How they come? Do I need to do extra subdivision in Zbrush? or Keyshot can do its own ?
Or they came just right as they should be from Zbrush exporter pluging? Do Keyshot camera match perfectly zbrush one so I could do depth pass in Zbrush?
KeyShot will do the conversion automatically. The cameras do not match.
Here is a little test I did using Zbrush version of Keyshot 5.2.
http://www.zbrushcentral.com/showthread.php?192420-keyshot-questions&p=1132235&viewfull=1#post1132235 (http://www.zbrushcentral.com/showthread.php?192420-keyshot-questions&p=1132235&viewfull=1#post1132235)