Entry 34893 (Berkeley CSUA MOTD)

Berkeley CSUA MOTD:Entry 34893

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2025/04/04 [General] UID:1000 Activity:popular

4/4

2004/11/15-16 [Consumer/Camera] UID:34893 Activity:low

11/14   I need a digital camera capable of taking close up pictures that
        look good when I print it out on an 8.5 x 11 paper.  How many
        megapixels do I need for that?  I'm trying out http://shutterfly.com's
        photobook service and it's smart enough to warn me that my 3.2
        megapixels pictures are no good when I want to place it on one
        big page by itself.  I currently have a 3.2m Canon SD10.  Thanks.
        \- depending on what you mean by "closeup" this may be more of a
           lens question than pixel question. 3mp should be ok for 8x10.
           of course 5mp on a dSLR != 5mp on a point and shoot. --psb
           of course 5mp on a dSLR >> 5mp on a point and shoot.
           BTW, it's not just a matter of the quality of the lens but
           the DoF you shoot with ... on macro shots you can have DoF
           just be a couple of millimeters ... i have had the wings of
           a bug in focus but the bugs feet out of focus. and again,
           "closeup" can mean ... 3 feet or 3 inches. --psb
           \_ And use raw mode if you can.  Quality of a tiff from your
              raw image >> jpeg quality.  -meyers
              \_ Could you provide an example of a RAW/TIFF file that looks
                 an order of magnitude better than an otherwise equivalent
                 top-quality JPEG? -tom
        \_ "look good" is a relative term; it's possible to print at 8x10
           with 2 megapixels, and it looks fine for typical viewing distance
           (picture hanging on wall).  As psb notes, the lens is probably
           more important to think about than the megapixel rating; the lens
           on the Canon SD10 is tiny and probably isn't appropriate for
           macro work.  -tom

2025/04/04 [General] UID:1000 Activity:popular

4/4

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