Nice to see you too David, thank you for contributing to the discussion here, but I find that the "You're such an ass." expression is a bit personal. And as you can read I made a positive comment about Hasselblad. I said that it is good that they have no fan.
[blockquote]The Fan (Michael Reichmann)
The Aptus has a fan, which the P25 does not. Air is sucked into openings on the left side of the housing and blown out of the right side openings. The fan is very quiet, and can only be heard when the camera is up to ones eye in a quiet environment. But fans of course draw power, and this obviously plays a role in the Aptus' battery life.
This also brings to the fore the issue of power management as well as concerns when working in harsh environments. My primary concern is that when shooting in dusty and dirty conditions, the fan will suck airborne particle into and through the back. What impact this may have on component life is an open question, but if I was a photographer working from time to time in such conditions (which I am), this would be something to consider.
The reason that the P25 does not have a fan, and doesn't need one, is because of the power management approach taken by Phase One. They describe this as Sleep architecture, where components are only powered up as needed, and otherwise are put into a quiescent state. This has a dramatic effect on power consumption, as does their dimmer but more power-stingy LCD. As well, the P25's entire front panel where it connects to the camera body is designed as a heat sink, drawing heat from inside the back to its exterior.[/blockquote]
http://www.luminous-landscape.com/reviews/...s/aptus22.shtmlYou're such an ass.
David