It is usually suggested that image output resolution by 1.5 to 2 times the halftone screen frequency. I use a Epson 1520 printer that has dpi of 360, 720 and 1440. Nowhere does it say what the screen frequency is and Epson (at least in Chile where I live) does not seem to know.

Does anyone know the frequency of the Epson 1520.

Or, since I use a Nikon Coolpix 950 and photoshop 5.0 on black and white fotos, what resolution should I use outputing from photoshop?

To date, I have been using the 720dpi on the Epson 1520 with a resolution from photoshop of around 180 for prints that look rather good in black and white at around 7"x9.5" (16.5 x 22cm).

-- Arthur Conning (aconning@reuna.CL), September 05, 1999