The American annual of photography . tures. However, even midsummer dayshave morning and evening light, which is far preferable for thepurpose to the merciless glare of midday. If you must makesea pictures in summertime, do it before 9 a. m. or after m., and you will be better satisfied with your results. 253 The difficulty is to avoid flatness in the neo^ative and tosecure the normal contrast?; to ,e:et the foam on a curlingwave really white and sparkling, not gray, as it will be ifover-ex])osure is present. That is the idea in cutting down theexposure, or rather the amount of light ad
The American annual of photography . tures. However, even midsummer dayshave morning and evening light, which is far preferable for thepurpose to the merciless glare of midday. If you must makesea pictures in summertime, do it before 9 a. m. or after m., and you will be better satisfied with your results. 253 The difficulty is to avoid flatness in the neo^ative and tosecure the normal contrast?; to ,e:et the foam on a curlingwave really white and sparkling, not gray, as it will be ifover-ex])osure is present. That is the idea in cutting down theexposure, or rather the amount of light admitted during expo-sure. Try a few experiments with small apertures under whatyou would consider inland unfavorable conditions: say, on asunny December afternoon, try 1/25 sec. at F32 on a fairlyopen sea piece. Dont-have a mass of black rock in the nearforeground, and expect to get shadow detail in it, but it maysurprise you to find how well rocks forty or fifty feet awayare lighted, even by the winter sun, and the mass of reflected. light from the sea. If you cant get to the sea in winter, trythe same thing in the waning light of approaching evening insummer. Simply as an object lesson in exposure, my first illus-tration (Figure i) shows how small an amount of the intenselyactinic light of the seashore is needed to make a printable im-pression on the sensitive film. This negative was made on packfilm with a needle-hole in place of a lens. Data as follows:—diameter of needle-hole, mm., about 1/60 in.; distance,between needle-hole and film, ^y^ in.; exposure, i/io sec. at 11a. m. in September, sun shining. A little calculation will show that if a lens had been used,the stop corresponding to the aperture of the needle-hole wouldhave been about F210. My object is, of course, not to advo- 254
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1919
