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120ST

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Posts posted by 120ST

  1. those are some excellent shots Olly, thanks for sharing. to give you an idea, those shots of yours are well beyond what I am wanting/expecting to do. I will be doing shots around 500mm to 900mm, and have been looking at guiding. Im trying to keep the gear down to a minimum, so I was investigating one of those self contained auto guiders that does not need a laptop/PC to use. I haven't done much research on them yet. something like this.

    http://www.celestron.com/astronomy/celestron-nexguide-autoguider.html

    I have been trying to find out if I can control / operate an auto guider with my Android Tablet (Android Galaxy Tab 7.0) so I would not have to purchase a laptop to be able to set up and control the auto guider. But I cant seem to find any info on the web except for star mapping software for Android tablets.

  2. I currently have the Orion AstroView EQ mount with a single drive motor.

    I have the Orion 120ST and a 90mm Mak-Cass. I'm NOT looking at getting another scope, what I have does fine for my needs/wants, so the load I put on the mount wont be all that much.

    I'm looking to do a little bit more astrophotography besides the moon. Noting intense or anything, just some of brighter DSO's and star clusters that don't require hours and hours of exposure time. I will be using my Canon 60D at prime focus.

    Im not really wanting a goto mount, I had them in the past but not wanting that now. Just something sturdy with good tracking. Basically I would like to manually move the scope to where I want, then turn on tracking so it tracks what i point at with a fair amount of accuracy with a good polar alignment.

    Would something like the Orion SkyView Pro do a good job for like 2 to 5 minute exposures? Or would I be better off going with something like the Orion Sirius EQ-G? Again, Im not looking to put a heavy load on the mount, no more than 16 lbs ( 8 kilo's)

    I have spent the last 5 days researching and Im pretty much confused.

    James

  3. I have been looking and looking, but I can not find a solution. I have an Orion 120 ST scope an have a regular finder scope on it. However, I want to add a laser pointer to the scope so when I manually move the EQ mount I can quickly see where im pointing to. then i can fine tune the adjustment with the 9x50 finder.

    I have a spare dove tail shoe like this

    Dovetail Base for Orion Finder Scopes | Orion Telescopes

    plus I was thinking of getting this

    Orion SkyLine Deluxe GLP-to-Telescope Bracket | Orion Telescopes

    i know i could swap them out, but i would really like to have both on the scope at the same time.

    the scope rings do have a 1/4 20 standard camera threads, and I would like to see if i can put the dovetail shoe on one of those, but i just cant think of anything that would work.

    I am open to any ideas...

    James

  4. the 20D software that came with the camera will have the ability for you to control the camera via USB port to your mac. When you take a photo the image will transfer to the PC and you can view it right away. I forgot the name of the actual utility, Canon Capture or live view....

    "Dark's" this is an exposure that is identical in exposure length to the original image. But you will cover the objective to NOT allow light into the scope.

    Technically it is preferred to take the Dark, right after the original image so the noise level will be about the same, so when you subtract the dark from the original, it will do a pretty good job at removing hot pixels and noise to make the Blacks "Darker".

    I could be wrong, but i think the Flats are a shorter exposure using a white light exposure. I have seen people place a white bucket over the main objective and place a white light source behind it. This is to capture any dust specks on the camera sensor or anywhere in the imaging path.

    Then you would use that Flat to process with the others to remove any unwanted specks.

    Like I said... i might be wrong on something so dont throw rocks at me....

    James

  5. the texas skies are much better out in West Texas. Here in Houston, there is a lot of light pollution. I can drive 2 to 4 hours west of here to get some ok dark skies. But much further west, out in Ft. Davis, the skies are extremely nice. Its about a 10 hour drive from here.

    I participated in the Texas Star Party several years ago for about 4 years at the end April/May time frame. The skies are so dark and there are so many more naked eye stars its just amazing.

    here are some of my photos from the Texas Star Party. my site is running pretty slow for some reason so please be patient

    http://www.james-benton.com/Astro/TSP/

    James

  6. THANKS every one...... my scope just arrived a short while ago and i just finished putting it all together.....so far today the sky is clear... i hope it stays that way so i can check out the moon tonight and have first light with the scope

    James

  7. Hi all, I have been looking and looking (searched the forums here as well) but cant find a case for my new scope.

    its an Orion AstroView 120ST Refractor. I dont want a soft side padded case, Im looking for a hard case, and cant find a thing for this. I did read on another forum that the case for the Orion St 80 ED would work, but that is discontinued.

    As usual, im not looking to spend a lot of money, may be $120 USD (90 Eu, 117 CN)

    I hit all the popular telescope sites I know of. Any Ideas

    James

  8. ahh... guess i could have said that in the first place.... lol

    Right now I have an Orion Astroview 120ST being delivered. It should be here tomorrow.

    I have had the following

    Meade LX-90

    Meade LXD75 AR5

    Meade LX200 (OTA only) used on the above LXD75 mount.

    I have changed equipment many times and just finished selling most all my gear to change directions one more time.

    I really like wide field views and astrophotography, so I got the 120 st EQ to get some nice wide field views and will swap the scope out for the camera to take some long exposure wide field shots.

    James

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