طباعة الشرائح الملونة .. الطباعة .. كيفية التقاط وتطوير الصور الملونة

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  • طباعة الشرائح الملونة .. الطباعة .. كيفية التقاط وتطوير الصور الملونة

    طباعة الشرائح الملونة .. الطباعة .. كيفية التقاط وتطوير الصور الملونة

    COLOUR SLIDE PRINTS

    Colour transparencies can be printed directly onto paper , using the same tech- niques described for colour negatives . The main difference is that , because a positive image is being made from another positive image , there are extra steps in the process , just as there are in processing colour slide film . Also , any changes to the filtration and exposure are the opposite of those for colour negative printing . When making a print directly from a slide , more light from the enlarger gives a lighter image and adding a filter of one colour gives an increase in the same colour to the printed image . The edges of the print , if they have been held down normally by the frame in the easel , appear black .

    ABOVE LEFT AND BELOW LEFT Kodachrome has a very high blue sensitivity . In these pictures , the yellow cast from the setting sun ( below ) has been counteracted by the blue sensitivity of Kodachrome ( above )

    LEFT AND BELOW Colours can be made deeper when using slide film by underexposing slightly .

    Most of the same equipment chosen for printing negatives can be used here . One difference is in the selection of printing filters , if you do not have a dial - in colour head on your enlarger . Cyan filters are often needed , so make sure that you have a selection of these , in different strengths . As with the negative print- ing process described earlier , a drum is recommended for ease and conveni- ence . In fact , the need for absolute darkness when handling the paper also makes it safer .

    The preparation and exposure stages are the same as for a colour negative , but see page 119 for the filter and exposure changes needed when you make corrections after the initial test print . Kodachrome slides , which are different in chemistry from other E - 6 films , will need different filter packs when printing .

    Mix and warm up the solutions as described on page 110. There are more of these than in negative printing , so make sure that the water bath is large enough for all the containers . Take the same precautions in maintaining the correct temperature : 37.8 ° C ( 100 ° F ) with a variation of no more than 0.3 ° C ( 0.5 ° F ) . Follow the instructions step by step . As the print is hung up to dry , it will have a bluish cast , but this will clear during drying . Do not try to evaluate the print until it is quite dry .

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الإسم:	CamScanner 14-10-2024 13.23_1.jpg 
مشاهدات:	25 
الحجم:	165.6 كيلوبايت 
الهوية:	241494 اضغط على الصورة لعرض أكبر. 

الإسم:	CamScanner 14-10-2024 13.25_1.jpg 
مشاهدات:	19 
الحجم:	134.2 كيلوبايت 
الهوية:	241495 اضغط على الصورة لعرض أكبر. 

الإسم:	CamScanner 14-10-2024 13.27_1.jpg 
مشاهدات:	18 
الحجم:	102.8 كيلوبايت 
الهوية:	241496 اضغط على الصورة لعرض أكبر. 

الإسم:	CamScanner 14-10-2024 13.28_1.jpg 
مشاهدات:	17 
الحجم:	155.8 كيلوبايت 
الهوية:	241497 اضغط على الصورة لعرض أكبر. 

الإسم:	CamScanner 14-10-2024 13.29_1.jpg 
مشاهدات:	19 
الحجم:	185.0 كيلوبايت 
الهوية:	241498

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