General EOS 40D development discussion - page 2 - DSLR Hack development - CHDK Forum supplierdeeply
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General EOS 40D development discussion

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Offline DataGhost

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Re: General EOS 40D development discussion
« Reply #10 on: 09 / September / 2008, 10:43:36 »
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Quote from: blubbi on 09 / September / 2008, 07:50:15
Nice work!!!

What I would like to see on my 40D:

  • ISO 50 and 6400 RAW PP

  • Auto ISO which uses full ISO range (50 to 6400) RAW PP
 
  • Micro AF adjustment
  • Scripting support
  • Full flexible auto exposure bracketing (free choice of EV and pictures taken between min/max value)

The sensor only goes from ISO 100 to 1600 as far as I know, and 3200 is just ISO1600 + one stop. ISO 50 is 100 - 1 stop and ISO 6400 is 1600 + 2 stops. I don't really see an advantage for having that in the camera. Only thing may be auto ISO up to 1600 instead of 800.

theDarkHorse: Indeed, it's a strange resolution. I wasn't really thinking :) The camera outputs 720x214 to the display (live view buffer), strange as it may be, and the aspect ratio from that is way off. I just cut it in half (360) while I actually should have used 320. My bad but not important enough to redo my movie thing :p
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Offline martkorn

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Re: General EOS 40D development discussion
« Reply #11 on: 09 / September / 2008, 11:45:03 »
On my original Canon 40d box, there is written "100-1600 ISO range, expandable to L:50 and H:3200".

Of course there isn't any feature in the menus (as of version 1-0-8) ... but maybe, they (the Canon marketing gnomes) have deactivated it... and therefore it could possibly be reactivated.  :D
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Offline DataGhost

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Re: General EOS 40D development discussion
« Reply #12 on: 09 / September / 2008, 12:01:12 »
C.Fn I-3: ISO expansion, enables H (3200). I can't select L anywhere, just H. Also, I don't have such a line on my box (17-85 kit). Anyway, fact remains that it's non-native and just done by the camera's postprocessing.
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Offline Sylvain G.

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Re: General EOS 40D development discussion
« Reply #13 on: 09 / September / 2008, 18:08:58 »
Quote from: DataGhost on 09 / September / 2008, 12:01:12
C.Fn I-3: ISO expansion, enables H (3200). I can't select L anywhere, just H. Also, I don't have such a line on my box (17-85 kit). Anyway, fact remains that it's non-native and just done by the camera's postprocessing.

Not to divert the thread from its original path but AutoISO implementation on 40D is currently lacking a lot to make it meaningful so extending it 1600 is, IMHO, wasted efforts.
I've been thinking this over for a while and observing competitors and it seems a possible work around already lies in the 1D(or s) mkIII custom functions.
Please read :

-quite long I must admit, aging post so a few statements may be wrong as I learnt later.
Canon EOS 50D - 10D Forum: Digital Photography Review

-on CHDK forums, post #8
1D mark3 firmware on 40D

As a sidenote, 1D(s) mkIII still lacks this possibility in M mode, which would be ultimately nice.

Of course, "copying" mkIII C.Fn and logic is one way of doing it and I'd welcome pretty much anything that will vary ISO speed according to user defined thresholds (think "action photography in rapidly changing lighting conditions")

So yes, I'm HEAVILY interested in anything related to hacking/CORRECTING functionalities to the 40D :)

Thanks for reading,

Sylvain
« Last Edit: 09 / September / 2008, 18:12:07 by Sylvain G. »
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Offline lukg

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Re: General EOS 40D development discussion
« Reply #14 on: 09 / September / 2008, 19:22:27 »
 :o  :o
I've always known that Dataghost would have been the Eos pioneer, never had any doubts :D
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Offline aero

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Re: General EOS 40D development discussion
« Reply #15 on: 10 / September / 2008, 04:04:39 »
Quote from: martkorn on 09 / September / 2008, 06:04:02
How about the chances for more pictures (my be 9) with wider EV span (may be +-4EV) in auto exposure bracketing... for HDRI generating?

Indeed, this would be great.
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Offline luca.vascon

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Re: General EOS 40D development discussion
« Reply #16 on: 10 / September / 2008, 09:47:33 »
GREAT!!!
I think movie mode could be a great plus... any idea of the format possible?? How many seconds possible?

GREAT things to have on every DSLR
Fully configurable bracketing, considering who is bracketing for hdr uses 7 to 11 shots at 1.3 stops of difference between shots, who is bracketing for exposure compensation is shooting 3, but one for shadows, one for highlights and one in the middle. I mean, something that has to be configurable as a -3, 0, +1.7 bracketing.
Multispot exposure would be a great addon... like the Olympus OM4 lightmeter...

Finally, a fully ubasic configurable intervallometer would be a DREAM!!!
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Offline Seklth

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Re: General EOS 40D development discussion
« Reply #17 on: 10 / September / 2008, 19:09:34 »
@DataGhost
you find method, how run firmware over .fir file?
on my 400d i can start firmware only from autoexec.bin.

P.S. my last datebase http://seklth.ru/chdk/400D_E4KR3111_FF810000_20080904.rar
you know tool for quickly getting signatures from database? =)
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Offline DataGhost

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Re: General EOS 40D development discussion
« Reply #18 on: 11 / September / 2008, 02:51:54 »
Well, actually I just jump to 0xFF810000 (in reality, I jump to my own modified code based on whatever is around there). That's about the same thing the 'bootloader' (0xFFFF0000....) does. Though that one jumps to another address, I believe that's just a mapped instance of the flashrom.
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Offline holeepassion

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Re: General EOS 40D development discussion
« Reply #19 on: 12 / September / 2008, 07:06:45 »
Please please . i want a movie mode on 450D please. should be pretty similar to 40D right ???

Could Nikon D90 firmware be used to help ???

Thanks
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