1,25 CRF Crayford focuser (176 mm) focusers opinie

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1.25 "Crayford focuser for Newtonian telescopes fi = 150.
High work culture and quality of workmanship in digital processing technology (CNC) is a real joy of using this extract.

Technical specifications

• construction: Crayford
• foot size: for 176 mm tube (Newton 6 "/ 150 mm)
• maximum length: approx. 13 cm
• minimum length: approx. 8 cm
• travel range: 47 mm
• eyepiece mounting standard: 1.25 "
• focus ring diameter: 31.5 mm
• weight: 387 g
• load capacity: up to 3 kg

Warranty

24 months

Margin remarks

The lift is great, but it's not the last word in the world of lifts :)
It is worth knowing that there is no brass clamping ring, no millimeter scale and no micrometer gear. The tube foot is not interchangeable with other GSO (two-inch) Crayford alloys.

It's good to understand that the design of the Crayford type lift (it's worth taking a look at even Wikipedia!) Has this specificity, especially when anodizing as in GSO lifts, that anodized coating, when in contact with a roller bearing, may sooner or later reveal two traces - like paths along which it comes to the lift sleeve. This may already be in the new statements - and it is not a defect, it can also be almost invisible. We warn you that this is simply a feature, not a disadvantage of this design.