ACT 41 AND 42
41/ Think you want to print out a photograph with a size of DIN A4: 210 × 297 mm
maintaining a printing quality of 200 dpi. Which resolution would the image need?
Print Size=DIN A4→210x297mm
Quality 200dpi
297mmx1inch÷254mm=11,7
11,7x200=2340÷1500=1,56
42/ Which resolution would the same picture need to have a 300 dpi picture?
The resolution that needs is 1200x1800