With all the time we're spending indoors right now, this is a great opportunity to dust off your tilt/shift lens – and these optics are perfect for fantastic food photographs and tip top product shots.
Close-up photography is all about capturing detail. Whether the image is a macro shot of a plant in a natural setting or a magnified product image, the goal is the same – to depict elements of the subject that are not easily visible with the naked eye alone.
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A characteristic feature of close-up images is shallow depth of field, introduced by the close focussing distances employed. While this can compliment some subjects, with commercial product shots or scientific record images of natural subjects this fall-off in sharpness is often undesirable.
For this image of a food product, it was essential to render the front item equally sharp across its surface. While it is possible to extend depth of field by stopping down the aperture, the high f-number required would compromise lens resolution due to diffraction.
This is where a tilt/shift lens comes into play, as it is capable of adjusting the angle of the focal plane so that it covers more of the subject without stopping down significantly.
This enables us to make use of the lens’ optimal aperture – which in the case of this Nikon PC-E Micro Nikkor 45mm f/2.8D ED is around f/5.6 – while still achieving the required depth. A macro tilt/shift optic is an incredibly powerful tool, enabling you to achieve high magnification along with perspective and focus control.
01 Arrange the scene
Set out your items, staggering them for added interest. Ensure that there are no distractions. Here we used a large soft light from behind and a focussed strobe from the side.
02 Set camera height
Obviously a tripod is critical to maintaining pinpoint precision. While depth of field is increased by shooting at 90° to the subject, here it was necessary to aim the camera down at around 45° to capture the top surface of the product. This also controls background detail.
Step 3: Calculate exposure
Since we will be avoiding small aperture settings, controlling lighting is essential. Use Manual mode, set an appropriate shutter speed and adjust the strobe output accordingly if using flash.
Step 4: Compose the shot
Arrange the frame so that the subject fills the composition, making use of the lens’ macro capabilities. The angle here has restricted context to suggest a bakery setting, but with clear subject focus.
Step 5: Rotate the lens
For vertical tilt, first press the rotate lock switch and twist the front lens section to rotate it into the vertical position. This will enable the tilt and shift mechanism to move the lens up and down.
Step 6: Tilt the lens
Twist the control knob to set positive tilt and align the focal plane with the subject. Use live view or the viewfinder to monitor DOF as you work. Here full tilt was required for maximum focus across the pastry.
Step 7: Adjust focus
Use the manual ring to adjust the position of the focal plane, to ensure your subject is correctly focussed. Here the front of the forward subject was used as the focal point to maximize visible sharpness.
Step 8: Customize f-stop
Zoom in on your LCD to check that the front and back of the subject are equally sharp. Adjust aperture to further control depth of field – here stopping down to f11 brought out more detail in the rear subject.
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