ANTI-ALIASING FILTER SIMULATOR BRACKETING
Bracketing, where three or more images are taken with just a single variable changed between each frame, used to be a feature that simply changed an exposure-oriented parameter, such as shutter speed.
this principle was subsequently applied to flash exposure, white balance and colour and filter options, and with its most recent models Pentax has provided the same control over its anti-aliasing filter simulator.
Here, one image is captured with the simulator activated, before another is captured on its standard setting, and then one final image with a stronger corrective effect over moiré (at the expense of resolution). On the kP, a further option that removes the middle image from that sequence is also available.
given that moiré, and other aliasing artefacts, can be very problematic to deal with in post-production, this is a useful option to have activated if you tend to shoot subjects that easily give rise to these effects, such as architecture, textiles or anything else that may involve fine repeating patterns, such as strands of hair.
these effects cannot always be anticipated as they are partly down to the very specific positioning of the camera to the subject. in other words, they can appear or disappear with just a slight shift or change in focus.
this option is found within the first set of menu tabs.