Edwin,
Living in Mexico and buying used photography equipment by mail -much the same the situation you're in Philippines- has thaught me caution. Most people are decent and I have got terrific deals, but I have also been burned. If in doubt, bite the bullet And buy from trustworthy dealers like B&H, Adorama or KEH. Sure, you will end up paying more, in some instances much more, but you will have a real guarantee behind your purchase and you can be sure than the item is in better condition than described.
About the focal length for your M6, I fit mine most frequently with a Summicron 35, the only "M" lens I own, but being hard pressed for a *single* lens, I would choose a 50. Right now I'm shooting with a CV Nokton 50, waiting for a fairly priced Summilux to replace it. I also have a IIIf and a Summitar 50/1.5 that is very fine for some nostalgic style shots and an Elmar 50/3.5 that is surprisingly good two stops down (f/5.6) on black & white film and printed at grade IV ;-^] (...The look is terrific tho...) In any case, what I want to say is that if you can only have one lens, make it a 50. It will get you 90% of the images.
--Jorge.
Living in Mexico and buying used photography equipment by mail -much the same the situation you're in Philippines- has thaught me caution. Most people are decent and I have got terrific deals, but I have also been burned. If in doubt, bite the bullet And buy from trustworthy dealers like B&H, Adorama or KEH. Sure, you will end up paying more, in some instances much more, but you will have a real guarantee behind your purchase and you can be sure than the item is in better condition than described.
About the focal length for your M6, I fit mine most frequently with a Summicron 35, the only "M" lens I own, but being hard pressed for a *single* lens, I would choose a 50. Right now I'm shooting with a CV Nokton 50, waiting for a fairly priced Summilux to replace it. I also have a IIIf and a Summitar 50/1.5 that is very fine for some nostalgic style shots and an Elmar 50/3.5 that is surprisingly good two stops down (f/5.6) on black & white film and printed at grade IV ;-^] (...The look is terrific tho...) In any case, what I want to say is that if you can only have one lens, make it a 50. It will get you 90% of the images.
--Jorge.