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Old 17-06-2013, 04:28 PM
Nortilus (Josh)
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LX200 for astrophotography

Anyone use the meade LX200 with a wedge for astrophotography? Pros and cons?
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Old 17-06-2013, 04:56 PM
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Merlin66 (Ken)
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I used a 10" and 12" Lx200 on the orgional fork/ HD wedge/ HD tripod (cut-down) for many years - for spectroscopy.
If the OTA and forks are well balanced, and the forks are checked and dowelled for orthagonal alignment - under PHD guiding it worked very well for me.
At f10 I could keep a target star image on a 25 micron slit indefinately......
For AP the slow f10 is not suited for DSO but you'll find many excellent planetary/ lunar images taken with similar SCT's.
Even with the std x0.63 reducer (use a Celestron to make sure of the focal length!) the FOV in larger cameras will not be ideal. The Optec NextGen reducers are much better. BUT, its still an f6.3 system...good for galaxies and close ups etc and not for wide field stuff (mount a camera lens piggyback for those targets.)

I finally dumped the LX200 (limited back of cell clearance for spectroscopes) and mounted initially the 10" on a NEQ6pro....later upgraded to a C11.
HTH
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Old 17-06-2013, 06:10 PM
thunderchildobs
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You need to check the clearance you have between the scope and the base. If you want to image near the pole. With a focal reducer, adapter and ST7 I could only reach 70S.

I always stayed at the scope when imaging near 70S just in case something went wrong. A High precision point could easily crash the camera into the mount.

Brendan
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Old 17-06-2013, 06:48 PM
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dcalleja
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I use an Optec FR on my 8inch. As Ken says, you get f6.2 or so, so it's not widefield but it does work well and on the ACF version its pretty flat across the field.

Depends what you want to image. The FR gives you a midrange in my view

Dan
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Old 17-06-2013, 11:02 PM
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redbeard (Damien)
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Hi Josh,

I have the Meade 10" LX200GPS with a wedge and 95% use it for astrophotography. These scopes take a little to get right, but once setup well, are awesome and a lot of fun to use. You tend to learn heaps along the way as well.

I am fairly new to all of this but I have started to take a few pictures with the things I have learnt over the past couple of years. From what I have started to take, with what my friend with the same rig takes and what his friend with the classic version lx200 takes, range from ordinary, (mine), to spectacular, (my friends...).

You can check out my pics at www.redbeardpix.wordpress.com and my mates with the same rig but different cameras at www.scopepics.wordpress.com. The other guy who I don't' have a link for has even better again. A web search will also show the beautiful pix these scopes can take. Like I said, my pics are ordinary but every time I take a pic, they gets better.

PEC training and guiding is a must but the other night, I had PEC turned off, no guiding and was getting 2 min subs with round stars. Yes, bit of a fluke, but I had great polar aligning that night and didn't breath whilst next to the scope.

I use a Canon 450D unmodified and started with the 350D before that. I have no filters at this stage but use a 6.3 focal reducer most of the time and without for deeper objects.
I use a Milburn wedge and have an Orion ST80 Guide scope with a QHY5 as a guide camera. I also use a toucam for planets but want a better camera. Software wise I use Alignmaster to get polar alignment, (works fantastic for me), PHD Guide and Backyard EOS.

The rig is not too heavy for me to lift and I use the standard Meade tripod. I have bucks gears and all the Peterson addons which helps.

As for photo of south areas, I am either very very very careful at attempting fate by getting close without hitting the mount with camera whilst other finger is on the power switch in case, or, I simply use a diagonal and everything is out the way without a worry at all! Only need the diagonal for very south objects, well for me I'm in Adelaide anyway.

Once aligned by Alignmaster, I simply choose 3 stars to synch on and all good for tracking. Another must do feature is to turn on precision mode in the Meade menu. This helps by slewing to the closest star to the object you want and centering that star and synching to it. The scope then slews to the object you want and if all has been setup well, it will be in the view somewhere, just a long exposure away.

Please note, it will take many years to photograph all the possibles with this scope so in no way will one get bored or have nothing new to image.

I find this a great scope and if you look after it well, it will look after you.

Although not the best for wide fields, it is very versatile and can also be used in ALZ-AZ without the wedge if need be. Once using a wedge, there's no looking back lol.

I have never used a refractor, but from what I've seen with a good mount etc, some pretty stunning images from these rigs and if I have some spare cash, will get one as well as the Meade.

I've been lucky with spare parts being available so far, and a new hand controller goes a long way as well as repair graphite goo. However I havd made some hardware controllers as well as use the PC so less wear on the paddle.

All that being said, if you have one fine, if you don't, then get a good second hand one at a good price and there will usually be lots of extras and have lots of fun. On the other hand, if you are loaded, then go for something really cool and bypass this step, I know I would!

Let me know if there is something more specific you would like to know.

Happy snapping.

Cheers,

Damien.

a dark sky is always a help
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  #6  
Old 17-06-2013, 11:08 PM
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redbeard (Damien)
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Hi again,

Just noticed ''8" Meade ACF SCT on a Skywatcher NEQ6'' in your signature.

If that is what you are running and referring to, I have an idea that might be a better solution than the standard Meade tripod as far as tracking is involved. Not sure if it's the Pro mount or that one but Meade had a reputation for being the worst of the best mounts. Although in defence, if they are setup right, they can be great.

If the above is the case, perhaps check with others if the question is mainly a mount one.

Cheers,

D
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Old 18-06-2013, 08:22 AM
Nortilus (Josh)
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its mainly just curiousity at the moment. I do have a neq6 and a 8" ACF but at the moment I dont get alot of time to play with it and learn (mainly weather) and was thinking of getting something that would be quicker to get going...
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Old 18-06-2013, 09:26 AM
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rogerg (Roger)
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I very much enjoyed using my 12" LX200 classic for astrophotography, for about 10 years. Very capable telescopes for astrophotography. Great value for money I always though, easily research and photography capable. I also prefer the fork design over GEM.

A couple of years ago I moved my 12" OTA on to a Paramount only because of my need for more reliable and accurate automated operation.

Now I am looking to replace the OTA because of it's old SCT design with un-flat field, but that wouldn't be an issue with new ACF.
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Old 23-06-2013, 03:52 PM
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ChrisM
Sandy Ridge Observatory

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Hi Josh, I started out with an LX-90, initially Alt-Az on a tripod, and then on a home-made wedge, and occasionally attached a camera but found that there was just not enough clear space to safely manouvre the camera in the dark. It was then that I decided to upgrade to a GEM. I upgraded the scope too to an LX-200 ACF OTA, and whilst I still do mainly visual observation, the OTA is quite capable for AP, although I did replace the focuser for a crayford-style.

Chris
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  #10  
Old 23-06-2013, 06:39 PM
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BlackWidow (Mardy)
Seeing Stars

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Hi josh. Love my LX200 an are still on a learning curve. Lots of people talk about fork clearance, but it is ver dependent on what you hang off the back. I use a CCD that has a smaller profile than a DSLR'S. you can also use a rear focuser that allows for filters to be placed inside. This reduces the bulk on the back of the scope. You can also fit a Crawford style focus system on the OTA and remove the electric focuser. I am able to clear my base, but only just in most cases with my setup. For the price you can pick these setups, they are a great all rounder for imaging. Agreed not so good for widefield. I just piggyback my DSLR'S to the scope for this task. I often do both deep space and widefield at the same time.. So my telescope must be female as I have got it multitasking.


Oh and I forgot to mention that I don't have the money to purchase a bigger and better scope. LOL



Regards
Mardy
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