Hi,
As far as i can see it, there may be two reasons for extremely short shutter speeds with leaf shutters.
- The major case may be if you want use strobes outdoor and use them to overpower sunlight.
- The other case is stopping motion.
Obviously, it can be useful to use very short shutter speeds to allow shooting at full aperture in very bright ambient, but that very bright ambient essentially means harsh sunlight, probably not what you prefer shooting beautiful ladies anyway and if so you can always use an ND filter.
To be able to overpower sunlight you need short duration flash. I did some testing with my trusty Hasselblad 555/ELD and a modern Godox Wistro AD 200 flash and it lost significant power, around 30%, already at 1/500.
https://www.dpreview.com/forums/post/60622964
As far as I know, the lens shutter speed is just 1/1000s, 1/2000s is achieved by co-orchestrating the reset on the latest family of CMOS sensors with the leaf shutter. So, exposure starts with leaf shutter fully open and exposure is started by resetting the sensor and terminated by mechanically closing leaf shutter.
BTW, the Phase One XF has a display for tuning flash sync to measured flash duration. Not suggesting you to switch system to Phase, but it is an indication that getteing the best out of flash sync may take a bit of work.
Best regards
Erik
I’ve bought a mint HC150n lens and away to buy a 50mm II and 100 f2.2. They are both in my B&H shopping cart but I keep seeing mint condition lenses the same as above but without the orange dot ie withouth 1/2000.
I like to shoot landscape and pretty girls (not in a studio). The saving in getting second hand is quite considerably so my question is can I get by with 1/800 or1/1000
Neil