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SX50 HS porting thread

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Offline srsa_4c

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Re: SX50 HS porting thread
« Reply #80 on: 22 / February / 2013, 17:48:49 »
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Hi,
I need help to find the right setting for fi2.inc.
You can use the following scripts:
http://chdk.wikia.com/wiki/GPL:disassemble.pl and then
http://chdk.wikia.com/wiki/GPL:extract_fi2_keys.py

Re: SX50 HS porting thread
« Reply #81 on: 23 / February / 2013, 12:17:01 »
The iso Settings dont work properly as of yet...

I need to set the ISO to 1100 to get an ISO of 1600

and HQ Burst Crashes the camera untill you flip the switch on the SD card to disable CHDK..

Camera version 100B


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Offline msl

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    • CHDK-DE links
Re: SX50 HS porting thread
« Reply #82 on: 23 / February / 2013, 12:58:30 »
I need to set the ISO to 1100 to get an ISO of 1600

This is not a bug. You set the 'real' ISO value and get the 'market' value. Read the manual: http://chdk.wikia.com/wiki/CHDK_User_Manual#Override_ISO_value

Not quite correct, but for a better overview: realISO x 1.6 = marketISO

msl
CHDK-DE:  CHDK-DE links

Re: SX50 HS porting thread
« Reply #83 on: 24 / February / 2013, 12:36:29 »
I was told this was "proper" but im Not thinking so..............
 
I have been usen the sx40hs for over a year now and CHDK is Stable as a rock and works PROPERLY in it.

There is an "isue" with sx50hs-100B-1.2.0-r2548-full
on my sx50hs 100b

the iso settings are NOT proper ....
If i set the iso @ 1600 it takes a photo with an Iso of 2200
so to get a Iso of 1600 i need to set it to 1100 then i get a photo @ 1600.


This dont work like that with the sx40hs as it IS Correct.....
if i set the Iso to 1600 it takes a photo @ a Iso of 1600
if i set it to 1100 i get a photo @ Iso1100...


so going on what i have been told How is this "Proper" that the sx50hs is this far off?

i have a 300hs and the Iso settings are Proper If i set the Iso to 1600 it takes a photo @ Iso1600
and If i set the Iso to Iso1100  it takes a photo @ Iso1100


And
I also have a sx150is
and the Iso settings are proper setting chdk to Iso1600 it takes a photo @ Iso1600
and If i set the Iso to  Iso1100  it takes a photo @ Iso1100.




and with the Sx50HS you cant use the HQ Burst mode with CHDK if you do the camera crashes.
to use HQ Burst mode you need to unlock the SD card to disable chdk to use it.
« Last Edit: 24 / February / 2013, 14:23:56 by radioman193 »


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Offline lapser

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Re: SX50 HS porting thread
« Reply #84 on: 24 / February / 2013, 14:23:54 »
I was told this was "proper" but im Not thinking so..............
CHDK overrides the ISO using the "real" ISO value. On the SX50 and SX260, the "real" ISO is not the same as the ISO Canon displays in the picture and in their menus. If you set the ISO to 100 using the Canon menus without CHDK, the "real" ISO is 65. 

I agree that CHDK overrides should use the Canon "market" ISO and not the real ISO, to avoid confusion. ISO conversion is something I'm working on that's been on the back burner, so we'll hopefully have a fix of some kind soon. In the mean time, starting with 65 real == 100 market, you can make a table like this by doubling the ISO value of both columns for each new row:

real     market
65      100
130    200
260    400
520    800
1040  1600

Or, if you want 1/3 EV steps, you would multiply by 2^(1/3) instead of 2.

To generalize it in CHDK, each camera needs an sv96 bias value to add to the sv96 computed from the market ISO.
Quote
and with the Sx50HS you cant use the HQ Burst mode with CHDK if you do the camera crashes.
to use HQ Burst mode you need to unlock the SD card to disable chdk to use it.

I don't have this problem with my SX50 100b. Make sure all your CHDK photo overrides are off and see if it still happens. Be extra sure focus overrides are off, since they don't work and can crash the camera.
EOS-M3_120f / SX50_100b / SX260_101a / G1X_100g / D20_100b
https://www.youtube.com/user/DrLapser/videos

Re: SX50 HS porting thread
« Reply #85 on: 24 / February / 2013, 22:37:14 »
So the SX50HS is the Oddball on the Iso then....
as the SX40HS is fine... 1600 IS 1600 in the photo exif data
the 300HS is fine...  1600 IS 1600 in the photo exif data
and the sx150is is fine ....  1600 IS 1600 in the photo exif data


But the SX50HS 1100 is 1600 in the photo exif data.
and 1600 is 2200 in the photo exif data.

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and with the Sx50HS you cant use the HQ Burst mode with CHDK if you do the camera crashes.
to use HQ Burst mode you need to unlock the SD card to disable chdk to use it.
I don't have this problem with my SX50 100b. Make sure all your CHDK photo overrides are off and see if it still happens. Be extra sure focus overrides are off, since they don't work and can crash the camera.

ALL Overrides are OFF...
I get ONE click and CrAsH.
« Last Edit: 24 / February / 2013, 23:07:04 by radioman193 »

Re: SX50 HS porting thread
« Reply #86 on: 24 / February / 2013, 23:12:18 »
Is this Test Build a branch of a SX40HS version ?
or is it a branch of some little pocket camera ?

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Offline reyalp

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Re: SX50 HS porting thread
« Reply #87 on: 24 / February / 2013, 23:43:03 »
Is this Test Build a branch of a SX40HS version ?
or is it a branch of some little pocket camera ?
That's not how it works. Each port is unique.
Don't forget what the H stands for.


Re: SX50 HS porting thread
« Reply #88 on: 24 / February / 2013, 23:56:11 »
So what does this Romlog show ?

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Offline lapser

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Re: SX50 HS porting thread
« Reply #89 on: 25 / February / 2013, 01:18:35 »
So the SX50HS is the Oddball on the Iso then
The SX260 and G1X also use "real" ISO and give the same result.
Quote
ALL Overrides are OFF...
I get ONE click and CrAsH.
The original port has a mistake in the raw buffer addresses. Maybe that's the problem. Try updating with the attached file. Be sure to overwrite all the files in the attached zip, including the modules, onto your current SD card.
EOS-M3_120f / SX50_100b / SX260_101a / G1X_100g / D20_100b
https://www.youtube.com/user/DrLapser/videos

 

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