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江南XJG—04型金相显微镜,未配置135胶卷摄影系统,只能用胶片拍摄出尺寸为8.25×12cm的金相底片。为能用135相机在该仪器上摄取35×35mm的金相底片,而又不需对原仪器作任何改造,我们进行了一些尝试。作者认为该方法简单易行,适应于黑白及彩色金相摄影,同时又能较精确地反映出所摄金相组织的放大倍率。一光源及曝光参数的选择拍摄35×35mm金相底片时,摄影光源采用该仪器附设的氙灯照明,加否滤色片均可。若拍摄彩色金相照片,应不加任何滤色片,而拍摄黑白片时则加上淡蓝色滤色片较佳,这样可提高金相组织的反差及衬度。下面仅就21°DIN和31°DIN胶卷推荐几组曝光参
Jiangnan XJG-04-type metallographic microscope, not equipped with 135 film photography system, can only film out the size of 8.25 × 12cm metallographic film. In order to use the 135 camera to take 35 x 35mm metallographic film on this instrument without any modification to the original instrument, we made some attempts. The author believes that this method is simple and easy, suitable for black and white and color metallographic photography, but also more accurately reflect the magnification of the microstructure. A light source and the choice of exposure parameters When shooting 35 × 35mm metallographic film, photographic light source attached to the instrument using xenon lamp lighting, plus no filter can be. If you take color metallographic photos, should not be any color filter, and when shooting black and white film is better when coupled with light blue filter, which can improve the contrast and contrast of the microstructure. The following are recommended groups of exposures for 21 ° DIN and 31 ° DIN film only