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Easy mounting - no need to dismount the focuser - reduction is adjustable.

A 1:10 micro focuser has been well proven in practical observing and astrophotography, it allows fine focusing. The 1:10 Micro Reduction Unit from Lacerta can be easily retrofitted to many Crayford focusers. The retrofit is done with the focuser mounted - disassembly is not necessary. The gear reduction does not fit on rack and pinion focusers.

The 1:10 reduction fits to ...
... all focusers with four base screws in 33 mm x 22 mm spacing
... Skywatcher ED refractors, Newtons, Dobsons, Black Line telescopes
... Vixen ED 80 and ED 100
... Orion USA ED refractors, Newtons, Dobsons
... and many others.

Customer Reviews

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Mike G
Skywatcher 200MM Dob With Lacerta Focuser Upgrade

I purchased this Lacerta dual speed focuser for my 200MM Skywatcher Dob for fine tuning the images. I ordered my Lacerta focuser from David Astro , quick shipping and within 24 hours I had the focuser. The focuser feels very solid and ultra smooth, and it takes 20-30 minutes to install the focuser, and then fine tune it. and looks like factory installed focuser on my Skywatcher telescope. I have used heavy eyepieces like 13 Ethos -1.3lb , 35 Panoptic 1.5lb holds with ease and zero shift. I am recommending this focuser if you were wondering about it, get it. and when fine tuning the stars Wow brings it in superbly. Clear Skies

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