SX260 HS Porting Thread - page 46 - DryOS Development - CHDK Forum

SX260 HS Porting Thread

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Re: SX260 HS Porting Thread
« Reply #450 on: 22 / October / 2012, 18:29:31 »
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I did the low-level format of the SD card (16 GB), confirmed it was FAT32, copied the files over, and tried the "Firmware Update Method" described on the above page but after doing "Firmware Update..." and confirming, screen just goes black, and it's dead until I take out the battery and re-start
That almost always means you have the wrong firmware version for your camera. How did you determine what version to use ?

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I must admit I'm a little confused about what should be in the vers.req file - leave it empty? put in the Canon firmware version (1.00 rev 2.00)? something else?
You don't need ver.req file for anything but determining the firmware version of your camera.  Its not used by CHDK.  On newer cameras,  that method does not always work.  I'd recommend you use this instead :

http://www.zenoshrdlu.com/acid/acid.html
Ported :   A1200    SD940   G10    Powershot N    G16

Re: SX260 HS Porting Thread
« Reply #451 on: 22 / October / 2012, 20:53:21 »
I did the low-level format of the SD card (16 GB), confirmed it was FAT32, copied the files over, and tried the "Firmware Update Method" described on the above page but after doing "Firmware Update..." and confirming, screen just goes black, and it's dead until I take out the battery and re-start
That almost always means you have the wrong firmware version for your camera. How did you determine what version to use ?

I used CameraVersion - it said version was "100 B", or in the pulldown details it gave Firmware Revision as "1.00 rev 2.00", which I believe is equivalent

but I don't understand what I'm supposed to do with that

I must admit I'm a little confused about what should be in the vers.req file - leave it empty? put in the Canon firmware version (1.00 rev 2.00)? something else?
You don't need ver.req file for anything but determining the firmware version of your camera.  Its not used by CHDK.  On newer cameras,  that method does not always work.  I'd recommend you use this instead :

http://www.zenoshrdlu.com/acid/acid.html

ok - it confirms the above - Firmware version 100b

so what do I actually do with the firmware version info?

wait a sec - I get it now - on the downloads page (http://mighty-hoernsche.de/trunk/) there are three versions under SX260HS:

1.00B
1.00C
1.01A

I had assumed these were versions of CHDK from earlier to more recent - so I grabbed 1.01A

but now I realize I should have grabbed the 1.00B bundle

sorry - I'm a moron - somehow this wasn't clear to me from the various doc pages on the wiki

and... it works - now I need to play around with CHDK itself... looks awesome

-JT

Re: SX260 HS Porting Thread
« Reply #452 on: 22 / October / 2012, 21:01:48 »
I grabbed the latest build from http://mighty-hoernsche.de/trunk/ (sx260hs-101a-1.2.0-2225-full_ALPHA) and followed the instructions here:
http://chdk.wikia.com/wiki/Prepare_your_SD_card
but I can't seem to get the splash screen to appear - any hints or pointers to tricks I should know about?
wait a sec - I get it now - on the downloads page (http://mighty-hoernsche.de/trunk/) there are three versions under SX260HS:
1.00B
1.00C
1.01A
I had assumed these were versions of CHDK from earlier to more recent - so I grabbed 1.01A but now I realize I should have grabbed the 1.00B bundle
Glad you figured it out.  Unfortunatley, you are far from the first person to confuse the firmware version & release level.

The worst part of this (for me) is that you actually had the link to the one page that has correct and current information and this still happened.  I'll go back and look at it yet again but I'm not sure how to make the steps any more clear.
Ported :   A1200    SD940   G10    Powershot N    G16

Re: SX260 HS Porting Thread
« Reply #453 on: 23 / October / 2012, 01:35:25 »
Glad you figured it out.  Unfortunatley, you are far from the first person to confuse the firmware version & release level.

The worst part of this (for me) is that you actually had the link to the one page that has correct and current information and this still happened.  I'll go back and look at it yet again but I'm not sure how to make the steps any more clear.

I'm not sure either - in retrospect it's totally obvious

stupid users...


