An example of a working system is shown below, with video and stacked image. Alone, it has a working distance of 19 cm, which is reduced to a few centimetres with extension tube and close-up adapter - with the compensating benefit of higher magnification, high resolution and working autofocus. To simulate a large, flat object, such as would be encountered for a fine art reproduction, a map was imaged so that when focused on the center the corners would be out of focus. The Olympus 60mm F2.8 Micro Four Thirds lens is excellent. A video ring light (or equivalent) allows work at close range.
#Helicon focus object examples movie#
The video can be previewed and stacked in camera, but better results can be obtained by processing the movie to remove beginning and end of the clip (as the focus settles), and process the movie directly in software such as Helicon Focus.įor small plants, a macro lens is essential, and an extension tube and Raynox close-up adapter allow imaging of cell-scale features.
In the appropriate mode, a shutter press will result in the collection of a short video that consists of a video sweep through the observed scene. The Panasonic cameras, with their advanced video handling, allow the rapid collection of extended focus images. Further, selected frames and extended focus views can be generated directly in the camera. G8, GX80/GX85, GH4/5) include a 4K photo mode, which allows collection of series of bracketed focus images at 4K resolution at video rates. For example, Panasonic and Olympus digital cameras allow for bracketed focus and in-camera focus-stacking in order to capture a precise description off features in small objects. Recent developments in optics and electronics allow new approaches to this challenge. The small size of the plants means that plant features may need to be captured at sub-millimetre, almost cellular scales. The documentation of liverworts in the field, growth room or laboratory can be a challenge.
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