If I can't get sharp images at 250 at f8 with a 50mm lens I may as well quit. No tripod necessary.
Sorry my post was ambiguous to test the lens you will need panf+ and a tripod it is a clinical scalpel. You won't see the lens signature with a scanner and Tx.
Look at the MTFs.
The Tx is better than Trix but not as good as Tmax100 or Panf+.
If you shoot a panf+ cassette of a lens test chart you will need a microscope to look at the negatives...