Comparison of our rails

Precision Focus Stacking SR-90P Rail QOOL Rail 250 Ultra Rail Ultra Rail Mini
Pitch 1 mm 2 mm 2 mm 1 mm

0,9 deg (400 turns/round)

1,8 deg (200 turns/round) 0,9 deg (400 turns/round) 0,9 deg (400 turns/round)
Travel distance 170 mm 70 mm 45 mm
Indoor/ Outoor This rail is can be used studio/home and outdoor. The motor unit that has the same form like a long Arca-Swiss-Plate can be removed from the rail and used with every Arca-Swiss compatible tripod for outdoor use. With a weight of 2 kg the QOOL rail is more intended to use at home/studio. The Ultra Rail is very precise and should be used at home/studio. The Ultra Rail Mini with 1mm pitch and 0,9 deg steppermotor shows the best results at home/studio. But because it is very small it can be also used outdoor, if needed.
Strenghts / Advantages Our best selling rail for an entry level price with 1 mm pitch and 0,9 deg stepper motor, proved and used by a wide group of photographers since years. Very stable construction for a competitive price. Although it has "only" 2mm pitch and 1,8 deg stepper motor, you can work with magnificatinos up to 100x because it has no wobbling. Super stable and very precise movements. Made of a real industrial rail that makes a big difference compared to other rails. Our top product with 1 mm pitch and 0,9 deg steppermotor, based on a super stable and precise industrial rail. It delivers the best and finest results of all our rails. 
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