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Scientific American, Vol. 96, No. 13 (March 1907) (1907)

leaf 9

An illustration from Scientific American, Vol. 96, No. 13 (March 1907), 1907, leaf 9
the bulb lever and is unlocked by a second the plate and underexpose others. When the speeds posing the corners of the plate more than the center. action of the release mechanism. Slow, instantaneous, are higher than 1/150 of a second, the imperfect illum- Vignetting is consequently impossible even… … adjusting the width should be of special of the slit, higher or value for portrait Exposure 35*00 seconds; f. 56. Exposure r^a seconds; f. 66. Exposure T^B second?; F. 6*. and landscape stud- lower speeds are ob- Three Difficult Subjects Taken With the Multispeed Shutter. The Good Definition Should…

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