I keep one camera loaded with color film and another with B&W. When my workhorse Olympus bit the dust (no parts available to repair it) I decided to buy another N75 since I already was familiar, and satisfied, with operating it and had several lenses. However, I could not find one in B&H, Adorama,etc. so I turned to Ebay. There I bought what I thought was a duplicate of my N75 for $126 (body only). I was surprised when it arrived and it was an F75! Does anyone know what the difference is? The manual is the same.