Matching cartridge to phono pre amp. pF!?

To the OP:  Are you saying that the specs for the Lehmann say it has 100pF of capacitance at its inputs?  If so, you need also to add in the capacitance of your phono cables.  Any phono cable is likely to have an intrinsic capacitance of at least 50pF, assuming a 3-foot length.  Upper end would be 150-200pF, so if you add 100pF to the cable ranging from 50-200pF, you are in the right ballpark for total capacitance.  How important is this?  It's nice to stay within the manufacturer's recommendations for the cartridge, but rules are plastic in this hobby.

I suspect that there are NO perfect audio systems in the world. At least, not high end. Why? Because matching every spec for all the equipment  is far too rigorous and maybe expensive. Then too, IF you had the perfect system, would it sound any better to a majority than those imperfect ones? I have little or no electronic experience other than user  operation. But I know that perfection is rarely if ever achieved in this fallen world. Just my $0.02 worth

Don't worry about it.  In almost all cases, the cables between the phono stage and the cartridge will have adequate loading.  And it's NOT important.

Sent this same question to Ortofon last year; here’s their reply:
"The parallel capacitance should be in the range of 150-300pF. The higher the capacitance value of the input of the phono stage, the duller the sound will be. The lower the capacitance the brighter the sound gets. A mismatch results in either a dark dull sound or an over bright distorted signal. The capacitance of the phono cable should be taken into account when matching the cartridge to the phono stage as the capacitance of the cable adds to the capacitance of the phono input."

Since I can adjust pF value on my McIntosh MA352, I just set the value to 100pF per recommendation of McIntosh. I’ve tried 50pF and 150pF and 200pF but 100 pF seems to be the sweet spot for the Ortofon 2M Black.