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Can't turn Noise Reduction OFF

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Offline spiderman

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Can't turn Noise Reduction OFF
« on: 09 / April / 2008, 17:47:09 »
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I'm using Allbest Build 50 on an SD850.

With a 15" exposure, it takes ~45sec for a RAW capture weather NR is set to OFF or ON.

I had the same problem with an SDM build the SD850.
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Offline Barney Fife

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Re: Can't turn Noise Reduction OFF
« Reply #1 on: 09 / April / 2008, 19:23:45 »
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« Last Edit: 22 / April / 2008, 17:08:41 by Barney Fife »
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Offline whoever

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Re: Can't turn Noise Reduction OFF
« Reply #2 on: 10 / April / 2008, 04:07:49 »
Quote from: spiderman on 09 / April / 2008, 17:47:09
With a 15" exposure, it takes ~45sec for a RAW capture weather NR is set to OFF or ON.

I had the same problem with an SDM build the SD850.

You're right, I missed it:  nrflag in capt_seq.c is incorrect. As far as I can see, the correct value should be
Code: [Select]
    long *nrflag = (long*)0xED44;
I have no possibility to test at the moment, but I will get back some time later.
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Offline ewavr

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Re: Can't turn Noise Reduction OFF
« Reply #3 on: 10 / April / 2008, 04:32:10 »
-deleted-
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Offline whoever

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Re: Can't turn Noise Reduction OFF
« Reply #4 on: 10 / April / 2008, 04:36:21 »
@ewavr:
in capt_seq
Code: [Select]
FFB10BCC FC 32 9F E5                 LDR     R3, =0xED44
FFB10BD0 00 30 93 E5                 LDR     R3, [R3]
FFB10BD4 01 00 53 E3                 CMP     R3, #1
FFB10BD8 1A 00 00 1A                 BNE     loc_FFB10C48

So, please correct, if possible.
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Offline ewavr

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Re: Can't turn Noise Reduction OFF
« Reply #5 on: 10 / April / 2008, 04:39:47 »
Yes, all is correct, in my deleted message I speak about IXUS850 (not SD850).  ;)

upd: Done
« Last Edit: 10 / April / 2008, 05:29:34 by ewavr »
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Offline spiderman

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Re: Can't turn Noise Reduction OFF
« Reply #6 on: 10 / April / 2008, 14:33:06 »
Thank you for the responses.

When will this change go into a build for the SD850?

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Offline PhyrePhoX

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Re: Can't turn Noise Reduction OFF
« Reply #7 on: 10 / April / 2008, 14:49:33 »
http://grandag.nm.ru/hdk/autobuild/allbest-ixus950_sd850-100c-50.zip this should be the latest build that already has the fixes included.
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Offline spiderman

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Re: Can't turn Noise Reduction OFF
« Reply #8 on: 10 / April / 2008, 15:53:50 »
This doesn't seem to fix the problem.

Using this release on my SD850:
http://grandag.nm.ru/hdk/autobuild/allbest-ixus950_sd850-100c-50.zip

When I capture a 15" exposure (operating the camera in single capture manual mode with RAW capture enabled):
with NR "ON": it takes 37" from shutter until the camera returns to live preview
with NR "OFF": it takes 37" from shutter until the camera returns to live preview

With NR "OFF" I would expect the time to be significantly shorter.
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Offline GrAnd

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Re: Can't turn Noise Reduction OFF
« Reply #9 on: 10 / April / 2008, 16:43:13 »
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