Shutters Phoenix

shutters phoenix
  • Close (a business)
  • (shutter) a hinged blind for a window
  • Close the shutters of (a window or building)
  • (shutter) close with shutters; "We shuttered the window to keep the house cool"
  • (shutter) a mechanical device on a camera that opens and closes to control the time of a photographic exposure
  • (in classical mythology) A unique bird that lived for five or six centuries in the Arabian desert, after this time burning itself on a funeral pyre and rising from the ashes with renewed youth to live through another cycle
  • a legendary Arabian bird said to periodically burn itself to death and emerge from the ashes as a new phoenix; according to most versions only one phoenix lived at a time and it renewed itself every 500 years
  • the state capital and largest city located in south central Arizona; situated in a former desert that has become a prosperous agricultural area thanks to irrigation
  • a large monocotyledonous genus of pinnate-leaved palms found in Asia and Africa
  • A person or thing regarded as uniquely remarkable in some respect

Phoenix 500mm lens sharpness test
Phoenix 500mm lens sharpness test
The Phoenix 500mm lens is a catadioptric lens in the $100 price class. Catadioptric lenses use a combination of mirrored and standard refractive elements to provide a lot of magnification in a (relatively) short form factor. Because they have a circular blockage at the front of the lens, they produce weird, donut-like bokeh and tend to be of general use only when your whole subject is in focus, or very close to it. The Phoenix is about 3 inches long, which isn't too bad at all for a 500mm lens. The lens is a prime, fixed f/8 lens that doesn't talk to the camera via the Canon mount, the Canon-style adapter has no electrical connections. So the camera defaults to reporting it as f/0, and you have to manually determine the best ISO/shutter combination for the circumstances at hand. There is a rule of thumb that says you should be shooting hand-held at (at least) the shutter rate that meets the mm of the lens, so 1/500th is the minimum. The test images were shot at 1/2000th and various ISO settings, this particular one at ISO 1600. I don't presently own a decent working tripod (lost some parts), so my tests are limited to hand-held for the moment. This image is about the sharpest one of my test set; I find it very difficult to achieve those last few fractions of fine focus with any camera over five megapixels - the details the camera can see are finer than those I can see. The focus point here was the wire where it attaches to the widget hanging down from the crossbar (see note.) The distance from me to the subject was about 75 feet. The image has been uploaded at high resolution, though not the highest JPEG quality; I reduced the JPEG setting until the image file came in under five megabytes. I don't think this has a significant effect upon luma sharpness, just the chromanance detail. So. For those of you who are really into lenses, please give me your unvarnished and honest opinions about the sharpness of the lens as demonstrated by this image. And thank you in advance.
PG - Phoenix
PG - Phoenix
July 13 2011 So lately I have been stressing a lot because there are too many things happening and a lot to juggle. So I hit up my buddy Aaron to see if he wanted to go to Kerry Park with me. Taking landscape pictures helps clear my mind. Also Aaron wants to use his new camera. Taking these pictures definitely helped me. Nikon D300 Tokina 11-16mm f/2.8 @ f/7.1 ISO 320 Shutter 13 sec Vivid Picture space WB 6250K

shutters phoenix
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