In a playful burst of energy, I just spun the wheel on the back of my camera to see quickly what I had taken so far, and I saw how the duck weed in this little pond, was slowly moving clockwise, as a result of a little trickle of water from the rocks. I wondered how slow I could get the shutter speed with every polarizer filter on, the ISO down to 50, the f stop at 22. .... about 30 seconds, that was it, on a bright day.
So in my next visit to MidWest Camera I learned about a variable neutral density filter--variable in that it began with 2 stops darker and by clicks went down to 8 stops darker. Genius was the name of the filter. Expensive. But I went back and here is a 3 minute exposure of the duck weed.
I thought I'd be clever and use the variable neutral density filter at High Banks in the Fall and see what occurred.
Blur occurred. or.... BBBBBBBBBLLLLLLLLLLLLLLLLUUUUUUUUUUUUUUUURRRRRRRRRRRRR
So I went to focus stacking. I created 32 images rapidly. And then put them together. Not as fascinating as the swirl in the pond, from a tiny trickle of water.....
Swirls like galaxies are found in all kinds of places on the crust of the Earth, in clouds, in sandstone--the record of the swirls from millions of years ago.
If you'd like to subscribe to my blog, look to the lower right hand corner where you'll see in orange RSS feed, click on that, and then click subscribe. I hope you will.
Next time, the question is, How do you put 32 images together as one? Or, What is focus stacking? Or, How to make a curving fern that is in focus at one end but not the other, in focus from end to end?
'nuff said.
John
So in my next visit to MidWest Camera I learned about a variable neutral density filter--variable in that it began with 2 stops darker and by clicks went down to 8 stops darker. Genius was the name of the filter. Expensive. But I went back and here is a 3 minute exposure of the duck weed.
I thought I'd be clever and use the variable neutral density filter at High Banks in the Fall and see what occurred.
Blur occurred. or.... BBBBBBBBBLLLLLLLLLLLLLLLLUUUUUUUUUUUUUUUURRRRRRRRRRRRR
So I went to focus stacking. I created 32 images rapidly. And then put them together. Not as fascinating as the swirl in the pond, from a tiny trickle of water.....
Swirls like galaxies are found in all kinds of places on the crust of the Earth, in clouds, in sandstone--the record of the swirls from millions of years ago.
If you'd like to subscribe to my blog, look to the lower right hand corner where you'll see in orange RSS feed, click on that, and then click subscribe. I hope you will.
Next time, the question is, How do you put 32 images together as one? Or, What is focus stacking? Or, How to make a curving fern that is in focus at one end but not the other, in focus from end to end?
'nuff said.
John
The Hermitage Warsaw, Ohio
High Banks Metro Park Columbus, Ohio
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