Originally posted by falconeye Let me offer a different opinion.
I have awaited this development with much anticipation. I welcome the arrival of the first lens of a new generation, namely the above mentioned Panasonic zoom.
To me, camera + lens is a system which must be optimized at the system level.
If processor power has improved to the level that distortion and vignetting can be corrected in-camera in real time (or alternatively, in RAW converters upon import) then it is wise to make use of this possibility and drop optical correction of these parameters in favour of better correction of other aberrations, i.e., for better sharpness, bokeh, contrast etc. Or simply to make a lens wider.
It isn't a vendor lock-in because the correction is licensed to RAW converter manufacturers. In the case of Panasonic (upon pressure of Leica), the RAW format is licensed to converter manufacturers on the condition to include the correction. BTW, a possible vendor lock in came with the RAW format, not the correction. Adobe LR, ACR and (free) DNG converter includes the Panasonic correction module and you can't disable it.
Adobe is currently working at an extension of the DNG format to include the necessary correction meta data.
This ignores the obvious fact that there are pentalties involved in boosting shady edges and correcting distortion. As anyone would know from messing about in photoshop or a RAW converter, you cannot make a silk purse from a sows ear.
If you remove heavy distortion, you have to interpolate data = reduced resolution, in some cases in the corners by quite a large amount.
If you correct vignetting, you are brightening shadows = increased noise and again in the corners by over 2 ev, which is quite a lot of noise.
If I subsequently apply any PP to these images, I will simply magnify the problem. So, I have not removed any problem at all, I have just moved it from one place to another, and saved a few quid in the design of the lens, and made it impossible to manipulate the resulting image without degrading it to an unacceptable degree.
You cannot correct for a shit-poor lens performance using software, you can only make it less visible, but mucking around with raw data to mask lens inadequacies means you are simply starting your post processing with a
compromised image.
IMO, the lens should be as good as possible to start with and the correction should not need to be extreme. Since the K7 applies correction to DA lenses, perhaps we should now ignore their inadequacies? Not in my book.
I want to know how the lens performs independent of the system so I can pick the best one for my needs, and then I want my RAW to be RAW.
Panasonic are on the thin end of a nasty thick wedge, denying photographers the freedom to fully exploit RAW. I dont like RAW NR and I like RAW lens correction even less. If you want to do it in JPEG, then fine. Thats different.
I wouldn't touch a Panasonic micro camera with a long pole for precisely that reason. Sorry.