jjosefsen
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Everything posted by jjosefsen
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Exactly!
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Possible future diy secondary heater if the dew shield doesn't cut it.. can do really thin wires out to the plug, and then attach it to my dew controller with that plug. It's inline with the spidervane, so shouldn't produce any additional diffraction.
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Thanks! Flats with ccdware ccdinspector?
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I've seen a video on this mod.. I will see if I can find one.. ?
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A few pictures of the scope after reassembly and of the rca plug.. Look at that beautiful black secondary mirror and assembly. ? No idea if all this makes a profound difference, but it has been fun. It feels like "my scope" now! ?
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I Will be using a 183m with a tso maxfield 0.95 cc, so probably need to cut off more than 1cm too..
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? Yeah I would hate to cut off too much! I needed to remove the secondary and focuser for flocking. But I bought a 2" concenter for secondary alignment so should be doable. That flocking really makes the tube dark!!
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It's in the last line of my post, I wanted to see how far it protrudes into the tube first.. but obviously it would be nice to do it right now so I don't have to align secondary twice!
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? Haha good one. ? Disassembly - Done Flocking - Done Install rca plug in tube for possible future heater - Todo Paint secondary - Todo Change collimation screws on secondary - Todo Reassembly - Todo Collimation - Todo And then a real test to see how it works, how much I need to chop off the focuser tube, if any. ?
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It has begun..! ? Sorry for the [removed word] post, I'm just super excited!
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Might as well get one of their delicious UNC/ONTC newts for that price..
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I am still haunted by by the ES HR CC as well.. It is a little shorter than some at around 85mm compared to the 100mm of the GPU. If I didn't worry about the length of the GPU then that woul probably be my choice.. Basically it is one of these: ES HR - More expensive, but better, especially if I am going to get a faster scope in the future, slightly longer. TS Maxfield: Cheaper, shorter meaning less problems with the 130pds focuser, should still be a decent improvement over the Baader MPCC.
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Yeah 95% sure it is going to be the 3-element maxfield CC from TS Optics. https://www.teleskop-express.de/shop/product_info.php/info/p3822_TS-Optics-2--3-element-MaxField-Newtonian-Coma-Corrector.html
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Yeah I thought as much.. Well I plan on ordering scope, collimation tools, thumbscrews for secondary and flocking material tonight. So hopefully this can be my little Xmas project. Then dewshield and CC after next payday. ?
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Imaging Challenge #21 - Comet 46P
jjosefsen replied to Grant's topic in Imaging Challenge #21 - Comet 46P (Now Closed)
I got an hour and a half last night on this thing, in very windy conditions.. But to hell with it! My first comet! ? -
Do any of you know if this adapter (10mm) has a shorter optical length than the standard 2" adapter on the scope? https://www.firstlightoptics.com/adapters/flo-compression-ring-adapter-for-skywatcher-newtonians-m54.html I have one of these for my frac, and can't say I find it much better than the usual thumbscrew version. But if it is shorter it could help with the draw tube problem..
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Ok that sounds encouraging. Maybe I will just go with a dew shield and not a heater. I plan on flocking it straight away, so wanted to do the dew heater in the same gon if necessary. Thanks for the feedback.
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I often have very high relative humidity 90+.. with my frac and a dew band it's not an issue, but it worries me with the open design of a newt. I must admit I was hoping I didn't have to cut the draw tube with the cc I'm looking at. Can anyone tell me the diameter of the stalk the secondary mirror is mounted on?
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Hi. I'm considering getting one of these bad boys (130pds) and modifying it over Christmas. I'm looking at dewheater solutions, and wondering if a glued secondary mirror heater would be preferable to a dewshield. Can any of you tell me the diameter of the secondary mirror stalk/mounting? I was considering mounting an rca plug in the top of the ota for a more permanent solution instead of having a cable dangle lose up there.
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Up and running on the Bubble Nebula, seeing is bad unfortunately.. Relative humidity is at 99% and dew heaters are running 100%.
But it is new moon and there are no skies so have to get some RGB while I can!
N.I.NA: in full swing!
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First attempt at SII, Ha, OIII image: Pelican nebula
jjosefsen replied to Tiny Small's topic in Imaging - Deep Sky
Yeah you are right actually, my bad.. But is the Halo more significant in one particular band i wonder? -
First attempt at SII, Ha, OIII image: Pelican nebula
jjosefsen replied to Tiny Small's topic in Imaging - Deep Sky
Aaah.. I think those are on the "budget'y side" and could very well be the source of those halo's, actually they might be the same as gen. 1 ZWO filters.. (Not sure though..) My guess is it would be particularly bad in the OIII master?? I just purchased a set og Baader LRGB filters + Ha + OIII and i researched it quite extensively, and alot of the cheaper filters have problems with halo's particularly in the OIII filters. -
First attempt at SII, Ha, OIII image: Pelican nebula
jjosefsen replied to Tiny Small's topic in Imaging - Deep Sky
Lovely details in that image. Can I ask what filters you were using, make and band width? -
M 31 Andromeda Galaxy, 41 hours and 27megapixel mosaic
jjosefsen replied to Grinde's topic in Imaging - Deep Sky
I'm sorry to jump on the Necro wagon here.. But holy s**t!! This is really something.. My hat is off to you! Even my non astro wife was very impressed with this, so that is saying a lot..! -
It doesn't really scare me no, I am a software developer, albeit on a Windows platform.. Lots of people already reported the same problems, and it was determined to be due to bad drivers. I will probably have another go at it later, when time permits. Kstars/Ekos looked really good..
