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I use the Celestron AVX mount and I also use Astrophotography Tool when imaging.
When I start my imaging session I will undertake a two star alignment then move to my target and THEN platesolve to ensure I have the object centred.
My question is do I need to bother with two star alignment (or any other Celestron alignment for that matter)?
My thought would be to Polar align then take a shot of Polaris and plate solve this, sync the result to the mount then “Goto” from there. The only issue I have is when you switch the mount on and enter time/date etc it asks you to do a star alignment so how do I ignore this or do I do just that, ignore it!
Sorry for the rambling question.
By LR Watanabe
Okay, this is yet to happen, but in one year or so, I'll be fortunate enough to be in the position of being able to spend a whopping 1200$ on one telescope/mount and all that [removed word].
Like a narrowband filter narrows the light going through the eyepiece, I've narrowed it down to either getting something of your recommendations OR a Sky Watcher 10" Flextube Dobsonian. Since, by that time, I'll already have a HEQ5 and a 150 PDS that'll be used for taking Astrophotos, I thought I might as well get something for visual observations of mostly galaxies (and sometimes nebulae), too. Dobsonians are the best as they offer the most aperture, which is what I've heard from at least 1000 beginner-aimed websites like "What telescope should you choose?" In the end, it all boils down to aperture for DSO visual astronomy, and so my heart is set upon a good Dob under 1200$– a Sky Watcher 10" Flextube.
What do you think of this? A 10" flextube Dob by SW, a company known for making quality products (and some rubbish ones somtimes, too)?
I have just joined and have been looking around, and putting in various searches to find the answer to my question(s).
I have already found some valuable information, but i can't find a specific answer to a question i have relating to exposure times.
I have shot the milky way several times before, from a tripod and a wide angle lens. I am aware of and understand the "500 rule" and that worked fine for me at first when i was shooting with my Canon 6D Mark II. When i moved over to the Sony A7III i noticed significant trailing using the same rule and that led me to the NPF rule (Via the photopills app incase people dot know).
I am heading back to Tenerife once again in about 6 weeks time and want to buy a star tracker so i can get some really detailed images.
I have done a fair bit of research and in principle, the whole thing doesn't seem to be too daunting or difficult.
I have purchased the Polar Scope Align Pro app so i can align Polaris as accurately as possible, i will practise putting the unit together and familiarising myself with the different parts etc, but it is the exposure times that i do not understand.
My best glass is the Carl Ziess 50mm F/1.4 Planar, the 18mm F/2.8 Batis, the Sigma 35mm F/1.4 Art & the IRIX 15mm F/2.4 Blackstone.
I currently do not own, nor have i ever used a tracker, and I cannot find any information relating to which aperture, ISO and Shutter length any of these focal lengths should or could be shot at.
Is there anything similar to the 500 rule or NPF rule that relates to using a tracker with varied focal lengths? or is it just a case of stepping the lens down for sharpness and then trial and error?
Thanks in advance,
Hello there! I'd like to start off by saying that I'm completely new at this so please don't get mad if I seem ignorant or don't know things. I recently came across a recommendation to go stargazing with night vision and that seemed like a really cool experience so that's why I'm here now. I wanted to ask whether it's possible to do that while spending less than $100? Obviously since I'm only getting into stargazing I wouldn't need anything too amazing, but I'm wondering whether it'd be very bad with equipment for under $100 and would it instead be better to find someone to lend from. If it is indeed possible to achieve something fairly decent for a beginner for under $100, what would be your recommendations? Thank you!