Canon Hacker's Development Kit

Started Apr 8, 2008 | Discussions
DShwed Regular Member • Posts: 154
Canon Hacker's Development Kit

Anybody tried this out on their 30D??

http://howto.wired.com/wiki/Supercharge_Your_Camera_with_Open-Source_CHDK_Firmware

The CHDK is a firmware add-on for Canon's digital cameras, based on DIGIC II and DIGIC III processors.

The CHDK firmware add-on does not touch the original firmware of camera. It is an additional program which gets loaded into the memory of the cam.

balloonchasers Veteran Member • Posts: 3,189
Re: Canon Hacker's Development Kit

They may want to remove the EXIF data on their " example of the amazing high-speed ".

It shows 1/3200 .....

I think I will leave my camera alone.

John
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neilhd Regular Member • Posts: 155
Re: Canon Hacker's Development Kit

Why would you want 1/60,000? Surely everything will just be black?

Anyway, it's not for DSLRs, only P&Ss.

FoolyCooly Veteran Member • Posts: 3,484
Re: Canon Hacker's Development Kit

It's a good way to "Brick" your camera. I'd only try this if your extremely comfortable with programming.

nickleback Forum Pro • Posts: 11,111
Re: Canon Hacker's Development Kit

neilhd wrote:

Why would you want 1/60,000? Surely everything will just be black?

There's this thing called "flash". Quite useful in such situations.

Anyway, it's not for DSLRs, only P&Ss.

Yes, too bad. The ability to script (i.e. write your own programs) is nice.

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nickleback Forum Pro • Posts: 11,111
Re: Canon Hacker's Development Kit

FoolyCooly wrote:

It's a good way to "Brick" your camera.

Not! chdk doesn't replace the firmware, it runs on top of it. If your camera crashes, reboot (turn off and on).

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Lemming51
Lemming51 Forum Pro • Posts: 15,249
For a select few PowerShots, not EOS.

http://chdk.wikia.com/wiki/FAQ#Q._What_camera_models_are_supported_by_the_CHDK_program.3F

DShwed wrote:

Anybody tried this out on their 30D??

http://howto.wired.com/wiki/Supercharge_Your_Camera_with_Open-Source_CHDK_Firmware

The CHDK is a firmware add-on for Canon's digital cameras, based on
DIGIC II and DIGIC III processors.

The CHDK firmware add-on does not touch the original firmware of
camera. It is an additional program which gets loaded into the memory
of the cam.

 Lemming51's gear list:Lemming51's gear list
Canon EOS 40D Canon EF-S 15-85mm f/3.5-5.6 IS USM Canon EF 70-200mm f/2.8L USM Canon EF 50mm F1.8 II Canon EF-S 55-250mm f/4-5.6 IS STM +5 more
BadtzMaru Senior Member • Posts: 2,565
Re: For a select few PowerShots, not EOS.

Glad to see someone reads the read me.

customminds Senior Member • Posts: 1,282
haha - too funny.

balloonchasers wrote:

They may want to remove the EXIF data on their " example of the
amazing high-speed ".

It shows 1/3200 .....

Thats just too funny. Someone at wired didn't do their research when the submitted that article.

I think I will leave my camera alone.

John
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ussery Regular Member • Posts: 275
Re: Canon Hacker's Development Kit

If it aint broke dont fix it. I cant imagine what I would need 60/000 of a second on or how it would even take a picture.

 ussery's gear list:ussery's gear list
Canon EOS 40D Canon EF 70-300mm f/4-5.6 IS USM Canon EF 28-135mm F3.5-5.6 IS USM Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF) Canon EF 50mm F1.8 II
submagination Senior Member • Posts: 1,078
I tried it - A710 IS

I was mainly drawn to the ability to output raw files from my P&S, but there were problems with PhotoShop reading them (CR2). I probably could have written them to DNG's, but I wanted some consistency with what my 30D's writing, so I didn't bother.

It's very easy to use and the risk factor is exceptionally low (since it doesn't touch your existing firmware in any way), but the one real benefit I was looking for didn't work in any meaningful way for my workflow.

mistry Junior Member • Posts: 44
Re: I tried it - A710 IS

Two main selling points for me:
1. RAW on my P&S
2. it does not overwrite my firmware.

There are many times (esp in low light) where my SD550 takes an underexposed picture. I am definitely curious to see if shooting RAW helps in post.

From what i am reading, this project is in its infancy and will take some time before there are more tools that can be installed on our cameras. I personally am quite excited about the prospects that this project brings.

Habemus_Canon Senior Member • Posts: 2,437
ISO and EXIF not always connected

customminds wrote:

balloonchasers wrote:

They may want to remove the EXIF data on their " example of the
amazing high-speed ".

It shows 1/3200 .....

Thats just too funny. Someone at wired didn't do their research when
the submitted that article.

Um, dude, do you realise that you can alter the ISO without altering
what the camera writes to EXIF? And vice-versa, you can alter the
what the EXIF says the ISO setting was without altering the actual ISO.

 Habemus_Canon's gear list:Habemus_Canon's gear list
Canon PowerShot SD600 Canon PowerShot S90 Canon PowerShot S100 (2000) Canon EOS 350D Canon EOS 7D +14 more
balloonchasers Veteran Member • Posts: 3,189
Re: ISO and EXIF not always connected

Not talking about ISO but that's cool dude...

If they can change it... why didn't they change the shutter speed to an amazing 1/60,000 instead of leaving it at 1/3200 ?

John
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nickleback Forum Pro • Posts: 11,111
Re: ISO and EXIF not always connected

balloonchasers wrote:

If they can change it... why didn't they change the shutter speed to
an amazing 1/60,000 instead of leaving it at 1/3200 ?

At f/3.5 the fastest shutter speed for the S3 IS is 1/1600. That image would not be possible without chdk.

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balloonchasers Veteran Member • Posts: 3,189
Re: ISO and EXIF not always connected

Not worth the debate... but if you say 1/1600 then that's ok with me...

John
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Bert_vargas
Bert_vargas Senior Member • Posts: 1,577
does not make sense to me

with a P&S, there has to be some shutter lag. How are they able to time the shutter and lag perfectly to capture this shot?

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lulalake Veteran Member • Posts: 3,126
Re: I tried it - A710 IS

You tried it on a 30D?

Thanks

Jules

paul_s_r Junior Member • Posts: 34
Re: does not make sense to me

Guestimation.

I would try this on my SD900 IF it would work for it, but it is not listed...
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nickleback Forum Pro • Posts: 11,111
Re: does not make sense to me

Bert_vargas wrote:

with a P&S, there has to be some shutter lag.

As there is with DSLRs. On a DSLR, the mirror has to flip before the exposure can take place. That takes anywhere from 20ms to 120ms, depending on the camera. I'd guess the 40D is around 60ms.

On a S3 IS, with prefocusing and using the rear LCD, shutter lag is around 100ms. Definitely in the DSLR ballpark.

Some digicams have shutter lag around 10ms, faster than any DSLR.

How are they able to
time the shutter and lag perfectly to capture this shot?

Same as with a DSLR. Take 100 shots and hopefully you'll get a few that work out. In both cases you've got to fire the camera before the drop hits.

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