I'm versed in rodenstock and understand the huge difference between sironar n and s, as I've shot with an N and know the sweet spot falloff.

I'm in the market for a 240 and have been racking my brain over the difference between the symmar s and the apo symmar. I take it the "S" is the older model and the apo was the more recent untill schneider replaced them with the "L" series.

sigh, it all must be so complicated.

So my question is optimal sharpness is essential, I need the sharpest 240 I can find and am going used. Would an APO symmar be comprable to a new rodenstock sironar S?

I have a feeling I'm overcomplicating a simple issue,
thanks for your input