FS: Supercharged PST with PST Mod Equipment
Posted: Fri Aug 09, 2013 5:45 pm
I've decided to sell my PST. During my time owning it, I've added a few extra pieces to it to upgrade it's capabilities in preparation for putting the etalon on a much bigger scope. Unfortunately, my interests have changed, so I don't think I'm ever going to get around to putting it all together and putting it to good use. There's a lot to pass on, so let's jump in.
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Here are all of the details on the telescope, from front to rear:
-The telescope has the newer blue objective lens, so there is no concern about the rust issues that developed on older scopes.
-The etalon has the small plastic centering ring that Mark Townley made already installed. The rationale behind this centering ring can be found in this thread: http://solarchat.natca.net/index.php/en ... mbly-video. You'll also find in that thread that I dropped and broke the original etalon from this telescope...but it has since been replaced and is as good as new.
-I upgraded the blocking filter on this scope from 5 mm to 10 mm (BF5-->BF10). This gives you four times the available viewing area. This gives you much greater flexibility on where you position the image of the sun in the field of view. So you can position the image of the Sun in whatever area will minimize any sweet spotting/sweet banding.
-All of the threaded joints on this scope have already been loosened, so you won't have to worry about using a strap wrench or any of that stuff. This is useful if you plan to mod the scope, and it's useful if you need to rotate the ERF or blocking filter to spin any internal reflections out of the visible field.
-It also comes with the carrying case that Coronado provides so that you can safely and easily carry your telescope around. The stock K20 eyepiece that comes with the scope is also included.
Images of the scope and case:
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I'm also selling a set of threaded mounts needed to complete a stage 1 and a stage 2 mod. The metal piece on the top right threads into the front of the etalon, and allows you to attach that to a larger scope. If you use the stock PST body, this would be a stage 1 mod.
The metal piece on the top left threads into the rear of the etalon, and allows you to attach it to a focuser. This would then be a stage 2 mod.
I'm also including the wood disk I made to attach this all to a Celestron 80 mm refractor scope. This may really only be useful if you have the same telescope, so it may or may not be of value.
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This is obviously a somewhat unique bundle. I paid $110 for the PST mod mounts, and BF10 diagonals cost ~$500. However, this is just for the 10 mm blocking filter, as opposed to the full diagonal. Here's my thought on pricing, broken down by item:
$450 for the scope and carrying case
$100 for the mod mounts
$250 for the BF10
This gives a total of $800 as a starting asking price. I'll have to figure out shipping with whoever is interested in buying.
I'm posting this all up here first to give you guys a crack at it. If I don't have any bites I'll throw it up on astromart later today.
Let me know if you have any questions!
------------------------
Here are all of the details on the telescope, from front to rear:
-The telescope has the newer blue objective lens, so there is no concern about the rust issues that developed on older scopes.
-The etalon has the small plastic centering ring that Mark Townley made already installed. The rationale behind this centering ring can be found in this thread: http://solarchat.natca.net/index.php/en ... mbly-video. You'll also find in that thread that I dropped and broke the original etalon from this telescope...but it has since been replaced and is as good as new.
-I upgraded the blocking filter on this scope from 5 mm to 10 mm (BF5-->BF10). This gives you four times the available viewing area. This gives you much greater flexibility on where you position the image of the sun in the field of view. So you can position the image of the Sun in whatever area will minimize any sweet spotting/sweet banding.
-All of the threaded joints on this scope have already been loosened, so you won't have to worry about using a strap wrench or any of that stuff. This is useful if you plan to mod the scope, and it's useful if you need to rotate the ERF or blocking filter to spin any internal reflections out of the visible field.
-It also comes with the carrying case that Coronado provides so that you can safely and easily carry your telescope around. The stock K20 eyepiece that comes with the scope is also included.
Images of the scope and case:
-----------------
I'm also selling a set of threaded mounts needed to complete a stage 1 and a stage 2 mod. The metal piece on the top right threads into the front of the etalon, and allows you to attach that to a larger scope. If you use the stock PST body, this would be a stage 1 mod.
The metal piece on the top left threads into the rear of the etalon, and allows you to attach it to a focuser. This would then be a stage 2 mod.
I'm also including the wood disk I made to attach this all to a Celestron 80 mm refractor scope. This may really only be useful if you have the same telescope, so it may or may not be of value.
------------------
This is obviously a somewhat unique bundle. I paid $110 for the PST mod mounts, and BF10 diagonals cost ~$500. However, this is just for the 10 mm blocking filter, as opposed to the full diagonal. Here's my thought on pricing, broken down by item:
$450 for the scope and carrying case
$100 for the mod mounts
$250 for the BF10
This gives a total of $800 as a starting asking price. I'll have to figure out shipping with whoever is interested in buying.
I'm posting this all up here first to give you guys a crack at it. If I don't have any bites I'll throw it up on astromart later today.
Let me know if you have any questions!
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