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The alternative Super series, denoted SnR, nR Plus or nR+, has an aspect ratio of 3∶2 (or as close as possible) and thus provides a better fit for standard 135 film (35 mm) at sizes of 8 inches or above. 5R is twice the size of a 2R print, 6R twice the size of a 4R print and S8R twice the size of 6R. 4D/6D is a newer size for most consumer ...
Postcard format 123 roll film 1904 1949 4 × 5 in 101.6 × 127 mm 124 roll film 1905 1961 3 + 1 ⁄ 4 × 4 + 1 ⁄ 4 in 82.55 × 107.95 mm 3.716-inch spool: same picture size as 118 with longer spool 125 roll film 1905 1949 3 + 1 ⁄ 4 × 5 + 1 ⁄ 2 in 82.55 × 139.7 mm
Pixels per inch (or pixels per centimetre) describes the detail of an image file when the print size is known. For example, a 100×100 pixel image printed in a 2 inch square has a resolution of 50 pixels per inch. Used this way, the measurement is meaningful when printing an image.
A standard consumer print size for photographs. See Standard photographic print sizes; the Railroad Revitalization and Regulatory Reform Act, also known as the "4R Act" the short-lived acronym for Neljä ruusua ('Four Roses'), a Finnish band, aiming for a broader international appeal
These medium format cameras used 120 film rolled onto spools. The 6 × 6 cm image size was the classic 1:1 format in the recent past. 120 film can still be found and used today. Many Polaroid instant films were designed as square formats. Furthermore, up until August 2015, photo-sharing site Instagram only allowed users to upload images in 1:1 ...
CALS raster file format .cal, .cals, .ras, .dcl CIFF: Camera Image File Format Canon.crw, .ciff CR2: Canon RAW 2 Canon: TIFF .cr2 CDR: CorelDRAW Document Corel Corporation.cdr, .ccx, .cdt, .cmx application/coreldraw CorelDRAW No CD5: Chasys Draw IES Image John Paul Chacha .cd5 Native format for Chasys Draw IES for storing layered images and ...
The ground sample distance (GSD) of an image, the pixel spacing on the Earth's surface, is typically considerably smaller than the resolvable spot size. In astronomy , one often measures spatial resolution in data points per arcsecond subtended at the point of observation, because the physical distance between objects in the image depends on ...
Image scaling can be interpreted as a form of image resampling or image reconstruction from the view of the Nyquist sampling theorem.According to the theorem, downsampling to a smaller image from a higher-resolution original can only be carried out after applying a suitable 2D anti-aliasing filter to prevent aliasing artifacts.