Monday, May 31, 2010
Sunday, May 30, 2010
Saturday, May 29, 2010
Friday, May 28, 2010
Further tests with the 25mm extension tube. The first is taken at f18 and the tips of wing and abdomen are not quite in focus.
The second has the maximum aperture setting f40 and is now just about all in focus - the shutterspeed at ISO 640 is now 1/20 sec so only one out of six pictures didn't have some movement.
There were several pairs of red damselflies laying their eggs in the pond this morning. I tried a method that I used last year to get closer to the insects - a 25mm extension tube with the 400m end of the 100-400mm. The first picture is just about full frame. The main problem is depth of field. With the bright sunlight, I could use f40 to give maximum depth.
Wednesday, May 26, 2010
Tuesday, May 25, 2010
Monday, May 24, 2010
Saturday, May 22, 2010
Friday, May 21, 2010
I have put the moth trap out during a few nights over the last month and have caught virtually no moths probably because it has been very cold with frosts on several nights. Last night I tried again and found lots of moths in the morning. I photographed quite a few before they took off and identified most (see my separate Moth blog) but haven't yet found this one - any ideas
Thursday, May 20, 2010
Tuesday, May 18, 2010
The fish-eye gave some interesting images from inside this fine maple tree
I liked the echo of the leaf pattern in the shadow behind.
Sunday, May 16, 2010
Friday, May 14, 2010
On a second quick visit one evening when returning home down the A1, I found a very good area for photographing where the bird perched to sing very much in the open. The evening light was beautiful but did create a harsh shadow across the tail so another visit was required!
By the next visit a few days later, the number of singing birds had diminshed and they were singing less often but I did manage a sharp image in mottled sunlight.
The final (?) visit yesterday to the same area produced some wonderful views - still not perfect as there are branches across the tail in one and a rather bland background in the other. Perhaps another visit is required - so photography becomes an excuse to return several times and experience the wonderful song of this amazing bird.
Thursday, May 13, 2010
The flower is borne on an upright stem above the leaves to attract insects. When pollination has occurred the stem grows/bends downward so that the dead flowerhead with the developing seeds is now at ground level below the flowers. When the seeds are ripe and ready for dispersal, some growth or turgidity mechanism causes the seed head to be lifted above the flowers and leaves for dispersal of the parachute seeds by the wind.
I would love to know what physiological processes are involved if there are any botanists out there.