| Joined: | Mon Apr 2nd, 2012 |
| Location: | South Lakeland, UK |
| Posts: | 4066 |
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Robert these were normal shots with the D500 and small F No to get DOF. I do not think the D500 will do auto Focus shift shooting like the D850. Perhaps the Interval time shooting menu in the D500 could be used for this but I have not tried this. The D850 has Focus Shift Shooting menu as well as the Interval Time Menu, JK has said the Z7 has the same set-up and I know he has done this with his Z7. I have just looked at the D500 instruction book and there is no info of focus stacking.
Thanks Graham, my expectation was that they were stacked, due to the thread title, not a problem - lovely flowers!
I have been investigating the Hydraulic rams and they seem to move about 0.7mm per stroke, that is of course variable by regulating the stroke of the pump. I imagine it will be possible to get it down to 0.01 movement per stroke but that's going to be stuff like insect eyes using X5 magnification. It will be entirely possible to throw away alternate images or even more if the increment is too small. The movement continues very slightly for about 0.01mm for a second or so, a slight delay on the shutter actuation will avoid making the exposure until the movement stops.
I have an early Nippon Kogaku Nikkor 50mm f/1.4 'S' coated lens, ('S' for sep or seven) it's pre AI which I need to mod to AI so it will fit my D800, when used with a No. 1 or 2 Nikon close-up lens, I am told it closely emulates the legendary Nikkor 'O' (oscilloscope) lens, the 'O' indicates oct (eight), elements. The Oscilloscope lens has a curved, convex focus plane to enable hard copy images to be made of early oscilloscope convex glass screens during the early tests of the first nuclear bombs. At the time it was the only way to capture the radiation spikes of the nuclear event. The real Nikkor 'O' are very rare and ...expensive.
These lenses have a very shallow depth of field, especially wide open and close-up, the bokeh is generally considered very smooth and milky. This is ideal for focus stacking and avoid the circles and other eye-catching artefacts which some lenses exhibit. It remains to be seen how nice my lens is.
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Robert.