Kostas Kavoussanakis wrote: > On Tue, 7 Nov 2006, Thibouille wrote: > >> Why not? >> D70/D80 use electronic shutter (sensor) to achieve those speeds AFAIR... > > Is that different to the technology employed by Pentax? > > Kostas >
Yes, it's a hybrid shutter, the actual physical shutter never exceeds its sync speed, shutter speeds beyond 1/90 are acheived by turning the sensor on and off. The D50 and D70 use this (the D80 does not). In fact the D50 and D70 will sync at all speeds, they are software limited to 1/500 with dedicated flashes to prevent unpredictable power losses due to the flash burn being longer than the shutter speed (A full power pop on the SB-800 is approximately 1/1000 of a second in duration). -Adam -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net