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  Previous versions of Aleksi M's message #12422012 « The Nikon 200mm f/2 Thread - part 2 »

  

Aleksi M
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Re: The Nikon 200mm f/2 Thread - part 2


This will quickly turn out to mess up the thread so I will write an explanation which hopefully won\'t leave any confusion.

Most of the questions would be answered just by clicking the link under the picture where for example a short explanation can be read about the taking of the picture. This is by no means a posed picture (for me) and I just took it while strolling around the park when I spotted these people. Therefore, the picture is taken where I happened to be at the time and this was across the water which put me several tens of meters away. The exif data, which can be read after clicking the link under the picture and then (i) for info, should have all the necessary information (D700, 200 mm, f2.0, 1/800, ISO 200 etc.) except for the focus distance which is not saved by photoshop CC (for example CS5.1 still saved this info). However, the exif of the raw image says that the focus distance recorded by the camera for this picture is 39.81 meters. If we calculate the subject distance based on the focal length (200 mm), the vertical height at the subject location (in the original 3:2 image the vertical height where the people are standing is 4.34 meters if we assume the man is around 170 cm tall. ), and the height of the D700 sensor (23.9 mm) we arrive at a value of 35.76 meters which is quite close to the value in the exif data and of course includes some error because I just estimated the vertical height.
http://blog.buberel.org/camera-lens-calculators.html



Jun 21, 2014 at 05:36 PM





  Previous versions of Aleksi M's message #12422012 « The Nikon 200mm f/2 Thread - part 2 »