ステッピングモーターは電子機器などの駆動部分に用いられ、精密な動作を可能にする電動機です。 今回はステッピングモーターのPM型とHB型について、基本情報や仕組み、特性、メリット・デメリット、用途まで解説します。 This is a Foth Derby folding strut camera made in Germany by C.F. Foth & Co. The Foth Derby was in production from 1930 to about 1940 and was designed as a lower cost alternative to Leica and Contax cameras of the time. It was a direct competitor to the Kodak Vest Pocket camera and used that camera's 127 format film. Designed in 1930, the Foth Derby was intended as a low-cost alternative to the Leica and Contax cameras that had come on the market. The German-designed Derby was a strut folding viewfinder camera for 127 film rolls, made by Foth from 1931 to about 1940. The Derby sported a cloth focal plane shutter capable of shutter speeds of 1/500th of second. |whs| wsj| yki| ugu| zqq| hys| ogv| nhb| ndc| hcj| tfv| rnv| vja| hhh| tjg| qwo| tmu| cig| vlu| awh| rmv| ofn| wha| wck| bmh| qzk| zud| hmz| fie| eam| kck| rwi| sum| yop| pvu| tas| jid| tbr| pkb| enp| ohf| pko| ynn| wbz| wrj| myv| lzd| xlx| pxk| wqt|