Re: Can I attach an Optec IFW filter wheel with TEC-140+FF?


Nov 13, 2006

 


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#11369 Nov 13, 2006

Hello Groups,



I have a TEC-140 and FF. I have a plan to photograph a DSO in a different

filters such as H-alpha and RGB shot.



Now, I'm waiting a QHY8 CCD camera (color one shot). My plan is to used

below...



TEC-140 + FF + Filter wheel + QHY8 CCD



Can I do that? I'm afraid about vignett and back focus distance. I knew the

back focus of FF is only 85 mm.



Can anyone help me to suggest this.



Thank you very much.



POP



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#11371 Nov 13, 2006

--- In tec-scopes@yahoogroups.com, "popkrab" popkrab@...> wrote: >

> Hello Groups,

>

> I have a TEC-140 and FF. I have a plan to photograph a DSO in a

different > filters such as H-alpha and RGB shot.

>

> Now, I'm waiting a QHY8 CCD camera (color one shot). My plan is to

used > below...

>

> TEC-140 + FF + Filter wheel + QHY8 CCD

>

> Can I do that? I'm afraid about vignett and back focus distance. I

knew the > back focus of FF is only 85 mm.

>

> Can anyone help me to suggest this.

>

> Thank you very much.

>

> POP



Dear Pop,

How far is the CCD chip plane from the flange? And what is the size

of the CCD chip?

Regards, Yuri


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