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Everything posted by Chris
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New ASI462mc Arrived - Discussion, Comparison & First Light
Chris replied to Chris's topic in Discussions - Cameras
Hey Neil, it sounds like I'd better check out Chris's video, thanks for that Maybe you can't just de bayer in PIPP, AutoStakkert etc like with other cams? With no filter I saw grid lines when taking AVI footage in RAW8 but using RGB24 this seemed to Debayer the footage automatically, but then left the image quite monochrome. I was impressed with the detail though. Sounds like I've got a lot to get my head around with this camera lol I'm guessing the issue might be that if you de-bayer for the grid pattern, it would mess up things above 850nm where effectively there isn't a Bayer matrix to be de-bayered........ if you get what I'm saying. -
New ASI462mc Arrived - Discussion, Comparison & First Light
Chris replied to Chris's topic in Discussions - Cameras
Thinking about testing it, I'm curious. The 642 passes wavelengths from 642nm to 840nm and the 462 cam peaks at around 830 so it should still be super sensitive using the 642 filter. The 642 seems quite versatile because it would enhance daytime Lunar and generally improve contrast....And I got a glimpse at the 462's deep sky capability when I briefly pointed it at the core of Orion, and apparently the Pro planet 642 makes for a good budget Ha filter. What were your thoughts Neil? -
New ASI462mc Arrived - Discussion, Comparison & First Light
Chris replied to Chris's topic in Discussions - Cameras
It's a tough one, I mean I'm sure both the 642 and 742 give good results. Looking at the QE graph, the 462mc seems to peak around 830nm so it should still be very sensitive with the 642. Hmm? I may have to buy both and do some testing. -
New ASI462mc Arrived - Discussion, Comparison & First Light
Chris replied to Chris's topic in Discussions - Cameras
Ah thanks Dave! Thanks for the tip. I was looking at the Pro Planet filters and the 642 did look quite versatile. Good for H alpha as well according to the blurb -
New ASI462mc Arrived - Discussion, Comparison & First Light
Chris replied to Chris's topic in Discussions - Cameras
Thanks Jeremy, glad you liked it -
New ASI462mc Arrived - Discussion, Comparison & First Light
Chris replied to Chris's topic in Discussions - Cameras
There is that Neil, I'm glad it's got relatively fine pixels at 2.9um which helps with the resolution part at least -
After an initial comparison with it's predecessor the ASI 290mc (Not the 1290 as I keep calling it), I go for first light using the ASI462mc and the Heritage 150p. Trying to capture the ISS during 90% cloud with no experience turned out to be all too much, but I did see an interesting appearance on the Moon thanks to how the sun was shining on a crater!
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This was a first light imaging test for my new 200p. Also I picked up a couple of very cheap DLSR's because DLSR's have the sensor set back 44mm and I wanted to fully test the focus range for the 200p. I also bought the Baader mk3 coma corrector and did some before and after corner tests with that, and genuinely had fun trying to image in high winds with a telescope that has quite a lot of surface area! lol I had lots of fun with this one and probably spent a bit too much money as I've also bought some goodies for guiding, but you only live once hey
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lol Oh it was loved, just from afar! It's hard to blame such a nice chap as Jeremy, so I'll just congratulate your self on an excellent purchase instead! I trust you'll tell us all about it once you've used it in anger, although I think it will be more like joy!
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Thanks Rob. The Skyliner has a different focal length, I think it's an f/6 so 1200mm instead of 1000mm, so it may behave a bit different to the 200p f/5 In terms of reaching focus, I'm not sure? A lower profile focuser will definitely help, and pushing the primary mirror up the tube a few mm with the primary mirror adjustment screws. Also once you have enough focus travel a focus mask will really help you nail the focus I need to do a quick vid on that at some point.
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lol Thanks I really dropped the ball with that one hey I actually remember your SGL thread about the diff spikes! It was really memorable partly because you went to great lengths to try and solve the issue! I'm glad you finally got the bottom of it When I imaged with a 150p I can't say I noticed any unusual artefacts, but I still have an ancient image of the Rossette nebula circa 2012 taken with a 150p and Modded Canon 350D, so I'll dig that out and take a look. It could be that it's a specific thing to the 200p? I'll definitely investigate the stars produced by my 200p and see what the deal is. I think that would be interesting.
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Yeah I agree dual speed is definitely a nice have, I've witnessed this myself on the 130pds and 150pds. I think the single speed can be tinkered with to make it a bit smoother, but either a larger focus wheel or one of these might be better if not eventually upgrading the focuser: https://www.firstlightoptics.com/skywatcher-focusers/skywatcher-auto-focuser.html
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Thanks vlaiv! Darnit! I completely forgot about the secondary being a bit larger on the PDS version, and I didn't know the thickness of the spider vane didn't effect intensity of diffraction as always thought otherwise. I know now at least, cheers! Skywatcher must make them thin purely for increased contrast then EDIT: lol relieved I got one thing right π€