I haven't got use to the quark yet, smoke coming out of the scope is not a good feeling
I have just been using a UV/IR filter for rejection but I think a proper ERF would be a better choice.
Any recommendations as to brand/type
I assume that using a smaller ERF down at the diagonal will be ok as those full aperture ones are not cheap.
Quark ERF
Re: Quark ERF
Peter, would a Herschel wedge work ?
Chris
Chris
Chris Schur
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Birch Mesa Observatory, Payson Arizona
Clear Creek Canyon Observatory, Happy Jack, Arizona
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Birch Mesa Observatory, Payson Arizona
Clear Creek Canyon Observatory, Happy Jack, Arizona
- Valery
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Re: Quark ERF
External ERF is much better because it prevents the solar heat coming inside the tube.pstew wrote: I assume that using a smaller ERF down at the diagonal will be ok as those full aperture ones are not cheap.
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
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Re: Quark ERF
Hi Paul
I'm sorry to see the molten filter. Is it a 1 1/4" filter and what brand ? What scope and configuration did you use ? I'm very happy with the UV/IR filters from Beloptik
I'm sorry to see the molten filter. Is it a 1 1/4" filter and what brand ? What scope and configuration did you use ? I'm very happy with the UV/IR filters from Beloptik
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Re: Quark ERF
Hi Walter
The not very good picture is the dust cap. The Quark having a 1.25 and 2" fittings if you are not paying attention its easy to put it in a 2" diagonal without removing the cap. I would suspect the same would happen with an ERF too.
My main concern is that the UV/IR is not good enough for a 132mm scope, especially for long imaging runs.
The not very good picture is the dust cap. The Quark having a 1.25 and 2" fittings if you are not paying attention its easy to put it in a 2" diagonal without removing the cap. I would suspect the same would happen with an ERF too.
My main concern is that the UV/IR is not good enough for a 132mm scope, especially for long imaging runs.
Paul
Timaru, New Zealand
LS152Tha/B34/DSII, LS80THa/B18/DSII, LS60Tha/B12, Grasshopper3(ICX687), Chameleon 3(IMX264)
Timaru, New Zealand
LS152Tha/B34/DSII, LS80THa/B18/DSII, LS60Tha/B12, Grasshopper3(ICX687), Chameleon 3(IMX264)
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Re: Quark ERF
Hi Paul
o.k. At least for short sessions, the ERF of the QUARK holds that up (of course without plastic cap )
o.k. At least for short sessions, the ERF of the QUARK holds that up (of course without plastic cap )
Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE
from 7 am - 7 pm http://www.nanosys.ch
from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa
from 7 am - 7 pm http://www.nanosys.ch
from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa