Multiple Questions - ZWO ASI 1600MM-C

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rockstarbill
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Multiple Questions - ZWO ASI 1600MM-C

Post by rockstarbill » Fri Aug 12, 2016 7:10 pm

Hello all, Sam;

I am looking at this camera based on all of the high quality feedback it has received. I am curious about a few things though:

1. Electronic Filter Wheel -- What is the rough ETA on the 7-8 position wheel? While the 5 position wheel would be workable, it would be nice to have more slots for Narrowband filters.

2. Filter Kit -- I like that there are filters optimized for the 1600, but I would like to know when Narrowband filters will be available and which filters will ZWO produce? Oiii, Ha, Sii, etc.? Also are these filters parfocal or will I need to focus inbetween? I do not have an autofocuser at this time.

3. I plan to use the Camera mainly with a TOA-130 refractor. At native focal length without my reducer on it, I am not concerned with any vignetting however with the reducer the scope would be about F5.77. I know that the filters custom made for the 1600 work up to F5 without vignetting, but I would like to confirm the end result of using these filters with my refractor and its reducer.

That is it for now. Looking forward to hearing more about this camera and the upcoming accessories.

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Sam
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Re: Multiple Questions - ZWO ASI 1600MM-C

Post by Sam » Mon Aug 15, 2016 7:36 am

I think the big EFW and narrow banding filters need to wait end of this year
the thickness is very close each other, so they are nearly parfocal
but different wavelength and focal ratio still have little different focus plane

I am sure there is no vignetting for F5.77 scope
ZWO Founder
Location:lon=120.6 lat=31.3
SuZhou China

rockstarbill
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Joined: Fri Aug 12, 2016 6:49 pm

Re: Multiple Questions - ZWO ASI 1600MM-C

Post by rockstarbill » Fri Aug 19, 2016 8:08 am

Sam wrote:I think the big EFW and narrow banding filters need to wait end of this year
the thickness is very close each other, so they are nearly parfocal
but different wavelength and focal ratio still have little different focus plane

I am sure there is no vignetting for F5.77 scope
Hi Sam,

Just finished first light with the ASI 1600MM-C Kit, and the filters do show slight vignetting on my Takahashi Refractor. Any idea what may be causing this or how to fix it? I have attached a picture:
M31_20sec_2x2_L_frame2.jpg
Here is a link to a FITS file as well:

https://1drv.ms/u/s!AtqRof7LftCbg4IXL60FkNfUAppv9Q

rockstarbill
Posts: 21
Joined: Fri Aug 12, 2016 6:49 pm

Re: Multiple Questions - ZWO ASI 1600MM-C

Post by rockstarbill » Sat Aug 20, 2016 1:23 am

Problem solved on Cloudy Nights, link to the thread here:

http://www.cloudynights.com/topic/54736 ... try7386635

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Sam
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Re: Multiple Questions - ZWO ASI 1600MM-C

Post by Sam » Fri Aug 26, 2016 3:26 am

our manual will come soon
sorry
ZWO Founder
Location:lon=120.6 lat=31.3
SuZhou China

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