When photographing macro subjects like this reticulated glass frog in Costa Rica, depth of field is extremely shallow. The smaller the subject and the greater the magnification (to fill a large part of the frame with the subject), the less depth of field you have. Even if you use a ring flash as I did here and f/32 for maximum depth of field, with subjects that are tiny it's probable that you don't have enough DOF. Therefore, when you compose the shot make the back of the camera, i.e. the plane of the digital sensor, as parallel as possible with the plane of the subject. That contributes to depth of field. By doing that in this image, you can see that the entire frog as well as the leaf are both sharp.
0 Comments