M80 ( Camera's mount requires additional fastening nut 80x0.75mm diameter。 ) LOMO ロシア(ソビエト連邦)インダスター37 industar-37 大判折りたたみカメラFKD ,18x24cm ( 180x240mm)フィルムサイズWOODEN , 焦点距離は300mmです。 レンズの開放F値は4.5です。 このカメラ 極上のコンディション。 [シリアルナンバー] 750487 TECHNICAL FEATURES : The lens is signed: I-37 P F=30cm 1:4.5 Coated optics Focus: 300 mm Angle of view: 53 degrees。 Format: it will cover up to 18x24 cm format。 Resolution (in pairs of lines per 1 mm at full opened aperture): not less than 22 in the center and 5 on the edge of frame。 Optical registration: 287.84 mm。 Aperture: scale begins at 4.5, up to 64, no clicks。 Aperture consist off 21 elements and provides very accurate circular shape at all installed meanings。 Filter mount is screw-mount 76x0.75mm, but it looks that the lens should accept external 85mm spring-mount (push-up) filters only。 Camera's mount requires additional fastening nut 80x0.75mm diameter。 The lens was made in 1976 in USSR |