Home :: MOUNT ACCESSORIES :: Focusers & Other Accessories :: 365Astronomy 1.25" Non-rotating Helical Micro Focuser with T-thread and 0.05mm Scale
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365Astronomy 1.25" Non-rotating Helical Micro Focuser with T-thread and 0.05mm Scale

365Astronomy 1.25" Non-rotating Helical Micro Focuser with T-thread and 0.05mm Scale

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in In stock (10)
Model
VSCF36503-HELICAL
Weight
0.18 kg
RRP:
£48.00
Our price:
£38.90
19%

including VAT 20.00 % ( £6.48 )
Qty

Pin it
C17

Non-turning Helical Microfocuser with Male T-thread, 1.25" eyepiece holder with brass compression ring and 0.05mm scale for very precise focusing

The attached accessory (i.e. camera) stays in position when you turn the focusing as it is a non-rotating helical focuser.

Features of the Non-rotating Helical Focuser

2 x thumbscrews to hold the eyepiece
1 x thumbscrew to secure focusing position
T-thread at top end to attach a guide camera or other accessory
Extremely light: 92g
Optical length: 45 - 56mm (appr. 10.65mm focus travel)
Above optical length is shorter when you use a T-threaded accessory as you'll screw the accessory into the top of the focuser...

Telescope side thread is 31mm with 0.45mm pitch.
Internal diameter at telescope side: 27.5mm
M31 to T-thread adapter included

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