Pentax has today posted firmware version 1.01 for its digital SLR the *ist DS which addresses the problem of green noise which occurs when shooting night photography and when noise reduction is turned on. Pentax says the new firmware will 'minimize the phenomenon'.

Click here to download *ist DS firmware 1.01

Release notes:

Pentax *ist DS firmware update version 1.01

What has been changed in version 1.01 of the firmware?

At the long time exposure situation such as astronomical photography, green noise might be generated partially on the image when the noise reduction is turned on.

This phenomenon only occur rarely under special shooting condition such as starry sky, and will never occur at the general situation that we are assuming.

The version 1.01 will minimize this phenomenon as much as possible for the customer who use *istDS for this purpose