Panasonic Lumix DMC-FZ200 User Manual page 180

Lens at 600mm
Lens at 600mm plus 1.7x Teleconvertor
Illustration of the X 1.7 magnification of the LTE-55 lens.
In my own testing with the lens, the additional magnification necessitated
using a higher shutter speed to reduce blur caused by hand shake.
Given the high price of the lens and adaptor combination plus the shutter
speed limitation, I now use x 1.5 digital zoom with almost identical results
to the optical magnification for those situations where a slight increase in
zoom is required.
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