One (the more expensive one) seems to be EU supplied. Description is in french for start. The questions seem to suggest that one was actually cheaper at one point. Just usual amazon crazy pricing.
Pricing is controlled by the supplier, not by Amazon, and there are innumerable reasons why prices can vary wildly, for example:
1. Some suppliers pay their import taxes and VAT, some evade them
2. Some suppliers are happy to sell almost at cost, to gain market share from their competitors.
3. Some suppliers are overstocked and need to get rid, to free up cash.
4. Both of these cameras are fulfilled by Amazon, which means that they are held in stock in an Amazon warehouse (expensive) so it can pay to turn the stock over quickly to reduce these costs.
Amazon is a very effective sales platform, but also an expensive one, taking around 30% of the sales price (up from about 18% five years ago, so not usually the place for bargains.