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Description
A sectioned ammonite fossil; my first attempt at a proper photo with the 100mm f/2.8L macro. A beautiful lens, very well built, and optically excellent. I definitely need more practice to get used to it.

In this shot depth of field was a tradeoff against critical sharpness; I was shooting on a tripod with flash, so I wasn't limited in my choice of aperture. However, the majority of the subject matter was very close to the plane of focus, and I began to see losses in sharpness due to diffraction as soon as f/11 and smaller, so i chose to limit myself to that aperture - despite the loss of depth of field leading the image to be less sharp along the left edge due to the subject's surface curvature.

Editing: crop, cloning of sensor dust, tidying up the corners, and removing stray dust on the subject, curves to emphasise the blues in the shadows and reds in the midtones, resize and sharpen.

Description
A sectioned ammonite fossil; my first attempt at a proper photo with the 100mm f/2.8L macro. A beautiful lens, very well built, and optically excellent. I definitely need more practice to get used to it.

In this shot depth of field was a tradeoff against critical sharpness; I was shooting on a tripod with flash, so I wasn't limited in my choice of aperture. However, the majority of the subject matter was very close to the plane of focus, and I began to see losses in sharpness due to diffraction as soon as f/11 and smaller, so i chose to limit myself to that aperture - despite the loss of depth of field leading the image to be less sharp along the left edge due to the subject's surface curvature.

Editing: crop, cloning of sensor dust, tidying up the corners, and removing stray dust on the subject, curves to emphasise the blues in the shadows and reds in the midtones, resize and sharpen.