new lens or tubes

hi don't know if better to buy ext tubes to use with 50 mm or buy 100mm 2.8?Whats your thoughts?

I would like to add a question to this topic if the OP doesn't mind, would an extension tube added to an existing macro setup be beneficial? I have the Tamron 90mm macro

jc450d - both. you can use the tubes with the 50 to get to 1:1
and with the 100 macro to get to 2:1
but the price difference between the tubes and the 100 are different for sure. the 100 used/refurbished in is the neighborhood of the $450-$500 and the kenko tubes new are around the $160-170. or is there something to this question that I am missing?
****
mknabster - see above. tubes with macro 90mm would make the max magnification approx 2:1

ceriltheblade wrote in post #10605156
jc450d - both. you can use the tubes with the 50 to get to 1:1
and with the 100 macro to get to 2:1
but the price difference between the tubes and the 100 are different for sure. the 100 used/refurbished in is the neighborhood of the $450-$500 and the kenko tubes new are around the $160-170. or is there something to this question that I am missing?
****
mknabster - see above. tubes with macro 90mm would make the max magnification approx 2:1

In your opinion, is it worth getting them? I'm trying to get closer to small bugs and thus get more detail from them as well.

mknabster wrote in post #10605751
In your opinion, is it worth getting them? I'm trying to get closer to small bugs and thus get more detail from them as well.

Yes it is worth getting a set to use with the Tamron - a full set will give you over 2:1 magnification with that lens. You start seeing good definition on fly eyes around 1.5:1

Brian v.