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View Full Version here: : Helical Focuser- source please


mental4astro
27-10-2010, 04:30 PM
Hi all,

I'm after a helical focuser for a new project. I've got one source for a 2" helical but I'm wanting to know of other sources.

The one I've sourced is inexpensive and works really, really well. Finding another of similar price and quality might be asking alot, but even a 1.25" helical would be a help.

Here's the one I've got:

http://www.1800destiny.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=1D&Product_Code=FOCH

Thanks in advance,

Mental.

anj026
27-10-2010, 04:54 PM
Hi

This brand is well known though I haven't tried them myself.

http://www.kineoptics.com/index.html

Andy

mercedes_sl1970
27-10-2010, 07:19 PM
I have one of the kineoptics focusers and think it is terrific.

Andrew

qld
27-10-2010, 08:00 PM
try peter reid at SDM he has the stellarview one or deal direct with Stellarview in the states good little unit

Merlin66
27-10-2010, 08:11 PM
I use the Baader microfocuser #2458125 on the spectroscope. I also have a Borg #4317.
They both suffer from the same problem. For a normal eyepiece they are OK; for a camera they're no good. Any offset weight distribution (ie DSLR etc) causes them to rotate and change focus!!!
The answer is to drill and tap a M4 thread in the body and use a M4 nylon screw as a friction stop.

GrahamL
27-10-2010, 09:23 PM
I can't fault mine , its such a simple example of a crayford design
yet its really light and fine focusess as well or better than many of its
competiters.

mental4astro
31-10-2010, 11:24 PM
Many thanks for these suggestions. Greatly appreciated.

Mental.

mental4astro
23-02-2011, 11:37 AM
I thought I'd update my search for an helical focuser. I settled on this one from Destiny in the U.S. who also make curved spiders and other ATM gear:

http://www.1800destiny.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=1D&Product_Code=FOCH

It is buttery smooth and has an amazing 2" drawtube travel.

I got two of them, freighted to me all up for AU$113.

dannat
23-02-2011, 11:46 AM
Dobstuff also stock this focuser and a few other bits for the ATM spiders etc