Originally posted by ogl The difference also: D800E has better, righter and clearer colours, better contract and better halftones.
I am convinced that the absence of an AA filter cannot introduce the differences you describe. Where have you seen the respective images? Were they the result of a controlled experiment?
Originally posted by ogl Aggressive sharpening kills the picture. It's not cure for camera with thick AA filter.
- Neither K-5 nor D800 have "thick" AA filters. Both cameras still produce a bit of moiré in extreme cases.
- There is no need for agressive sharpening. Just a bit of capture sharpening is required to increase the micro contrast a little so that the slight softening of the AA filter is counteracted.
Originally posted by ogl Thick AA filter is answer of manufacturers to the wish of users to shoot in JPEG with acceptable quality and without thinking about post-processing.
This is not true. AA filters are required for RAW files just as well. You can think of an AA filter as a poor man's three beam colour splitter. Each photosite in a Bayer matrix sensor only captures one colour and the filter's effect can be regarded as splitting the photons that would have hit one sensel in a Foveon sensor to many Bayer matrix sensor sensels, so that all colours are captured, not just one.
Originally posted by Pål Jensen Surely there must be some loss of finer detal by using an AA filter?
A well dimensioned AA filter only minimally affects true spatial resolution but mainly avoids colour moiré.
A monochrome only sensor could get away without an AA filter due to the high fill factor of today's sensors, but omitting an AA filter for a Bayer matrix sensor is just inviting trouble for very little gain.
Originally posted by ogl By the way, D800E has better low-light ISO and a bit better colour deptht han D800 in test of sensors .
The scores are very, very close to each other and some differences may be just due to measurement tolerances. For instance, the D800 has higher DR than the D800E but I'm sure that the difference is not real. Even if the other differences are real and due to the AA filter, they are definitely inconsequential in terms for making a real world difference for image quality.
Originally posted by Winder LR4 has a morie tool that works fairly well on RAW files.
I haven't used it yet but judging from my other Lightroom experiences, it won't be perfect. The main thing, though, is that you always have to apply the moiré tool manually in a localised fashion depending on an individual image, whereas you can set the global sharpening to an appropriate capture sharpening level once and then forget it.