...... both the gear teeth (at the back) and the threaded holes (at the front) are in acceptable focus, even though they are at 90° to each other.I think you meant to present a concept differently than you have and I'm clueless about your actual intent.
All the threaded holes visible in the Offenhauser pump pictured are actually very parallel (0°) to the gear teeth.
Can you please re-phrase for clarification?
The removale front of the pump is one leg of an "L." The body of the pump is the other leg of an "L." Where the two legs of the "L" meet is a 90° angle, forming two different planes. Both the side of the body (one plane of the "L"), and the removable front piece (the other plane of the "L") are on two different planes. Both planes are in Acceptable Focus, but how can this be Some posters have said that only one plane can be in focus, therefore I must have made a very large mistake because my photo clearly shows two planes in Acceptable Focus