by PedroMen » Tue Jan 08, 2013 4:54 pm
Hello again! Thank you everyone for the answers!
I know there are other cameras and methods for doing high speed sync. I've been doing it with a Canon 5D, 580EX II and Radio Poppers. The disappointment is that the flash power really drops with exposure time (example: flash power at 1/200 > 1/2000 > 1/8000)
I think it's because in this mode the flashes don't really flash just one burst of light, they emulate continuous light doing multiple short light pulses.
I could use more flashes to overcome that power loss, say 4 flashes, but the price would go up and in the end the flash power would still be nothing comparable to, lets say, an Einstein 640Ws.
With my Fuji X100 I was in heaven in this matter! I could sync at 1/4000 f/2 with no power loss!! Why? Leaf shutter lens!! The problem: only 35mm eq. lens and APS-C size sensor (Sony RX1 is already out and has Full Frame sensor size! But the same 35mm eq lens. Oh, and the unreal high price!).
So, Phase One will get me to 1/1600, greater dynamic range, bigger files and more sharpness! Great, but I need:
- Phase One 645DF (or 645DF+)
- Leaf Shutter lens
- (Phase One) digital back are capable of registering it, namely the IQs, P40+ or P65+ (with "Extended" LS Support).
- An optional Vgrip for profoto trigger (by the way, is there a cheaper grip without the profoto trigger, just to hold better the camera and shoot vertically?)
So, for now I can buy a second hand 645DF and a 110mm f/2.8 LS and for sure I'm not buying one of those backs (mentioned above) as they are too expensive for me now.
But, I can afford a second hand Phase One P20 (it has a square format).
1) I guess this P20 will not give 1/1600s but how fast can it register, 1/800?
2) And do I need an adapter to mount it on the 645DF?
3) Will it register the full image seen by the viewfinder? I mean, will a 110mm still be a 110mm?
4) Since it's a square format, does it need some kind of a mask for 6 x4.5 format?
Thanks again for the answers and Happy new Year!
Pedro