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A590IS porting...

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Offline cyro

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Re: A590IS porting...
« Reply #500 on: 18 / December / 2008, 18:23:11 »
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Hi duves,

I'm not sure if I see this correctly on your pictures, but - is that a single button cell in that remote trigger? As far as I know, these are rated at max. 3.0 V. According to these old entries here...

Quote from: gho on 23 / October / 2008, 13:02:09
Quote from: fgagnon on 20 / October / 2008, 21:25:13
@ cyro - A 3V battery may not be enough. e.g.: the A570IS is reported to need 4.5V
ref: CameraFeatures - CHDK Wiki

Concerning the remote shutter release cable, I can confirm that a 3V CR2032 did not work, so I am using a 4.5 V 3R12 battery. It seems to work.

...you might need a higher voltage. You could stack 3 button cells of a 1.5 V type, for example. Or you could use the 3R12 type that gho mentioned, although that wouldn't fit into your casing.

Hope this helps,
cyro

PS: You can test if it would work at all, by simply setting the camera up for remote triggering, and then connect it via USB to a computer - which connects 5 V to the cam.

PPS: Did you make that box yourself? Including LED and everything? Nice work!  :blink:
« Last Edit: 18 / December / 2008, 18:31:56 by cyro »
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Offline duves

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Re: A590IS porting...
« Reply #501 on: 19 / December / 2008, 03:26:35 »
Hi cyro.
Thanks for your reply.
1.Yes, I have single button battery 3V CR 2032 (battery box is from my old destroed motherboard). Is not it true?
2.Yes, this box is my work. This box is from pencil sharpener. Box include one red LED.
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A590IS, Kyocera M410R
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Offline opilion

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Re: A590IS porting...
« Reply #502 on: 19 / December / 2008, 13:53:01 »
Quote from: Psychon@ut on 14 / December / 2008, 11:05:11
I wonder does A590 IS have hardware capabilities for making videos in 30 fps at resolution 640x480(and which part of camera's hardware is responsible for that?)? I hope someone will succeed to "unlock" that feature :), if it's possible. Good luck!

This comment has been raised several times in this thread. I can't imagine there would be a hardware limitation preventing the A590IS from capturing 640x480@30fps - even the older A series cameras did that. Also, it is using the DIGIC III Image Processor which is the same engine used in much higher-end models.

I believe that this is strictly a marketing imposed limitation to help differentiate and sell their higher-end models. The A590IS is quite a capable little camera, and it is quite disappointing that Canon would stoop to such tactics.

If this could be handled via CHDK, there would be a lot of happy A590IS owners. It might also force Canon's hand to release updated firmware that enables it natively.

I guess what I'm saying is PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE :)
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Offline duves

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Re: A590IS porting...
« Reply #503 on: 20 / December / 2008, 09:16:36 »
Heureka!
A have working remote trigger!
Picasa Web Albums - duves - Canon A590IS
My box has Li-ion battery (from my old mobile phone) 3,7 V.
Picasa Web Albums - duves - Canon A590IS
Multimeter showed 4,13 - 4,14 V
Picasa Web Albums - duves - Canon A590IS
This foto with remote trigger:
Picasa Web Albums - duves - Canon A590IS
Whim, cyro, thank you for yours consult!

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A590IS, Kyocera M410R
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Offline Psychon@ut

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Re: A590IS porting...
« Reply #504 on: 20 / December / 2008, 15:56:23 »
Quote from: opilion on 19 / December / 2008, 13:53:01
...it is using the DIGIC III Image Processor which is the same engine used in much higher-end models.

I believe that this is strictly a marketing imposed limitation to help differentiate and sell their higher-end models. The A590IS is quite a capable little camera, and it is quite disappointing that Canon would stoop to such tactics...
I agree with that, but i doubt that Canon will release firmware update that enables 30fps at highest resolution, it's clearly that they made this move to enforce us to buy more expensive models that have that feature. Let's hope CHDK developers will find way how to "unlock" those 30fps!
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Offline harpman71

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Re: A590IS porting...
« Reply #505 on: 23 / December / 2008, 06:50:57 »
I have noticed that using a aperture F 11 the results are photos with a lot of noise. Is this normal?, There are some parameters that I have to adjust to improve this? Greetings
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Offline whim

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Re: A590IS porting...
« Reply #506 on: 23 / December / 2008, 07:49:45 »
@harpman

i guess it is normal, if that results in too high an ISO value ... how about disabling AutoISO

wim
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Offline harpman71

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Re: A590IS porting...
« Reply #507 on: 23 / December / 2008, 10:40:39 »
@ wim

Thanks, I will check this
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Offline obsidian

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Re: A590IS porting...
« Reply #508 on: 25 / December / 2008, 12:08:01 »
On A710IS i have zebra working since i have chdk. but since December i have problems: zebra crashes (LCD picture frozen OR camera shuts down insantly, in some build works, but in other builds crashes when shooting with zebra instanly after startup.) I think in build<600 OK


 bad thread delete
« Last Edit: 25 / December / 2008, 12:10:05 by obsidian »
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A710IS + 4GB SanDisk Ultra II
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Offline tcollin

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  • SX30IS - A590IS - ELPH300HS - SX260HS
Re: A590IS porting...
« Reply #509 on: 29 / December / 2008, 09:42:41 »
Quote from: Coutts on 27 / November / 2008, 01:26:40
found another bug.

the dark frame subtraction option does nothing, even if i set it to off it still shoots a dark frame

=/

i wanted to shoot some star trails tonight, but looks like i won't be =(

with dark frame subtraction on, there would be gaps in the trails from where it stopped to shoot a dark frame between exposures.

anyone else have this problem?

Noise reduction is now fixed. Thanks to ewavr we can now take astronomy pictures with the A590. ::)
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