I happily use a Panasonic GF1 for digiscoping and am contemplating buying a new lens as we are travelling to the Philippines and will be birding mainly in forests where digiscoping becomes much more difficult. There are a number of Panasonic lenses available: the 45-175, 45-200 or the 100-300 mm all of which should suit. Can anyone advise on what the best option for me would be; from digiscoping I sense that MFT 300mm (600 mm equivalent) might be more than necessary for forest situations. Any other lens recommendations? Many thanks