Image:Spotted chafer f22.jpg

Macro Sharpness Test: This test was taken to demonstrate the effects of aperture on DOF and sharpness. The test subject was a Spotted Flower Chafer, chosen due to the fine detail in it's hair and body as well as being relatively "deep" providing a good test for DOF and sharpness. The test was taken with a 20D on a tripod using a remote release (TC-80N), the beetle was still alive (as variations in leg position show) but turned on his back to limit movement. Each frame was shot at 1/320s ISO 400, exposure was adjusted for using a MT-24EX flash ring. Apart from increasing exposure on each frame by +0.67 in raw conversion and removing dust spots, no editing (including noise reduction/sharpening) was done.

This frame shows the entire beetle at f/22

Other Images in series:

Entire beetle, f/5.6	Entire beetle, f/11	Crop of beetle showing detail at 100%, f/5.6	Crop of beetle showing detail at 100%, f/11
Crop of beetle showing detail at 100%, f/22

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Taken by Fir0002 Camera Details: Camera: Canon 20D Lens: Sigma 150mm f/2.8 Macro If you are a (commercial) publisher and you want me to write you an email or paper mail giving you permission to use my works in your products or a license with the terms of your choice, please email me to negotiate terms. However please note that some of my images are of people and buildings (eg the War Memorial) which I can't give permission to use due to personality and copyrights.

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