回复 12# yemingxp
具体可以看P家的官方报道http://www.pentax.jp/english/news/2011/201107.html
就是有配件出来啦~~
最有特点的ASTROTRACER功能，通过GPS配件内的运算，和防抖组件的配合，可以消除星轨，最长曝光时间是5分钟。
ASTROTRACER for effortless astronomical photography
When mounted on the PENTAX K-5 or K-r camera body, the O-GPS1 also offers the advanced ASTROTRACER function,** which couples the unit with the camera’s SR (Shake Reduction) system for the effortless tracing and photographing of celestial bodies. The unit calculates the movement of stars, planets, and other bodies using the latitude obtained from GPS data and the camera’s alignment data (horizontal and vertical inclinations and aspect) obtained from its magnetic and acceleration sensors, then shifts the camera’s image sensor in synchronization with the movement of the objects.*** As the result, stars and other bodies are captured as solid points rather than blurry streaks, even during extended exposures. It also makes astronomical photography much simpler, as it requires only a tripod and eliminates the need for an additional accessory such as an equatorial telescope. |
显身卡
只能等看圖片