Anyone know secondary sizes on SW Quattro Scopes.

[Northernlight]

Hi All,

Does anyone know the secondary mirror sizes on the Quattro 10s & 12s models.

Cheers,

Rich.

[Space Hopper]

Not absolutely sure, but i have a similar OO 12"F4

The secondary on that is 75mm

On the smaller 10" that comes with a 63mm secondary.

The SW Quattros may not be EXACTLY the same, but the above will give you a ballpark idea.

HTH

[lenscap]

According to the SW site the secondary diameters for the Quattro's are;

   10"  -  89mm

   12" -  102mm

https://www.skywatcherusa.com/products/sky-watcher-quattro-250p-imaging-newtonian-10-254-mm

https://www.skywatcherusa.com/products/sky-watcher-quattro-300p-imaging-newtonian-12-305-mm?_pos=2&_sid=bdb64ae11&_ss=r

They don't seem to distinguish between the Steel & Carbon Fibre versions.

[Northernlight]

Tha is lenscap, I missed the specification button when I looked.

Holy Crap - 102mm on the 12" Quattro, that's crazy big. That sucker will attract a lot of dew. I'm guessing it's too support a full frame camera.

For me, I just want a secondary to fully illuminate my Qsi683 (Kaf8300) chip. Obviously the quattro 12s will, but also looking at possibly getting a Orion Optics VX10 or VX12 and they have much smaller secondary mirrors 

Rich.

 

[Space Hopper]

Sorry, i was way off the mark.

Imaging specific reflectors = big secondarys to fully illuminate the various sized sensors out there. 

I hadn't factored that in. 😳

[dph1nm]

On 06/11/2019 at 23:08, Northernlight said:

That sucker will attract a lot of dew.

I can confirm it does!!

NigelM

[Northernlight]

Nigel do you just use a dew shield or do you have a heater on the secondary.

Edited November 8, 2019 by Northernlight
spelling error

[dph1nm]

On 08/11/2019 at 16:39, Northernlight said:

Nigel do you just use a dew shield or do you have a heater on the secondary.

A hairdryer (I am in a mains powered observatory)! Which usually works, although you do have to wait a few mins for the focus to settle back down.

NigelM