metering methods

Nicandra physaloides

Learned from Joe McNally: if I put the D5100 on center weighted metering the background gets brighter.

The difference between spot metering and matrix metering seems to be quite small, though.

Eschscholzia californica

evening sun

Veratrum nigrum

20 h, available light, f1.8, 1/400, -1 AF:
1

When using TTL, the Nikon D5100 can’t synchronize faster than at 1/200, no high speed sync available. Solutions? Different camera or neutral density filter. The Triggertrap flash adapter doesn’t help here.

20.54 h, f/1.8, 1/200, -4 AF, SB800 through umbrella camera left:
2

21.16 h, f/4.5, 1/60, -2 AF, SB800:
3

21.20 h without flash:
4