Most useful tube lengths? Some fixing is required

Hi all and good morning,
I've got a set of auto extension tubes which I rarely use, however I was trying to do this yesterday and dropped one of them completely mashing up the male lens mount. Thankfully it wasn't a lens!
I can salvage it by preplacing the male EF mount from one of the other tubes, but it will lwave me one tube down.
The lengths I have are 13mm, 21mm and 31mm (the damaged one). Which one should I temporarily lose for the moment?
Cheers all and I hope that makes sense,
Noel

Noel Johnson wrote in post #13624173
Hi all and good morning,
I've got a set of auto extension tubes which I rarely use, however I was trying to do this yesterday and dropped one of them completely mashing up the male lens mount. Thankfully it wasn't a lens!
I can salvage it by preplacing the male EF mount from one of the other tubes, but it will lwave me one tube down.
The lengths I have are 13mm, 21mm and 31mm (the damaged one). Which one should I temporarily lose for the moment?
Cheers all and I hope that makes sense,
Noel

Really depends on what lenses you were using them with. I would say lose the 13mm tube, but if you are using the tubes with a wide angle lens then you may need it. If you are using the tubes with a main lens of say 40mm or greater then I don't think you need the 13mm. If the main lens is less then 40mm then lose the largest tube.
Brian v.

Cheers Brian,
I'd be using them primarily with the Tamron 90mm macro - right, now where is my gas axe...
Cheers again,
N