Which resolution is best to take standard prints?
This depends greatly on the size of the print. Both will produce an excellent 4 x 6 or 5 x 7 print. If you want to go to larger prints or you want to do digital editing and crop away unwanted parts of pictures, then you might need 5 mp. Honestly, though, 3 mp is fine for most everyday digital photography needs. Put in math teacher terms, you need a bit less than 100,000 pixels for each square inch of a good quality print. So 1 megapixel is good for 10+ square inches (a print of a little more than 3 by 3 inches). 3 mp gets you over 30 square inches of print area, so 4 by 6 is easily within reach and 5 by 7 (35 square inches) is just above the limit for excellent quality. The 5 mp gets over 50 square inches of excellent print quality, which makes 5 x 7 easy but an 8 x 10 will be imperfect. Many photo printers will object when the dot density is below 220 per inch. At that density you need about 50,000 pixels for a square inch, so a 3 mp can stretch to do 60 square inches and a 5 mp can s
