• flowers,  Lightbox,  Macro

    Color phantasy

    For the first composition today I started with cornflowers on lightbox. I always have liked cornflowers with their typical cornflower blue. With this composition I wanted to show different stages of cornflower development in one image.

    Cornflowers © Julian Köpke

    I also liked very much the yellow of a craspedia globosa that Christa bought this morning. To bring out the colors I decided to install them in my „darkroom studio„. I made the image as a frame average of some 15 exposures, 3s each at f/16 and ISO 800.

    Craspedia globosa © Julian Köpke

    I developed a combination of colours that the garden offered me with the craspedia globosa to create this picture, in which red, blue, yellow and green play a leading role.

    Craspedia, cornflower and heucheria © Julian Köpke
  • Documentation,  General,  Landscape

    Frame averaging

    Otto Flechtenmacher was a painter who lived in Austria, an uncle of Christa. I often did photography for documentary purposes, especially paintings.

    This morning I listened to a workshop of portrait photography. To some extend the audience received explanations of the PhaseOne camera, which I use quite frequently. The vast dynamic range and the frame averaging feature of a PhaseOne were mentioned.

    To reproduce these features I intentionally underexposed a photo of a painting of Otto. The original histogram can be seen on the left, the processed one on the right. The quality is quite surprising, when you are used to full frame sensors.

    Typical histogram of the RAW-files
    Typical histogram after processing in CaptureOne

    To compare the quality of a single shot image to frame average files, I did a sample of a single shot and two shots of 5 and 9 averages. Clearly, noise will be reduced. At the same time, structures come out more detailed, what might be seen from the following examples:

    I never thought of using this feature for landscape photography – but it makes sense. By applying frame averaging you can get a landscape photograph with preserved highlights and well structured dark parts.

    Roses - oil painting by Otto Flechtenmacher © Julian Köpke