Okay, firstly these last 3 months here in NE Scotland have been appalling for imaging, mostly cloudy (but little rain!). Any opportunities are to be treasured - and the only real two occasions have been with poor seeing. (Afternoons have offered slightly more chances, but by then the air is really too turbulent).
I have used a ZWO 174MM-C successfully with a tilter - achieving interference-free imaging first time.
I have recently added an ApolloM-Max to my bag of cams, to use with a 102mm f11 'scope and Daystar Quark-C. UV/IR cut filter and the imaging train is straight-through.
The built-in tilter is set so one of the trio of screws is at zero position, the other two at 2mm.
I'm still getting Newton's Rings quite prominently.
May I ask other users of this camera how they have their own tilt set.
Tilt for Ha
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Re: Tilt for Ha
Im having it constantly set to 3mm. So quite a lot but then its ok with my equipment.
Triband C9.25
H-a: Quark Chromosphere with BF mod
WL: Antlia 500nm/ 3nm, 393 nm/ 3nm
Ca-K: homebrew (includes 2x 1.5A filters, thanks Apollo)
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H-a: Quark Chromosphere with BF mod
WL: Antlia 500nm/ 3nm, 393 nm/ 3nm
Ca-K: homebrew (includes 2x 1.5A filters, thanks Apollo)
Player One Apollo Max + Mars MII
Barlows:
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Re: Tilt for Ha
Thanks Dennis, that's 3mm on the two screws?
Call me Geoff.
I do what I do because I want to, and because I can....
Doesn't mean I know what I'm doing, though!
I do what I do because I want to, and because I can....
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Re: Tilt for Ha
I measured a maximum gap of 3mm between the plates.
Triband C9.25
H-a: Quark Chromosphere with BF mod
WL: Antlia 500nm/ 3nm, 393 nm/ 3nm
Ca-K: homebrew (includes 2x 1.5A filters, thanks Apollo)
Player One Apollo Max + Mars MII
Barlows:
-2x Gerd Düring 2.7x
-2x TMB 1.8x
H-a: Quark Chromosphere with BF mod
WL: Antlia 500nm/ 3nm, 393 nm/ 3nm
Ca-K: homebrew (includes 2x 1.5A filters, thanks Apollo)
Player One Apollo Max + Mars MII
Barlows:
-2x Gerd Düring 2.7x
-2x TMB 1.8x
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Re: Tilt for Ha
Also make sure to have the longer side of the chip as tilt axis, not the shorter one. More effective.
Triband C9.25
H-a: Quark Chromosphere with BF mod
WL: Antlia 500nm/ 3nm, 393 nm/ 3nm
Ca-K: homebrew (includes 2x 1.5A filters, thanks Apollo)
Player One Apollo Max + Mars MII
Barlows:
-2x Gerd Düring 2.7x
-2x TMB 1.8x
H-a: Quark Chromosphere with BF mod
WL: Antlia 500nm/ 3nm, 393 nm/ 3nm
Ca-K: homebrew (includes 2x 1.5A filters, thanks Apollo)
Player One Apollo Max + Mars MII
Barlows:
-2x Gerd Düring 2.7x
-2x TMB 1.8x
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Re: Tilt for Ha
Thanks Dennis - I'll check.
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Meanwhile the clouds are stubborn once again!
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Meanwhile the clouds are stubborn once again!
Call me Geoff.
I do what I do because I want to, and because I can....
Doesn't mean I know what I'm doing, though!
I do what I do because I want to, and because I can....
Doesn't mean I know what I'm doing, though!
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Re: Tilt for Ha
Thanks - I had no problem with my ASi 174 Cool and the ZWO tilt.
Only with the ApolloM.
Cloud still annoyingly stubborn to check.
Only with the ApolloM.
Cloud still annoyingly stubborn to check.
Call me Geoff.
I do what I do because I want to, and because I can....
Doesn't mean I know what I'm doing, though!
I do what I do because I want to, and because I can....
Doesn't mean I know what I'm doing, though!
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Re: Tilt for Ha
Indeed, the Newton rings are very prominent with this camera. This is the first time I've seen Newton rings with such a contrast.
On mine, I had to introduce a tilt of 1.6 mm. In other words I've a gap of 1.6 mm near one screw, and minimum gap on the two oppositive screws.
It looks OK like this.
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/