[1 of 1 customers found this review helpful]
I Have Found the +1,+2 and +4 Very usefull with my zoom lens 70-300 in the field , whenever using my 70-300 as i may see an interesting closeup shot, that my 60mm micro may be inconvienient for,such as nearby flowers or some texture i may want to expand on
Inexpensive way to magnify your subject without having to purchase a prime lens for a astronomical price to do similar results