, I've tried it with A530, A590 and A1100, and works well.


*

Offline nafraf

  • *****
  • 1308
Re: A590IS porting...
« Reply #888 on: 08 / July / 2013, 08:45:18 »
Thanks for that.
I tried your version and filewritetask works great.
thanks for report. Could you confirm if photo overrides are working? I modified the hook, so I'd like to be sure that it is still working.

Quote
CAM_EV_IN_VIDEO I'm trying on before and never worked very well, if you're recording a dark scene just does not respond, you have to expose the sensor briefly to the bright light and then sometimes respond,maybe is this reason why was commented in the platform_camera. I never noticed that enabling this has some negative effects.
This is a much better solution, but I do not know if it works on all cameras, I've tried it with A530, A590 and A1100, and works well.
OK, I'll remove CAM_EV_IN_VIDEO.

*

Offline blackhole

  • *****
  • 862
  • A590IS 101b
    • Planetary astrophotography
Re: A590IS porting...
« Reply #889 on: 08 / July / 2013, 09:50:26 »
@nafraf
I sent you a PM

 

Related Topics