Jakov, you are made of stern stuff, but there is a limit to what pressure even you can withstand ...
For visible-light work, one gets amazing sharpness for landscapes even at near wide open aperture. Many lesser lenses won't come close at their best apertures. Period.
For 'pure' IR with no visible-light components, sharpness at f/1.4 is again amazing.
For 'false-colour emulated Ektachtrome' stuff, a current favourite inclination of mine, there is significant visible light present and due to the focus offset, stopping down is recommended. Results are marvellous once the aperture is adjusted to cater for the required additional depth of focus.