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THE COMPARATIVE EVALUATION OF FILM-SCREEN COMBINATIONS

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Abstract

sensitometer¸¦ ÀÌ¿ëÇÏ¿© Ç¥ÁØÇü Çʸ§°ú orthochromaticÇʸ§ÀÇ °¨±¤µµ¿Í Æò±Õ°èÁ¶µµ¸¦ Ãø
Á¤ÇÏ°í, À̵é Çʸ§°ú ÈñÅä·ù Áõ°¨Áö ÀÎ Lanex Regular, Lanex Medium, Lanex Fine¹× ÀϹÝ
ÇüÁõ°¨Áö Optex Medium, Optex High, X-Omatic Regular, Okamoto DHS¸¦ ¼­·Î Á¶ÇÕÇÏ¿©
stepwedge¸¦ 2, 3, 4, 6, 10, 15, 24, 38, 60 impulse·Î ÃÔ¿µÇÑ ÈÄ ÈæÈ­µµ¸¦ ÃøÁ¤ÇÏ¿© ´ÙÀ½°ú
°°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. º» ½ÇÇè¿¡¼­ »ç¿ëµÈ 5Á¾ Çʸ§°£ÀÇ ÈæÈ­µµ´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾úÀ¸¸ç Çʸ§°ú Áõ°¨Áö¸¦
Á¶ÇÕÇÑ °æ¿ì¿¡´Â Çʸ§º¸´Ù Áõ°¨Áö¿¡ ´ëÇØ À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾ú´Ù.
2. û»ö±¤¿¡ ³ë±¤µÈ Çʸ§µéÀÇ °¨µµ´Â Å« Â÷ÀÌ°¡ ¾ø¾ú°í, ³ì»ö±¤¿¡ ³ë±¤µÈ °æ¿ì´Â TMGÇÊ
¸§ÀÌ ³ôÀº °¨µµ¸¦ ³ªÅ¸³ÂÀ¸¸ç, Æò±Õ°èÁ¶µµ´Â AXÇʸ§ÀÌ °¡Àå ³ô¾Ò´Ù.
3. Çʸ§°ú Áõ°¨Áö Á¶ÇÕ¿¡ ÀÇÇÑ »ó´ë °¨µµ´Â ÀϹÝÇü Áõ°¨Áö¿¡¼­´Â OKa, ÈñÅä·ù Áõ°¨Áö¿¡
¼­´Â LR¿Í Á¶ÇÕÇÑ Çʸ§¿¡¼­ ³ô¾ÒÀ¸¸ç, ƯÈ÷ LRÁõ°¨Áö¿Í Á¶ÇÕÇÑ Ç¥ÁØÇü Çʸ§¿¡¼­µµ ³ôÀº °¨
µµ¸¦ º¸¿´´Ù.
4. Çʸ§°ú Áõ°¨Áö Á¶ÇÕÀÇ Æò±Õ°èÁ¶µµ´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸¸ç, OKaÁõ°¨Áö¿¡¼­ ³ô¾Ò´Â
µ¥ ÀÌÁß OKa/AX°¡ °¡Àå ³ô¾ÒÀ¸¸ç ÈñÅä·ù Áõ°¨Áö¿¡¼­´Â LR/OG°¡ ³ô¾Ò´Ù.
5. Çʸ§°ú Áõ°¨Áö Á¶ÇÕÀÇ °ü¿ëµµ´Â Ç¥ÁØÇüÇʸ§¿¡¼­´Â LMÁõ°¨Áö¿Í Á¶ÇÕÇÏ¿´À»¶§,
orthochromaticÇʸ§¿¡¼­´Â OMÁõ°¨Áö¿Í Á¶ÇÕÇÏ¿´À» ¶§ ³ô¾Ò°í, Áõ°¨Áö¿¡ ÀÇÇØ À¯ÀÇÇÑ Â÷ÀÌ
°¡ ÀÖ¾ú´Ù.
6. Çʸ§°ú Áõ°¨Áö Á¶ÇÕÀÇ ÇÇ»çü ´ëÁ¶µµ´Â Áõ°¨Áö¿¡ ÀÇÇØ À¯ÀÇÇÑ Â÷ÀÌ°¡ ÀÖ¾úÀ¸¸ç Ç¥ÁØÇü
Çʸ§ AX³ª orthochromatic Çʸ§ TMG¸¦ LR Áõ°¨Áö¿Í Á¶ÇÕÇÒ¶§ °¡Àå ³ô¾Ò´Ù.
#ÃÊ·Ï#
This study was to compare the quality of image by different screen and film
combinations.
Using the sensitometer measured the speed and average gradient of blue sensitive
films and orthochromatic films. The films was combined with rare earth screen LR, LM
, LF and conventional screen OM, OH, XOR, OKa and exposed the stepwedge to
impulse 2, 3, 4, 6, 10, 15, 24, 38, 60 and measured the density.
The following results were obtained:
1. The density of film and film-screen combinations showed significant difference,
then in film-screen combinations was significantly different by the screens than films.
2. The speed of blue sensitive films was little different, the TMG of orthochromatic
films produced high speed, and the AX film was high average gradient.
3. The relative speed of film-screen combinations showed significant difference, and
was high in the OKa of the conventional screens and in the LR of the rare earth
screens, especially that of LR screen in the combination with blue sensitive films was
high.
4. The average gradient of film-screen combinations showed no significant difference,
and was high in the OKa screen and LR/OG combination, and that of OKa/AX
combination was highest.
5. The latitude of film-screen combinations showed significant difference by screens,
and was high in the LM screen in combination with blue sensitive films and in the OM
screen in combination with orthochromatic films.
6. The subject contrast of film-screen combinations showed significant difference by
screen, and was high in the LR screen in combination with blue sensitive AX film and
orthochromatic TMG film.

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