What would cause a brand new C14A OTA to come to focus inside the tube? It has the edgehd back casting does that mean the extra knobs on the back are a mirror lock or shipping lock?

I hate to show my ignorance but I am not sure what you are referring to when you say "come to focus inside the tube".

As far as the two knobs goes though if it is an Edge then the two knobs are mirror locks.? You would loosen them,? focus,? then snuggle them up again.? This must be done every time you focus if you are using g the stock screw focuser.

Gary

Carpe Noctem

Sent From My Spaceship via Nexus 5

开云体育

?

I hate to show my ignorance but I am not sure what you are referring to when you say "come to focus inside the tube".

The focal plane of the scope is too close to the front of the telescope. In fact it is welll inside the telescope.

As far as the two knobs goes though if it is an Edge then the two knobs are mirror locks.? You would loosen them,? focus,? then snuggle them up again.? This must be done every time you focus if you are using g the stock screw focuser.

No it's not an edge, it's a C14A. The two knobs are shipping screws and have to be removed completely. Why Celestron's manual??? doesn't mention this,I can't imagine.

Gary

Carpe Noctem

Sent From My Spaceship via Nexus 5

On Jul 13, 2015 20:42, "Kerry Koppert kkoppert@... [C14_EdgeHD]" <C14_EdgeHD@...> wrote:

?

What would cause a brand new C14A OTA to come to focus inside the tube?
It has the edgehd back casting does that mean the extra knobs on the
back are a mirror lock or shipping lock?

开云体育

?

yes. you need to remove the shipping locks

Thank you sir. You should get a job writing manuals for Celestron.

On Mon, Jul 13, 2015 at 9:44 PM, Gary Jarrette garyjarrette@... [C14_EdgeHD] <C14_EdgeHD@...> wrote:

?

I hate to show my ignorance but I am not sure what you are referring to when you say "come to focus inside the tube".

As far as the two knobs goes though if it is an Edge then the two knobs are mirror locks.? You would loosen them,? focus,? then snuggle them up again.? This must be done every time you focus if you are using g the stock screw focuser.

Gary

Carpe Noctem

Sent From My Spaceship via Nexus 5

On Jul 13, 2015 20:42, "Kerry Koppert kkoppert@... [C14_EdgeHD]" <C14_EdgeHD@...> wrote:

?

What would cause a brand new C14A OTA to come to focus inside the tube?
It has the edgehd back casting does that mean the extra knobs on the
back are a mirror lock or shipping lock?

This has been my single biggest complaint of Celestron so far; critical
items not appearing in the C14 user manual. The hex shipping screws are at
the top of the list. Without first removing those screws, you can ruin your
primary if you try to wrench the focus knob beyond its resistance. In April
spent at least an hour fretting about it over my new C14 EdgeHD, then
desperately ran to CN for data.

There, 1 or 2 helpful souls on page 3 or 4 of a discussion had answered the
question last year for another member.

Anyway, for your apparent focus issue you should call Celestron Tech
Support.

[image: Inline image 1]

On Tue, Jul 14, 2015 at 1:42 AM, Kerry Koppert kkoppert@...
[C14_EdgeHD] <C14_EdgeHD@...> wrote:

On 14/07/2015 5:15 p.m., Benoit Schillings benoit.schillings@...
[C14_EdgeHD] wrote:


yes. you need to remove the shipping locks


Thank you sir. You should get a job writing manuals for Celestron.




On Mon, Jul 13, 2015 at 9:44 PM, Gary Jarrette garyjarrette@...
[C14_EdgeHD] <C14_EdgeHD@...> wrote:

I hate to show my ignorance but I am not sure what you are referring to
when you say "come to focus inside the tube".

As far as the two knobs goes though if it is an Edge then the two knobs
are mirror locks. You would loosen them, focus, then snuggle them up
again. This must be done every time you focus if you are using g the stock
screw focuser.

Gary

Carpe Noctem

Sent From My Spaceship via Nexus 5
On Jul 13, 2015 20:42, "Kerry Koppert kkoppert@... [C14_EdgeHD]"
<C14_EdgeHD@...> wrote:

What would cause a brand new C14A OTA to come to focus inside the tube?
It has the edgehd back casting does that mean the extra knobs on the
back are a mirror lock or shipping lock?

开云体育

Not sure if the C14_Edge is the same as the old C14 that used a sliding tube moving mirror focuser with a single lead screw on one lobe of a three lobed bracket for focus position. It appears that the Edge uses the same sliding tube ?moving mirror focuser with the addition of mirror locks on the two other lobes that have to be locked each time focused to prevent mirror flop. ?I believe this makes it impossible to have autofocus without mirror flop using the moving mirror focuser. Not good in Hyperstar mode which is only focused using the moving mirror focuser. The original C10 used a three lead screw arrangement for focusing. ?I have a Max Bray Mak-Cass that used the left over C10 10" primaries which were blanchard ground down to 9.5" after production stopped on the C10.