I have made a 'Mk I' tripod for the front of the macro lens. It's not easy to use, and as with all tripods, it puts a stop to spontaneity. But I managed to take this . .
And this. . .
Are these improvements? Well, the depth of field is deeper, at an aperture of f/10, and I have reduced the negative exposure compensation by 2/3 of a stop. As a result the images show very little noise, even though the ISO is still set at 1600. So I think this is better, but not yet good. I am still scrabbling for images, rather than being deliberate about them.
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Sunday, 27 February 2011
Wednesday, 23 February 2011
Getting to Grips with the Moss Garden
This is the starting point: a straightforward macro image, with a magnification of 2X. The fruiting heads are those of bryum capillare.
Now some LED torchlight has been introduced, which allows a magnification of 3X. I don't think I need more magnification than this: - I like to give my subject room within the picture.
Now the camera has been weighed down with a heavy chain. Magnification is 3X.
There is still some way to go. To get an acceptable shutter speed I am using an ISO of 1600 and an aperture of f/7.1 Good images would really need another two stops, to allow an ISO of 800 and a aperture of f/10. The options are to do a better job of keeping the camera steady without a tripod, or to introduce more light. (I am reluctant to use flash in the field).
I need to work on that miniature tripod . . . .
Now some LED torchlight has been introduced, which allows a magnification of 3X. I don't think I need more magnification than this: - I like to give my subject room within the picture.
Now the camera has been weighed down with a heavy chain. Magnification is 3X.
There is still some way to go. To get an acceptable shutter speed I am using an ISO of 1600 and an aperture of f/7.1 Good images would really need another two stops, to allow an ISO of 800 and a aperture of f/10. The options are to do a better job of keeping the camera steady without a tripod, or to introduce more light. (I am reluctant to use flash in the field).
I need to work on that miniature tripod . . . .
Tuesday, 22 February 2011
The Challenge of the Moss Garden
I value the hidden beauty of the commonplace.
Simple flowers.
Simple Trees.
Simple Plants.
My current challenge is a moss garden. The moss garden grows on a pile of broken stones, all that remains of a cow-shed that burnt down in the 1970s. I want to photograph individual leaves and fruiting heads. So I need 1X - 3X macro, lots of light, and accurate focussing. But the stones slope away, and I cannot get a tripod close enough. So I am trying to make a miniature tripod to fit on the front of the lens . . . .
Simple flowers.
Simple Trees.
Simple Plants.
My current challenge is a moss garden. The moss garden grows on a pile of broken stones, all that remains of a cow-shed that burnt down in the 1970s. I want to photograph individual leaves and fruiting heads. So I need 1X - 3X macro, lots of light, and accurate focussing. But the stones slope away, and I cannot get a tripod close enough. So I am trying to make a miniature tripod to fit on the front of the lens . . . .
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