| Joined: | Mon Apr 2nd, 2012 |
| Location: | South Lakeland, UK |
| Posts: | 4066 |
| Status: |
Offline
|
The Voltage is not important, what matters is the available current. Your oddball battery can't be providing enough current to charge the capacitor on the D1x, but perhaps the D1 has a slightly lower demand. It's very difficult to measure the current flow because it can only be measured with the battery in place in the camera.
I made myself two Li-Ion batteries using empty shells for my D1/D1x cameras, the first one I made the internal wiring too thin a gauge, about .5mm2, despite fully charged brand new cells, my creation would not fire the shutter. I replaced the wires with heavier 1.5mm2 and it worked perfectly; the wires are only about 50mm long but it made the difference.
Perhaps that gives you some idea that the current demand is momentarily, very high for a battery driven device when it fires the shutter. There is a large capacitor in the firing circuit and I believe that is responsible tor the firing and for the relatively heavy battery demand of the early cameras.
On later cameras Nikon developed lower surge circuits with, no doubt more suitable motors and more efficient, lighter mechanisms with thinner titanium blades.
Hope that helps explain the 'phenomenon'
____________________
Robert.