Originally posted by Wheatfield This discussion actually made it's way onto another forum I attend. Here is what they are saying:
"I don't disagree (about how it would be nice for third party TC's to work), but for the Pentax Forums simpletons to blame
Pentax for the behavior of another manufacturers product on their
camera is silly."
while everyone is entitled to thier opinion, why do other camera manufacturers have compensation within thier systems?
Quote: and:
"It's not even the 3rd-party manufacturer's fault: The teleconverters
they're complaining about were designed before the shake reduction
system was even invented!"
Aside from shake reduction, the teleconverter also modifies the focal length as used for flash (although most people don't use one on a short lens, but could) and the actual apatures, along with the exif historical data of the shot. It also applies to lens program lines, and shutter speed selection in automatic modes, auto iso selection if activated. It is not simply about shake reduction but that is where the greatest functional difficulty lies.
Quote: So you are pillorying them for not supporting a product which they don't make, have never made, and which was made prior to them making a shake reduction body.
Did your mommy have any kids that developed opposable thumbs?
No, I am pillorying them for not appearing to make any attempt to recognize the problem exists, and impacts many users when simple solutions exist to make it work. I also believe they should have had the simple foresight to recognize there would be a problem with teleconverters. While they do not make them at the moment, they have in the past, and hopefully will again in the future. As a manufacturer, and this applies to any manufacturer of any product, not just cameras, they do actually have some responsibility to foresee how people will use their product, within reasonable limits.
Teleconverters for AF pentax lenses existed before their first DSLR, therefore they should have also foreseen the need to accomodate them in some form.
They do not make tripods, for example, yet they advise that shake reduction should be turned off when using one, but, no where in their manuals do they advise that there is a technical issue with using teleconverters and that the shake reduction is not optimal with one, this includes the K20D manual their newest camera.
Quote: You may mot like the fact that teleconverters degrade images, but no one can argue that they do, it's just a matter of are you willing to put up with the loss of image quality.
Teleconverters are a fact of life. it is unfortunate that they do not accompdate such a simple device. That is the real point here, the unwillingness to accomodate a simple, well known, popularly used photographic device.
Edit note;
This is not the only issue with the K10D and K20D. There is also an issue with manual metering accuracy, where pentax are still claiming that the camera can use 23 million lenses they have made in the past for the camera, yet the metering accuracy (actually consistency over apature range) with manual apature lenses is +/- 2 stops at best. This would have lead in the film era, to the camera being declared defective, but they do nothing to resolve the issue again known for over 18 months.
While this might seem like a gripe to some users, and perhaps users of some of the competition's cameras, pentax started out their pentaxian ad campaign by stating they listened to thier users. How wrong that has turned out to be.,