FZ200 with teleconverters - tests and comparison

One more question: do you use teleconverter only on tripod? because i see the last pictures shot at 1/5s...

I try again my nikon e15ed today but i can't have a sharp image, it's soft , soft , soft... it was very nice on fz150 but don't work on fz200...

Can you get a sharp picture with teleconverter handhelp and what is the minimum shutter speed a full extend zoom?