Originally posted by LaurenOE DA645 25mm - $5K
DA645 55mm - $1200.
FA645 80-160 on eBay - $1000.
FA645 45-160 on ebay - $1000.
FA645 33-55 on ebay - $3000.
(i don't shoot 645 but ...)
For me, AF on the 25 is just ... well, let's say it : useless. if you want to use it for landscape, you'll always be shooting at f8 at least.
I know, some will say it has nothing to do with 135, but when i shoot @18mm, i always stop down the lens as much as i can, and the DOF is so huge.
I guess, you can have 1,5m to infinity in focus with a 35mm @f11 or f16, on the 645D.
Get the A 35mm instead, and you get 4.5k back on your budget
The 80-160 and 45-160 sound a bit redoundant for me, maybe you can do something about it ?
EDIT : i didn't find in the database any 45-160, but a 45-85, is it what you mean ?