Picture ID: 10563 - Order
Lavizan is a northeastern neighborhood of Tehran. Lavizan area consists of a residential area and forested recreation area called Lavizan Forest Park. The neighborhoods surrounding Lavizan are Majidabad, Qanat-kosar, Deh-e Narmak, and Ozgol. The park has an area of over 1,000 acres. Due to the natural environment in the park, creating a pleasant and happy moments and fun places for tourists.
I shot this picture to test two things. First to test the Panoral 810 camera, second to test the image circle of Schneider Apo Symmar 210/f5.6 lens. I needed a completely clear sky to see the corners of the image. I adjusted the camera without movements. So the lens axis was perfectly consistent with the central axis of the image. The image circle of Schneider Apo Symmar 210/f5.6 lens is 305mm at f22. I shot 2 images, the first with f22 and the second with f32. I didn't see any vignetting. Maybe because the lens was focused on the foreground trees. The distance from the camera to the trees was about 10 meters. I think I should take another shot when the camera is set to infinity.
I used the Panoral 810 camera and Schneider Apo Symmar 210/f5.6 lens. The image recorded, with aperture 32 and shutter speed 1/4 seconds on Foma No.2 8x10in paper negative.