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Old 24-07-2016, 08:53 AM
sharptrack2 (Kevin)
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sharptrack2 is offline
Join Date: Oct 2015
Posts: 331
Originally Posted by ChrisV View Post

Hopefully you have an adaptor for the ASI034 to attach to these scopes. The problem is that this camera is a 1/4" CCD so its like using a ~6mm eyepiece. I would start with either the 130mm (a few people use this size reflector on a goto mount) or maybe the 70mm refractor. Then you'll have the lowest mag, largest FOV, and fastest image. You will find the C8 very difficult. Its better if you can eventually get in some focal reduction (and no barlows), we can talk about that later. It will also be slow going without a goto mount.
Yes I have a 1.25" nose piece.

I've been studying photography in parallel to get my head around the relationship between FoV as it relates to aperture, focal length, and CCD size. Not difficult to understand, just a challenge for me to put it all together. You'd think an electrical engineer who specialises in RF would not have a problem... go figure!

The mount was tracking, just poorly, I have yet to successfully polar align so I always have some drift in declination, some nights worse than others. I didn't have the HEQ5 when I first used the camera.

Originally Posted by ChrisV View Post
Forget about registax, use sharpcap. Then you can stack images while viewing and bring those images alive. Download it and give it a run during day to get used to it. As you have a ZWO camera sharpcap will let you control gain/exposure etc. Charles Copeland has a great youtube intro to it
I started out just trying out the camera to see what I was up against. I tried using the stacking feature in SharpCap but it complained and I gave up. Then I found the tutorial that Mike Salway put together to process a single image from a video and I tried to follow that and had alignment issues. I'll check out the YouTube link, thanks!

Originally Posted by ChrisV View Post
I don't know your camera as I have the ASI224. But give it a bit of gain (~300) and some 5 - 15s exposures and see what you get. Start with some globular clusters. If there's ever an observing night up the coast I could come up (I'm near Hornsby so not that far away). I'll bring my gear, and you can try my camera/reducers etc.
I was able to get some reasonably exposed videos of Saturn, but seeing was pretty mediocre, add in the tracking error and you get a bit of a mess. But I can show them off when people come over for BBQ's . It would be great to meet you, I'm slowly expanding my circle in the forum whenever possible. If you follow the NSW informal Astro Camping trips and the NSW Central Coast Casual Observing threads, you'll likely find me.

again for all the advice and links.
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