Quote Originally Posted by ntenny View Post
It seems like you would want shorter lenses for macro purposes on 4x5. With a 180, you'd need 360 mm of bellows to get to 1:1, and I don't think any Graphic has that, though the Shen Hao might. You might want to experiment with the lenses you've got first, and see how you feel about their macro performance in practice; you may not need anything new.

-NT
I tested 150 and its macro is not good, and this lens showed me which lenses i want to go with, either shorter or longer than 150, there are some applications i can use 150 for, but mostly what i do will go either with shorter wider lenses or longer.