Resolution


Drum scanners offer the best resolution and sharpness out of any type. Different to a flatbed scanner, they offer auto and manual focus capabilities, as well as an adjustable aperture. Controlling the size of the aperture directly affects how apparent the grain is in the scan, while still retaining all the detail. With these features, you can be sure your scans will be as sharp as the original.

Example 1: 6x6 Fuji Velvia 50, 4k dpi, 100% Crop

Epson Flatbed - Scanned at 6400 dpi, no sharpening - click on image to see full size

Although the Epson claims an optical resolution of 6400 dpi, it's clear that this is just marketing hype. Look closely at the rails on the top floor balcony, they're barely visible in the flatbed scan.

Drum Scan - Howtek 4500 - Scanned at 4000 dpi, no sharpening - click on image to see full size

Notice the much clearer rails on the balcony, as well as the foliage in the foreground. You can actually see the film grain in this drum scan, compared to the Epson.

Example 2: 4x5” Ektar 100, 4k dpi

Howtek 4500 - Ektar 100 4x5”, 4k dpi

See magnifications below:

Howtek 4500 - Ektar 100 4x5”, 4k dpi @ 100%