1/200 Sec - f/5.6 - ISO 400 - 100mm
Canon 7D - Canon 100mm f/2.8 Macro - Canon 580 EX II
January 31, 2011
January 29, 2011
American Kestrel
The other morning, my wife and I took a drive out to Farmington Bay. We were a little slow getting there and although we counted more than 60 Bald Eagles, they had finished fishing for the morning and had moved way out on to the ice and trees. Even though there weren't a lot of photo ops, we did enjoy watching the eagles, a few harriers, herons, kestrels, and about a bazillion sea gulls (yes, I actually counted them). The highlight of the morning was the front-row seat we had for and American Kestrel enjoying his mouse for breakfast. It was pretty amazing to watch this guy devour the mouse. He kept a pretty close eye on us, but made pretty quick work of his meal.
Heads up - some of these images are a bit on the graphic side.
All but last two images were taken with the Canon 7D and the Canon 400mm f/2.8L IS lens coupled with the Canon 1.4x III Extender.
The last two images were taken with the Canon 40D and the Canon 70-200mm f/2.8L IS lens.
January 24, 2011
January 23, 2011
A Little Of Everything
Ducks, Deer, Coyote, Harriers, Porcupines, Eagles, Owls, and Herons.
Not a bad way to spend a few hours on a Saturday.
With the exception of the Owl image, all images were created with the Canon 7D and Canon 400mm f/2.8L IS lens.
The owl image was taken with the Canon 40D and Canon 70-200mm f/2.8L IS lens.
Bald Eagle
While out shooting with my friend, Rob, we happened to come across a Bald Eagle that was kind enough to let us get off a few shots before he headed out over the lake.
Images were created with the Canon 7D and Canon 400mm f/2.8L IS
January 22, 2011
Greater White Fronted Goose
While on our way back across the causeway from Antelope Island, my friend Rob and I came across a bunch of photographers that had stopped along the side of the road. Of course, we had to see what all the commotion was about. As we got up to the crowd, we saw that they were taking pictures of a goose. This goose looked just like the geese that the farmer across the street had when I was a kid. As we were standing there scratching our heads, wondering why in the world this was so exciting, a lady came over and asked if we would like to know what was so special about this particular goose. Apparently this was a Greater White Fronted Goose and they are rarely found in Utah, and never up this close. So here you have it, a Greater White Fronted Goose. Oh, she also said that this was a juvenile.
Images were created with the Canon 7D and the Canon 400mm f/2.8L IS lens.
January 18, 2011
Depth Of Field Exercise
Following a recent discussion regarding DOF (depth of field), extension tubes, and a 50mm lens,
I decided to shoot an example to illustrate the differences that can be obtained by using the extension tubes
I decided to shoot an example to illustrate the differences that can be obtained by using the extension tubes
I shot four series of shots, all of them using the Canon 7D and the Canon 50mm f/1.8 lens. Because the 7D uses an APS-C sensor, the 50mm is equivalent to 80mm on a full-frame sensor. I used my tripod, cable release, and the mirror lock-up function in the camera. Each series contains 8 shots, taken at 1 stop increments from f/2.0 - f/22. The images have been converted to B&W in Lightroom and have been adjusted for contrast and exposure. They have not been cropped. In all of the images, the number 10 is the center of focus. In each of the images, pay attention to how much of the ruler is in focus on either side of the 10" mark.
This first series was shot with just the 50mm lens. The focal distance was about 23".
Notice that at f/22, the DOF is several inches, at f/2.0, the DOF has shrunk to less than one inch.
Notice that at f/22, the DOF is several inches, at f/2.0, the DOF has shrunk to less than one inch.
f/22 - 2.0 Sec - ISO 400
f/16 - 1.0 Sec - ISO 400
f/11 - 0.5 Sec - ISO 400
f/8 - 1/4 Sec - ISO 400
f/5.6 - 1/8 Sec - ISO 400
f/4.0 - 1/15 Sec - ISO 400
f/2.8 - 1/30 Sec - ISO 400
f/2.0 - 1/60 Sec - ISO 400
In the second series, I added a 12mm Extension Tube. With the addition of the 12mm extension tube, the focal distance is now about 10".
Notice that in addition to the subject filling more of the frame, the size of the DOF has gotten smaller at every stop.
f/22 - 2 Sec - ISO 400
f/16 - 1 Sec - ISO 400
f/11 - 0.5 Sec - ISO 400
f/8 - 1/4 Sec - ISO 400
f/5.6 - 1/8 Sec - ISO 400
f/4.0 - 1/15 Sec - ISO 400
f/2.8 - 1/30 Sec - ISO 400
f/2.0 - 1/60 Sec - ISO 400
In the third series, I switched the Extension Tube out for a 20mm. The focal distance in this series is about 9".
While it isn't a big jump from the 12mm tube, you can still see a difference in the amount of the frame that has been filled as well as the DOF.
f/22 - 2.5 Sec - ISO 400
f/16 - 1.3 Sec - ISO 400
f/11 - 0.6 Sec - ISO 400
f/8.0 - 0.3 Sec - ISO 400
f/5.6 - 1/8 Sec - ISO 400
f/4.0 - 1/15 Sec - ISO 400
f/2.8 - 1/30 Sec - ISO 400
f/2.0 - 1/50 Sec - ISO 400
In the final series, I used the 36mm Extension Tube. The focal distance dropped to 7".
You can see that there is a significant difference in the amount of the frame that is filled by the ruler.
In addition you can see that the DOF is significantly smaller in all of the images, especially when compared to the first series.
At f/2.0, the DOF is no more than about 1/16 of an inch.
f/22 - 6 Sec - ISO 400
f/16 - 3.2 Sec - ISO 400
f/11 - 1.6 Sec - ISO 400
f/8.0 - 0.8 Sec - ISO 400
f/5.6 - 0.4 Sec - ISO 400
f/4.0 - 1/5 Sec - ISO 400
f/2.8 - 1/10 Sec - ISO 400
f/2.0 - 1/20 Sec - ISO 400
In the second series, I added a 12mm Extension Tube. With the addition of the 12mm extension tube, the focal distance is now about 10".
Notice that in addition to the subject filling more of the frame, the size of the DOF has gotten smaller at every stop.
In the third series, I switched the Extension Tube out for a 20mm. The focal distance in this series is about 9".
While it isn't a big jump from the 12mm tube, you can still see a difference in the amount of the frame that has been filled as well as the DOF.
In the final series, I used the 36mm Extension Tube. The focal distance dropped to 7".
You can see that there is a significant difference in the amount of the frame that is filled by the ruler.
In addition you can see that the DOF is significantly smaller in all of the images, especially when compared to the first series.
At f/2.0, the DOF is no more than about 1/16 of an inch.
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