Scored a photocopy stand! Need help on the bulbs for it and maybe rewiring

[Major Nikon]

13. There's only 300dpi (or less) of information in the best color print

Last edited Mon May 5, 2014, 08:28 PM - Edit history (1)

For documents and other things, it's going to be less than 300dpi and will be dependant on how it was printed. At some point the resolving power of the camera and lens is going to be more than the information available on what you are copying.

Here's how you figure out what the camera is capable of doing. The APS-C sensor on the D70 is ~ 2,000 pixels by 3,000 pixels. So for 300 dpi, divide 2,000 by 300 and you get 6.66". Divide 3,000 by 300 and you get 10". This means that anything smaller than 6.66" x 10" will be > 300dpi and anything larger than this will be < 300 dpi. For an 8 x 10 photo, you'd probably have to get a loupe on the final print to notice much difference and this assumes a high quality print you are duplicating.

Most likely your weakest point is going to be your lens and where you're going to notice the weakness is on the edges of what you are copying because the lens will be less sharp as you move out from the center. That's why I recommended you get the 55/2.8. With that lens you'll be able to focus as close as you want and fill up the entire frame, even with smaller prints. Sharpness will also be pretty even with very few aberrations on the edges.