Ya say you want a resolution? Well, all right!
This page was created for use in my former teaching. It is only occasionally updated resulting in many links being more of historical rather than current usefulness. Over time many links will suffer link rot.
Digital Photography: Today and Tomorrow
With 10 megapixel CCDs (digital imaging elements) on the horizon, it is easy to predict the downfall of film. CCDs are more light sensitive than film, so a camera with 10 megapixel resolution would be more flexible than a film solution of similar quality (this would correspond to approximately 800 speed film). However it is important to note that most Pro photographers use film of speeds 25 or 50, and to equal the quality possible with such film, digital cameras may potentially need 50 megapixels, or more.
How many pixels are there in a frame of 35mm film?
20 million "quality" pixels in a top-quality 35mm shot.
Digital or 35MM?
Photos I would not have gotten with a digital camera
Digital Photography: The Myth of Resolution
Lesson 2: Understanding Resolution
An Introduction to Digital Photography
Dan Heller's Tutorial Series: Digital Photography
: Articles : Digital Photography Skills
The British Columbia Digital Library: Construction Tools: How-To Manuals Standards
TASI :: Technical Advisory Service for Images
Typical Resolution values for common output devices:
|Monitor||72 - 96 LPI|
|Inkjet||75 - 125 LPI|
|Newsprint||80 - 100 LPI|
|Books||120 - 140 LPI|
|Magazines||150 - 175 LPI|
|Art Magazines & books||200 - 250 LPI|
|192 by 128||24,576||Base/16|
|384 by 256||98,304||Base/4|
|768 by 512||393,216||Base|
|1536 by 1024||1,572,864||4Base|
|3072 by 2048||6,291,456||16Base|
|6144 by 4096||25,165,824||64Base|
Printing Kodak Photo CD images
A few scanning tips
|Kodak's name for the size||Image size|
|6144x4096||Base*64 (Optional Master)||75 megabytes|
|2048 x 3072||Base*16||18,874,368|
|1024 x 1536||Base*4 (same resolution as HDTV)||4,718,592|
|512 x 768||Base (same resolution as TV)||1,179,648|
|256 x 384||Base/4 (Thumbnail)||294,912|
|128 x 192||Base/16 (Small Thumbnail)||73,728|
Base/16 129 x 192 73.7Kb Low res monitor preview Base/4 256 x 384 249.9Kb Index print thumbnails Base 512 x 768 1.1Mb Television or monitor display Basex4 1024 x 1536 4.7Mb Prepress scan for 3"x5" max @ 150 lpi Basex16 2048 x 3072 18Mb Film output; prepress for up to 8"x10"
FROM 35MM: Base/16 129 x 192 73.7Kb Low res monitor preview Base/4 256 x 384 249.9Kb Index print thumbnails Base 512 x 768 1.1Mb Television or monitor display Basex4 1024 x 1536 4.7Mb Prepress scan for 3"x5" max @ 150lpi Basex16 2048 x 3072 18Mb Film output; prepress for up to 8"x10" Basex64 4096 x 6144 72Mb Prepress for over 8"x10"
FROM OTHER SIZES: FILM SIZE 6-RES IMAGE PAC FILE SIZE 5-RES IMAGE PAC FILE SIZE 35mm full frame 4096 x 6144 pixels-72MB 2048 x 3072 pixels-18MB 4.5cm x 6cm 4096 x 3072 pixels-36MB 2048 x 1536 pixels- 9MB 6cm x 6cm 4096 x 4096 pixels-45MB 2048 x 2048 pixels-11MB 6cm x 7cm 4096 x 4780 pixels-55MB 2048 x 3490 pixels-14MB 6cm x 9cm 4096 x 6144 pixels-72MB 2048 x 3072 pixels-18MB 4" x 5" 4096 x 5200 pixels-59MB 2048 x 2600 pixels-15MB
David J. Hark
P. O. Box 201 Shepherdstown, WV 25443-0201
Last updated: 9 January 2006
© 2004, 2005, 2006 David J. Hark