Question about Pentax *ist D Digital Camera

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Problem with JPEG compression?

I have the camera set for 3 stars and "L", which is the highest resolution jpeg with 1:3 compression. I have a 256mb sandisk CF card---the camera's display shows 57 pics can be taken at this resolution and compression. When I start taking pics, the card remains at 57 or goes down as the pics are being taken, then goes back up. I took 156 pics on the card at this setting. My files are between 1.1 and 2.0 mb, which sounds more like 1:12 compression. Anyone know what is going on?

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Think what is happening is that Pentax is not using the maximum JPEG quality value for their high quality setting. I re-saved an image in Photoshop last night, and the JPEG quality value was set to 9. I increased it to 12, and ended up with a 3.5 MB file.

Posted on Sep 08, 2005

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