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As I said few days ago in my presentation I recently got my first scope (skywatcher 127) and over the last days I tried to test It.
Due to impossibility (temporary) to bring the scope in a decent location to make observations, I had to test it from home through a window (and under the sky of London - not the best at all). So i know that quality is of course affected.
On the other hand, I am sure that the performances are worse than I could expect also under these conditions (maybe you will correct me) and would asks for opinions to improve.
As a (mainly) planetary scope, I did not have a lot of choice: no Moon, Jupiter and Saturn out of my field of view. I pointed at Mars.
First sight, I see the very big central obstruction. I played with the knob of the focus to get rid of the big black spot in the centre of my target and here you are the issues that I would like to talk about:
1) the target became very small (ok) but still was not focus (very blurry and not a lot of clues to get atleast the shape of the planet well defined - can imagine to find any detail on it )
2) Also the colours did not convince me as no other colour than a light yellow was visible
3) Changing the eyepiece (10 instead of 25) for a magnification of 150x did not improve the situation: probably the image was even worse, more blurry with more irregular shape than before, no ability to focus at all. Differences from before : bigger (but still much smaller than expected) and very little variation in colours (I believe I saw a bit of orange).
To complete, later, I tried the scope to stars: Orion costellation was visible from my place and tried to all the stars. Although still a bit blurry (the brightest stars), I had impression of more sharp view, differentiation in colour and better shape (stars almost like a dot). Moreover, to give you a final idea, Mars (at the best focus I could get) did not appear that much bigger than Betelguese.
What do you think I can do to get better results? Could be a scope problem or some adjustments needed? Unfortunately I have no comparisons.
Thank you, Hope I was not too long 😅
I run a Youtube Channel and as part of that I like to live stream the telescope. But the problem is lack of consistency.
Orion EON 110, Meade 10" SCT
Orion Mount - Exos2-PMC. Meade Mount 'push to' alt az with clockwork drive
APT, SharpCap, PHD2, Stellarium, ASCOM Hub
Focal Lengths Orion 660mm, Guide Scopes 188mm, SCT 2500mm
Powered USB for ZWO cameras (120 and 294)
Here is what happens:
Cameras, sometimes work, sometimes don't. I am not making the mistake of trying to get APT and SharpCap to view the same camera. I used APT for the guide scope and SharpCap for the main tube and the 294. Sometimes APT will take an image, sometimes it will do live view, sometimes both, sometimes neither. It is very distracting to the stream to spend an HOUR turning the computer off and on, plugging, unplugging and replugging the cameras just to get them to image.
When I do get an image it plate solves at the NCP, but if you move away, setting the coordinates to the scope position or the object I am looking at, it doesn't consistently plate solve. Sometimes it does, sometimes not. It is completely irregular and can change within a session.
Not all three plate solving means even work, for blind solve,
ASTAP never seems to work, either in point craft or locally stand alone
PS2 and ASPS work intermittently, as above
I did download all the catalogs and they are in the default directories.
This is very frustrating and I was wondering if anyone else is having this issue or has suggestions.
I’ve just acquired the above (birthday prezzie!).
It’s a nice finder, and a definite boost from the 7x30 bundled with the scope!
However, I’m struggling to get anywhere near focus with my Pentax K50 on the end of it... anyone know why? There’s no focus mechanism to speak of, other than the objective lens’ mounting thread...
I've been dabbling for about a year and am having a lot of fun.
Nothing too serious and I don't have mega expectations but I'm starting to wonder if my images could be sharper and there's something I'm missing.
I'm attaching a picture which is the best 10% of a 3 minute video with 500d 'bolted' straight to the 200p f5 scope. No filters...no barlows...just camera straight on.
It's sharpened and saturated after the fact so in every way this is the sharpest I can get it.
I've always had the same issue whether it's with a single shot, stacks of shots, or stacked video.
Views through the eyepieces (circle-T 12.5/25) are mega sharp!
I'm happy that collimation is very good and it was a remarkably clear night tonight.
All in all I'd be pretty happy with this image (maybe over exposed a bit...) if the craters with shadows didn't make me want to rub my eyes.
Thanks in advance for any thoughts or advice!
By Padraic M
How can I set up APT so that it always connects by default to my imaging camera? I have an irritating problem that APT will regularly connect to my guide camera, even though that camera is already connected in Phd2.
I have created two APT shortcuts on the desktop, one specifying camera 2 (which usually is the guidecam) and the other specifying camera 1 (which is usually the imaging camera), but it looks like cameras 1 and 2 are not absolutely assigned to the ASI1600mm (imaging) and ASI290MC (guiding).
At APT startup, in the log it will say 'Connected to ASI1600mm' and then imediately say 'sensor size 5.6mmx3.2mm'. Then I know I have a problem as it's obviously not the 1600! I can usually sort it out by disconnecting, Shift-Connecting (to get the camera selection dialog), and selecting cameras 1 and 2 until I get the correct sensor size.
There must be a better way?