Please capitalize where necessary: has manual shutter speed
A: Has manual shutter speed

Please capitalize where necessary: the company, founded in 2013, has doubled its customer base and its employee headcount every six months since its founding.
A: The company, founded in 2013, has doubled its customer base and its employee headcount every six months since its founding.

Please capitalize where necessary: here are links to the homepages of some of the companies which make virus scanners:
A: Here are links to the homepages of some of the companies which make virus scanners:

Please capitalize where necessary: havana: in habana, the capital of cuba, there are more than 2.5 millions inhabitants.
A:
Havana: In Habana, the capital of Cuba, there are more than 2.5 millions inhabitants.