I'm interested in getting and using an EF25 closeup tube on my 100-400 IS. What I'm wondering is what kind of focusing range I'll get with this tube, how far out I will be able to focus, and how close.
Any advice on DOF and whether the EF12 or EF25 would be best for me are appreciated. What about using both - any disadvantages? I think the usable image circle just gets bigger, and naturally I lose infinity focus. Could I use a tube and still shoot things 50-100 feet away with more magnification than without the tube? thanks Jim Davis * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
