At a magnification of 1x, typical of normal macro work, the field of view equals the width of the sensor, in this case 3.5 cm, and the depth of field is under 1 mm. We were a little worried due to the wind but once down onto the path the route to the top was less windy and relatively easy to navigate. At f/8 and a magnification of 0.1x, typical of a lot of field photography of plants, the field of view is about 35 cm and the dof down to 3 cm. The path to the top point is quite wide and firm, but care is needed as it is close to the edge of the cliff. Once at the site the steep escarpment face is quite daunting and it was windy when we arrived in the early morning. Overall, I would rate the route as good in a four-wheeled drive and it is easily doable in your own vehicle following Google Maps directions. We saw a couple of normal saloon cars who made it to the location, but they had to be very careful of not grounding the bottom of the car and drove much slower than our Landcruiser. for those like Annah who love the full moon 5 cm tall 2 / 6 cm wide 3 / 8 cm. There are one or two small wadis that need crossing and this is relatively easy in a four-wheeled drive car or one with good ground clearance. ANY COLOR Team Jacob Full Moon Wolfpack Endangered Wolf Beeswax Candle. The northern route, shown on Google Maps, is open all the time and is mainly across good hard ground. The southern route, through acacia wadi, is only open on Friday and Saturday and has a locked gate so is not passable during weekdays. Getting to the location involves a long off-road drive, but the routes are quite obvious. It even played an important role in Arabia’s History as along its foot was one of the ancient caravan trade routes that used to cross the Arabian Peninsula from Yemen into the Levant and Persia. This escarpment is part of the much longer Jibal Tuwaiq which is one of the most prominent natural features of Saudi Arabia as it spreads over 1 000 kilometers from the province of Najran on the south up to Qassim in the north. The photographs measure 21 x 21 cm.Jebel Fihrayn, better known as The Edge of the World, is one of the most popular destinations around Riyadh and was given its name because of the stunning views from the top of the 300-meter-high cliffs overlooking the surrounding plain.
With its phases reaching down to the narrowest crescent moon, the atlas not only makes it easier to recognize individual objects, but also to follow the constant changes in the view of the moon formations caused by the changing incidence of light.Įach photograph is numbered and contains following information on the back - moon phase, illuminated area, latitude and longitude and the date when the photo was made. It thus covers almost an entire lunation. It starts with the moon age of 1.9 days and ends with the moon age of 27.9 days. In collaboration with Hans Giebler, Voigt was able to record a total of 31 phases of the moon between 19 and compile them in the Berlin moon atlas, which depicts the phases of the moon with their shape changes progressing from day to day. The use of yellow-orange and red filters made it possible to reduce the brightness of the sky. Adolf Voigt built a camera for 6圆cm roll film that could be attached to the telescope and thus captured the entire moon image. The Bamberg refractor of the observatory (12-inch telescope) turned out to be the ideal instrument with its focal length of 5 m, which focally displayed the moon at a size of 5 cm. The idea of photographing the moon in all phases arose from the observation practice of the group of Berlin moon observers at the Wilhelm Foerster observatory in Berlin. A set of photographs of the Moon in different phases taken from 1964 to 1967.
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