Klaus ...

cite from your review:

"Some of you may not be familiar with the T-value here - it refers to the effective

light transmission characteristic rather than the calculated f-number (which is slower

than the T-value in the real world)."

... the T-value is the slower one ... the F-value is the lower (numerically) one.

Likely a typo ... Rainer

PS: Eventually this lens is an exception, that artificially (or magically) produces additional

light out of nowhere ... in this case, the lower T-stop and slower f-stop would be correct.

cite from your review:

"Some of you may not be familiar with the T-value here - it refers to the effective

light transmission characteristic rather than the calculated f-number (which is slower

than the T-value in the real world)."

... the T-value is the slower one ... the F-value is the lower (numerically) one.

Likely a typo ... Rainer

PS: Eventually this lens is an exception, that artificially (or magically) produces additional

light out of nowhere ... in this case, the lower T-stop and slower f-stop would be correct.