Honeywell Pentax Auto Bellows  type_Film Scanners with both active and passive

with both active and passive cooling systems and a reasonably logical LCD-based interface

A lightweight slider bar with belt-driven crank system and drag control

This is not an old-school

They will not affect imaging

Honeywell Pentax Auto Bellows &nbsptype_Film Scanners with both active and passiveFirst things first: this is called a Honeywell Pentax bellows because Honeywell was distributing Asahi product in North America at the time, but it is a genuine Asahi product, not some weird knockoff. Anyway, this is a high quality macro bellows system for M42 thread mount cameras and lenses. Use it for macro work, or use the included slide copier to digitize your slides and negatives (with a compatible digital camera, adapter, and lens, which I feel