I recently found this schematic from a project at university (drawn by our lecturer). It's a low pass filter that also adjusts the gain, and adds an offset of 1.5 V (the input signal can be positive or negative and this filter feeds an ADC).
However, I just realised that the 1.5 V offset at the positive pin of the opamp doesn't include the capacitor. Is there a reason the 1.5 V is not connected to both components?
Thanks for your help!