Intaglio prints create images by incising lines into flat surfaces. Copper or zinc plates are used as matrices. Ink remains in recessed areas after surface ink removal. Paper is pressed into ink-filled grooves under high pressure
Linocut uses linoleum sheet for relief surface printing. Design is cut into lino with knife, creating mirror image areas. Ink is applied with roller and transferred to paper or fabric. Printing can be done by hand or with press
A5 paper measures 14.8 x 21 cm or 5.82 x 8.26 inches. It has a printing area of 312.5 cm² or 0.031 m². A5 is half the size of A4 and equal to 2xA6
A3 is the largest size in the A series, measuring 297mm x 420mm. Standardised in 1975 by ISO 216 international convention. Has a printing surface area of 0.125m² or 1250cm²
Based on Bill Atkinson's images and Photodisc's freeware version. Shows smooth black-to-gray-to-white transition. Helps determine white and black points. Features test color gamut ramps for banding detection. Includes useful objects for skin tone and shadow checking
A 4x6 photo is approximately 4 inches by 6 inches. The dimensions are 10cm x 15cm or 101.6 x 152.4mm. Smartphones have a 4:3 aspect ratio, requiring cropping