作者davidlu (路路)
站內DSLR
標題[情報] Pentax 新鏡頭?
時間Sun Sep 16 06:44:49 2012
Pentax FB 頁面的情報:
smc PENTAX DA 18-270mm F3.5-6.3 ED SDM - Optical Design
The new smc PENTAX DA 18-270mm F3.5-6.3 ED SDM has several features to help
optimize overall image quality. The incorporation of two extra-low dispersion
(ED) elements into the design helps the lens deliver bright, high-resolution
images even at the edges, while effectively minimizing chromatic aberration.
Rounded lens diaphragm blades render out-of-focus areas in the image with an
exceptional smoothness, resulting in a beautiful lens bokeh* and minimizing
the streaking effect of point light sources.
*bokeh – a lens characteristic referring to how a lens renders out-of-focus
points of light
圖:
http://tinyurl.com/96ppdxb
SDM對焦、ED低色散設計、旅遊鏡的焦段
會燒到P家人嗎?
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