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Offline mcgd

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Re: SX260 HS Porting Thread
« Reply #454 on: 31 / December / 2012, 22:20:14 »
I've been using one of the betas (beta 5 I think), and switched to the release version, but there is now no menu item to set the ND filter state.  Does anyone know why this disappeared and how I can get it back?  I use this quite a bit.

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Offline reyalp

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Re: SX260 HS Porting Thread
« Reply #455 on: 31 / December / 2012, 23:13:40 »
I've been using one of the betas (beta 5 I think), and switched to the release version, but there is now no menu item to set the ND filter state.  Does anyone know why this disappeared and how I can get it back?  I use this quite a bit.
Are you sure it actually has an ND filter? In the code submitted for svn, HAS_ND_FILTER was undefined. Cameras that have an adjustable aperture and an ND filter (like the G series) generally give you ND control in the Canon firmware. The specs and manual don't mention this, so I'd be quite surprised if it had one.  The option could have appeared in the beta build menu even if the hardware wasn't there, but it wouldn't do anything. The ND filter should change the exposure by 3 stops, so it would be very obvious if it was working.
Don't forget what the H stands for.

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Offline lapser

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Re: SX260 HS Porting Thread
« Reply #456 on: 01 / January / 2013, 00:15:22 »
I have the sx260, and it doesn't have an ND filter. The G1X does have one, but I haven't played with it much. There's a Canon menu option to switch it in and out, without CHDK. The script command for that works too.
EOS-M3_120f / SX50_100b / SX260_101a / G1X_100g / D20_100b
https://www.youtube.com/user/DrLapser/videos

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Offline mcgd

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Re: SX260 HS Porting Thread
« Reply #457 on: 01 / January / 2013, 08:43:50 »
Are you sure it actually has an ND filter? In the code submitted for svn, HAS_ND_FILTER was undefined. Cameras that have an adjustable aperture and an ND filter (like the G series) generally give you ND control in the Canon firmware. The specs and manual don't mention this, so I'd be quite surprised if it had one.  The option could have appeared in the beta build menu even if the hardware wasn't there, but it wouldn't do anything. The ND filter should change the exposure by 3 stops, so it would be very obvious if it was working.

Yes, turning it on definitely reduced exposure.
Case: photographing very bright reflections on water.  Using the max 1/3200s exposure and F/8.0 there are still blown-out highlights.  Turning on ND filter gives substantially darker image, without blown highlights (or with much less).  I can definitely say that it makes a significant difference.  This is very handy for HDR photography.

I read somewhere that the camera had an undocumented ND filter, and mine certainly does seem to.  Could the HAS_ND_FILTER define have been accidentally removed when going from the beta to the release version?  Beta5 definitely has the ND filter option and it definitely does something on my camera.

I've switched back to Beta5 for now.  (BTW, the ND filter option has a bug in Beta5 - when ND is in, half-pressing the shutter button and then releasing it again crashes the camera.  All is fine so long as you actually take a picture.)

EDIT: BTW, activating the ND filter does not affect the preview display until the shutter button is half-pressed, so people testing might think the option has no effect unless they actually take a photo.
« Last Edit: 01 / January / 2013, 08:45:40 by mcgd »


Re: SX260 HS Porting Thread
« Reply #458 on: 01 / January / 2013, 09:06:27 »
Yes, turning it on definitely reduced exposure.
Case: photographing very bright reflections on water.  Using the max 1/3200s exposure and F/8.0 there are still blown-out highlights.  Turning on ND filter gives substantially darker image, without blown highlights (or with much less).  I can definitely say that it makes a significant difference.  This is very handy for HDR photography.
Any chance the camera was just changing the ISO setting in this scenerio ? 
Ported :   A1200    SD940   G10    Powershot N    G16

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Offline mcgd

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Re: SX260 HS Porting Thread
« Reply #459 on: 01 / January / 2013, 09:14:33 »
Any chance the camera was just changing the ISO setting in this scenerio ? 

I don't think so.  ISO would have already been 100, and the minimum effective value on my camera seems to be 80, even when overridden, and 80 vs 100 makes little difference - certainly not enough to account for what I'm getting.

 

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