lens converter mm
hi ladies and gents, silly question to some of you but one i need an answer to none the less. i have a 35-420mm lens. i-e digital 50x zoom. if i added a 1.4 tele converter what would the mm end up at. for the life of me i cant remember how to work it out. my maths leaves alot to be desired. can anyone help. thanx graham.
|