A590IS Help -- RAW Picture Size < JPEG Size/ Bad Pixels

Gigi Treosei

« on: 22 / November / 2010, 08:25:17 »

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CHDKers::

Just discovered CHDK and am starting to use it on my A590IS. Installs fine but noticed a few things:

- JPEG size is L (3264 x 2448) whereas RAW size ends up being M3 (1600x1200)

Is there a setting to set L sized pictures for RAW?
Did I miss something in the set up?

- With CHDK installed installed, I noticed "bad" pixels in both RAW and JPEG images. When I shoot without CHDK, JPEG
images appear correct.

Has anyone else experienced this?
Is there a way to correct this?

Thanks in advance and apologies if this has been covered before,

.vp

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whim

2013
A495/590/620/630 ixus70/115/220/230/300/870 S95

Re: A590IS Help -- RAW Picture Size < JPEG Size/ Bad Pixels

« Reply #1 on: 22 / November / 2010, 09:54:36 »

Quote

JPEG size is L (3264 x 2448) whereas RAW size ends up being M3 (1600x1200)

There's nothing wrong with A590 RAWs AFAIK, but many viewers (Irfanview, Faststone ?) will by
default only show a (reduced size) preview, check their options (for Irfan, Options -> Properties -> PlugIns)

Also note there's a dedicated "RAW shooting and processing" board here: http://chdk.setepontos.com/index.php?board=15.0

HTH,

wim

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Lebeau

Re: A590IS Help -- RAW Picture Size < JPEG Size/ Bad Pixels

« Reply #2 on: 22 / November / 2010, 15:44:45 »

I use a A590 IS with CHDK and the RAW is full size. When you are selecting a different size, the apparel resize the raw when exporting the jpg but the raw is still a raw.

Concerning bad pixels, I use DNG with bad pixel reconstitution. Then I use Adobe camera profiler before importing in Photoshop or Lightroom.

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