No it's just a bug in the firmware.
[EMAIL PROTECTED] wrote:
Summary : My Pentax ZX-5n has a Sigma 70-200mm F2.8 attached to it via a Sigma 2X Teleconverter. When the zoom is set to 400mm (w/2x teleconverter) and the apeture is opened all the way (F2.8), my Zx-5n reads the apeture at an F-stop of 2.8.
Can this be right? Shouldn't the F-Stop be 5.6? Do I have a special teleconverter? I'm really confused here.
Any help would be appreciated.
~Alejandro
