It's a little tedious photographing with it. You have to focus and meter without the filter on. Then switch to manual focus or lock your focus, attach the filter and then do the long exposure required usually with bulb setting. There are charts out there or there's the math work to calculate your exposures properly. Most will set the ISO to 100 and stop down to f/14 or so and use a chart to give exposure times. An example is with your ISO and f-stop selected (and your metering done) would be if you had an exposure of 1/125 sec ( using ISO 100 and f/14 ) calculate 1/125 X 1000 (10 stops) = 1000 over 125 and then divide = 8 seconds . . your exposure. Simple eh . . . Hope this made sense.
print this off or write it down and stuff it with your filter.
1/8000 = 1/8
1/4000 = 1/4
1/1000 = 1/2
1/500 = 2
1/250 = 4 .
1/125 = 8
1/60 = 16
1/30 = 30
1/15 = 60
1/8 = 120
1/4 = 240
1/2 = 480
1 = 960
2= 1920
4 = 384
First column is your meter reading using NO FILTER. The second column is the adjusted exposure you need to use.
print this off or write it down and stuff it with your filter.
1/8000 = 1/8
1/4000 = 1/4
1/1000 = 1/2
1/500 = 2
1/250 = 4 .
1/125 = 8
1/60 = 16
1/30 = 30
1/15 = 60
1/8 = 120
1/4 = 240
1/2 = 480
1 = 960
2= 1920
4 = 384
First column is your meter reading using NO FILTER. The second column is the adjusted exposure you need to use.
