Home :: MOUNT ACCESSORIES :: Focusers & Other Accessories :: 365Astronomy 1.25" Non-rotating Pull-Out Fine Focuser with Female T-thread with 10mm Focus Travel

365Astronomy 1.25" Non-rotating Pull-Out Fine Focuser with Female T-thread with 10mm Focus Travel

Manufacturers View products from this brand

in In stock (10)
Model
362522
Weight
0.18 kg
RRP:
£29.70
Our price:
£18.60
37%

including VAT 20.00 % ( £3.10 )
Qty

D8-15

365Astronomy 1.25" Non-rotating Pull-Out Fine Focuser with Female T-thread with 10mm Focus Travel

Could also be considered as a variable extension tube with male-female T-threads at the two ends...

Althought this is NOT a Non-turning Helical Microfocuser, it could be used similarly as it will also not rotate when you focus with it, but instead of a helical movement, it has got a much simpler, however still very precise pull-out movement without any wobbling.

So if you have a steady hand and don't requiry extremely precise focusing, this might be a good solution, and also a very cheap one.

On the telescope side it comes with a female (rather than male) T-thread (M42x0.75mm) and on the eyepiece (or camera) side it comes with a male T-thread and 1.25" eyepiece holder with brass compression ring.

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

POSSIBLE USE:

  • this focuser could be used on a flip mirror in the straight through position as flip mirrors usually come with a reverse T-adapter, i.e. you could screw this focuser onto a male T-thread;
  • other possible uses are also possible


Features of the 362522 Non-rotating Focuser

2 x thumbscrews to hold the eyepiece
1 x thumbscrew to secure focusing position
1.25" Eyepiece holder barrel with brass compression ring
Male T-thread at top end to attach a guide camera or other accessory
Female T-thread at the bottom (on the telescope side)
Extremely light: 90g
Optical length: 53 - 63.5mm (appr. 10.5mm 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 T-adapter can be unscrewed and then it reveals a thread 31mm with 0.45mm pitch.
M31 to T-thread adapter included
Internal diameter at telescope side: 27.5mm

: *
: *
: *
 
TS 2" Extension Tube with 35mm Optical Length
£26.90
Primaluce Lab 495mm PLUS Losmandy Plate - Dovetail Bar - NEW VERSION
£135.00
There have been no reviews

Only those who bought this product are allowed to add review
If you've already bought this product, please sign in and add your own review!
 
The website uses cookies to allow us to better understand how the site is used. By continuing to use this site, you consent to this policy. Click to learn more.