WO Megrez 90mm f/6.2 APO decollimated

[sabin_fota]

Hi guys,

any idea how do I solve this problem?

any suggestions would be welcome

I have problems and with orthogonality of sensor, but here I only wanna solve collimation of my refractor

thanks!

[Coco]

Check for tilt first otherwise send it to Telescope House

Steve Collingwood is a magician.. and not expensive..

Steve Collingwood FRAS

Service Department

Broadhurst Clarkson & Fuller Ltd / Telescope House

[sabin_fota]

After an closer inspection I guess that this refractor is not collimable, the so called collimation problems came from an bad focuser so I will change this part.

Thanks!

[ollypenrice]

WO have made the most atrocious focusers in history so this is the likely culprit.

Olly

[ian_bird]

Not so sure Olly. I have a WO 98 with a Feathertouch focuser. It has collimation issues!

Terry at SX has collimated the camera - and even without a Field Flattener it still looks like Warp Speed in one of the corners!

But I do agree - WO Focusers suck. Glad I don't have one.

Cheers

Ian

[sabin_fota]

Can you sugest me an third part focuser for this scope?

[Coco]

WO have made the most atrocious focusers in history so this is the likely culprit.

Olly

Indeed and they are now boasting the new refractors have their best focuser yet.

Quote WO

"This is the best R&P focuser we ever built since 2001!"

https://www.facebook...?ref=ts&fref=ts

[sabin_fota]

Well I will buy an Baader Steeltrac on 2"

I think is gonna do an better job than DDG

[sabin_fota]

the steel track is not good for this scope, it has no adaptor to atach on tube so I have to move on

I saw an Moonlite model who has and adaptor for this scope

[Donkeiller]

A Megrez 90 with a focuser problem. Now there'a surprise!

[sabin_fota]

well guys I did open the focuser and the barings were blown, so I contact William Optics and they were very nice to send me an new set of bearings. I pay only for postal taxes, and now everything is like before

[sabin_fota]

Anyway they said to me that I don't have to collimate the focuser. I think that 6% tilt is that I have to tight more every screw. I'm pleased by this result.

At this image I used TeleVue TRF-2008 reducer/corrector not WO reducer/corrector.