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Re: Thread pitch..


 

Derek here's what i'm thinking

with the cmos cameras you have, you can employ more?of a planetary approach to imaging DSOs and not sweat the guiding.?

just make sure to nail your polar alignment (although i'm a longtime polemaster user, i've come to really like the polar assist in sharpcap 3.2 and it's super inexpensive too), and shoot maybe 30 second exposures. you can go as low as 15 secs.?

that way guiding will be less of or no issue for you. i'm a little concerned you are headed down a guiding path that is already pretty rough, and it sounds like it's going to get rougher :)

the major downside is you just end up with a ton of data. I've seen folks doing these short exposures on faint objects and when done right it's really spectacular

just a thought....


Brian

On Sat, Jan 4, 2020 at 8:58 PM Derek C Breit <breit_ideas@...> wrote:

Previously I have been doing planets with the ASI178 OSC and IR band with the ASI120 Mono on the 130mm Raptor.. I bought the QHY178M Cool for various single band planetary imaging and higher resolution..

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This is where I am heading..

Imaging scope..

130mm Raptor (f/7=910mm) w/ an ASI 178 OSC or the new QHY178 Cool Mono.. Both are 2.4um Pixels.. Around 0.5¡± per pixel..

Guide Scope..

80mm Nighthawk (f/6=480mm) w/ an ASI 120 Mono w/ 3.75um Pixels.. Around 1.6¡± per pixel..

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I may Barlow the guidescope, but not right off the bat as I know I am asking a lot A) as a beginner, B) with a separate guidescope, and C) at these image scales, but hope springs eternal!

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Derek

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From: [email protected] [mailto:[email protected]] On Behalf Of Brian Valente
Sent: Saturday, January 04, 2020 7:04 PM
To: [email protected]
Subject: Re: [Losmandy_users_io] Thread pitch..

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Derek with which camera are you doing imaging now?

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Brian?



Brian Valente
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