Originally posted by mackloon Is the DA* 300mm compatible with any teleconverters? If so, which ones that support AF? and which ones actually perform well.
Partially. It works only half way with TCs which are equipped with power zoom (PZ) contacts; e.g. the Tamron 1.4x Pz-AF TC and similar 1.5x Kenko PZ. Please note that Promaster PZ TCs do not AF (I tried with my DA*60-250, not DA*300, however).
Having PZ TC installed you have to prefocus lens manually first (most of DA* are equipped with quick shift override feature) and then obtain AF. Sometimes you have to half press the shutter button a few times before getting AF.