回複：Hi, 版主好！Happy New Year to you too!

200 to 300 dpi is a good rule of thumb for printing.  With 40D, you can print your images to 20x30 if you process them properly.

Unless you want to print a poster, you should be fine with your 40D. When you submit your images for printing, you size them to 300dpi.  The printing shop will have no idea of what camera you used to produce your images.

Best regards,

Alex

 

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• Thx，Pls check your email，chicago/wuhan 攝影展春節前要結束了！ -chicago80- ♂ (74 bytes) () 01/11/2012 postreply 18:24:57