I am in "slo-mode" today but this indeed is how swimming should be filmed

Here is Mark Foster, a sprinter from England who should have been on the 2004 British Olympic team. Here is a British wiki on him:

• Mark Foster (born May 12, 1970 in Billericay, Essex, England) is a former British swimmer, specialising in butterfly and freestyle at 50 metres.
• He is a specialist short course (25 metre pool) swimmer. In terms of medals and longevity (1986-2006), Foster is amongst the most successful British swimmers of all-time.
• ...
• In 2004, Foster was to face the disappointment of not being selected for the Olympic Games. At the British Olympic Trials, he won the 50 free in 22.49 seconds, well under the Olympic qualifying standard but seven hundredths of a second below the standard National Team Director Bill Sweetenham had set for inclusion in the British Olympic Team. Foster has openly criticised Sweetenham's management style and has trained outwith the British team's auspices.

I love this video since it is so detailed. It shows a close up on hand entry, rotation and his streamline. This is show swimming should be filmed