تنقيح الطباعة البسيطة .. المعالجة والطباعة بالأبيض والأسود .. المرشد خطوة بخطوة للتصوير الفوتوغرافي
Simple print retouching
Although you may take the greatest care , occasionally an unwanted mark will turn up on your prints . Usually this will be grit or dirt on the film that has been magnified along with the image to form a noticeable mark . More seriously , you may find your negative has scratch lines ( which print white ) or pinholes ( which form black specks ) . You can hide most of these defects by re- touching the final print - by " spotting " or " knifing " each mark until it merges with its surroundings . This is a job for which you require the few tools shown right : a very fine brush , a scalpel blade and holder , either black retouching dye or water - color , and a small ceramic palette or saucer .
1. Tube of watercolor
2. Black retouching dye
3. Palette
4. Fine brush
5. Scalpel blade in holder
Spotting and knifing
It is much easier to retouch a print on mat , semi - mat or luster surface paper than on glazed . glossy paper its finish readily shows up retouched areas .
Retouch black specks by gently brushing them with the scalpel blade so that they are gradually reduced to the desired tone .
For white marks , use diluted dye or watercolor on an almost dry brush . Build up and match the white areas to the adjacent grain pattern by stippling with the brush in gray . The retouched print below shows the results you can achieve with practice .
Simple print retouching
Although you may take the greatest care , occasionally an unwanted mark will turn up on your prints . Usually this will be grit or dirt on the film that has been magnified along with the image to form a noticeable mark . More seriously , you may find your negative has scratch lines ( which print white ) or pinholes ( which form black specks ) . You can hide most of these defects by re- touching the final print - by " spotting " or " knifing " each mark until it merges with its surroundings . This is a job for which you require the few tools shown right : a very fine brush , a scalpel blade and holder , either black retouching dye or water - color , and a small ceramic palette or saucer .
1. Tube of watercolor
2. Black retouching dye
3. Palette
4. Fine brush
5. Scalpel blade in holder
Spotting and knifing
It is much easier to retouch a print on mat , semi - mat or luster surface paper than on glazed . glossy paper its finish readily shows up retouched areas .
Retouch black specks by gently brushing them with the scalpel blade so that they are gradually reduced to the desired tone .
For white marks , use diluted dye or watercolor on an almost dry brush . Build up and match the white areas to the adjacent grain pattern by stippling with the brush in gray . The retouched print below shows the results you can achieve with practice .
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