It would be cool if he could see X-rays in the 10 nm range from what I have read UV and X-rays seem to overlap in that area at 10 nm. But the link to his page s

It would be cool if he could see X-rays in the 10 nm range from what I have read UV and X-rays seem to overlap in that area at 10 nm. But the link to his page shows he can see 340 to 350 nm at best.