Don and Jim,thankyou for info.Jim,I think I may pass on the mirror lock up,although I have heard it can prevent vibration.But as Don has mentioned ,yes a tripod,must be used,as the 400 lens does not have is,and also I believe it will not auto focus with the converters,so manual focus (in my case),needs a tripod.I am going to start practising next week using the 300 lens .
|