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Everything posted by tooth_dr
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A small gap in the clouds last night, 30mins on M81 M82, seeing was pretty bad last night. Quick calibration and stack in APP: Edited to add: havent sorted the spacing yet, and this is pretty much the FOV at 1200mm (slight edge crop)
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Baader Clicklock 2" with M56 Thread
tooth_dr replied to Jiggy 67's topic in Discussions - Scopes / Whole setups
The larger part screws off and the clicklock screws on. The thinner black ring can be left on and tightened up against the clicklock. -
The Rosette Nebula - at last an opportunity to get some data!
tooth_dr replied to steppenwolf's topic in Imaging - Deep Sky
Really great detail Steve. The colour is actually very pleasing too. -
I live just a few miles from an IDA accredited dark sky park, but I spend most of my time in the back garden as it's quite reasonable.
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Impressive M51 Peter! I had a quick google of the L-500 mount - impressive!
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Fantastic Russ, really pleased all is working well.
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How to mount a camera lens + astro cam?
tooth_dr replied to dannybgoode's topic in Discussions - Cameras
For me 3d printing has opened up ways of rigidly holding camera/FW/lens and attaching to a dovetail. I was able to incorporate a microfocuser in the design too. I did use guide rings (as posted above) to good success too. -
I've a 0.3 and 0.5mm spacer, can try those.
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Thanks for that analysis. It's already at about +1.5mm over the recommended 58mm, I have a few shims, will try another bit.
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I know! 2kg+
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Thanks Ciaran. Actually that is a crop of the centre, binned 1x1, and not downscaled. I did consider binning during capture or afterwards though, but wanted to try it out full size. Guiding was sitting around 0.5"/px, using an OAG. The full image has some nice detail in the small background galaxies. Trying to work out the spacing - does it need some more or less spacing?
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Yes I did buy it. Like you, I too replaced my KAF-8300, and am planning on using on a 180mm lens for a widefield camera. I've noticed a bit of tilt in the bottom corner, so my connection between the camera lens and camera must need a bit of adjustment. It's just getting the clear skies to experiment. All my KAF-8300 had 2-4 columns, normal, and calibrate out ok. I got one single 900s subs so far.
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Very nice. Recently bought a 16200 myself, but have yet to get a proper first light from it.
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Nice detail in the crop Rodd and certainly the stars are better. Could you post the Oiii and Ha data for a look, dont often see strong Oiii signal!
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Good video Chris. I image with a 250px, the old blue tube one, I guess very similar to the 200p. I fitted a Baader clicklock, use a MPCC and can still get focus with it - just - a few mm spare. I havent noticed an issue with the secondary mirror size and lack of illumination. So my answer to the question would be no lol
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SharpStar 20032 and Canon 6D mk2 artefact
tooth_dr replied to CrispyCod's topic in Imaging - Discussion
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SharpStar 20032 and Canon 6D mk2 artefact
tooth_dr replied to CrispyCod's topic in Imaging - Discussion
I'll get back to your PM directly when I get home. I didnt pursue the issue, but it is indeed due to the position where there mirror folds down during the exposure. Mine wasnt as bad as yours though, and presented as a band along the bottom of the image only. I am using a mono APS-C sensor with the scope now instead of the DSLR -
SharpStar 20032 and Canon 6D mk2 artefact
tooth_dr replied to CrispyCod's topic in Imaging - Discussion
It could be reflections of the mirror box from the DSLR, with the sensor set far into the body. It’s a problem with my Nikon D800E FF DSLR on my 180mm F2.8 newt, and is difficult/impossible to correct fully with flats. I suggest that it wouldn’t occur with a dedicated FF astro camera as there is no mirror box and the sensor is usually much closer to the front of the camera -
Superb, detail and colour showing up well. Great processing for such short integration time too.
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Really excellent job! Everything seems to be working well!
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I didnt realise this, but that makes sense. I just wasnt able to work that one out myself. I usually open a new instance then click 'File / New Sequence with Profile' and that would apply those settings stored in the equipment profile. I'm happy with SGPro the version 3.2.x I have but everything is just so much more complicated with 2 or even three cameras running so I'm looking for an easy life.