LS60THA + Skywatcher Evostar 102/1000mm

Frankenscope? Let's see it!***be advised that NOTHING in this forum has been safety tested and you are reading and using these posts at your own peril. blah, blah, blah... dont mess around with your eyesight when it comes to solar astronomy. Use appropriate filtration at all times...
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NewtFan
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LS60THA + Skywatcher Evostar 102/1000mm

Post by NewtFan »

Thanks to Solar Chat Forum, I bought this spring Lunt LS60THA/B1200C intention to build a 200mm ... 250mm Ha telescope (sometime in the future).
First aid my Ha aperture hunger I did this 750 euro 102mm Ha modification.

This mod is meade only the camera use - NOT FOR VISUAL USE !

110mm D-ERF fit in SkyWatsher dewcap loose (my dewcap bore is 112.65mm , average - it is slightly oval, but that 2mm thick aluminum tube easy to shape round by hand)
I cut a 10mm ring from 110/103mm PVC pipe plug. Because the ring was a bit too small, I cut it off, and put a 8mm piece of PVC in between ring,
so that the ring tightly fit. Tight ring was easy set in the right place in dewcap. When the ring was in right place, I super glued it. Super glue is absorbed by capillary in narrow gap dewcap and PVC ring - and stays!
Outer PVC ring to prevent falling out of D-EFR is attached with three screws.


I removed SW fokuser, and attached extension tube (I meade it 100/90mm PVC tube - Lunt fit inside without machining!)
Removed Lunt 60mm front lens, and insert Lunt in plase. Thats it.

I hope the pictures will help.
Attachments
Motorfokus.jpg
Motorfokus.jpg (139.22 KiB) Viewed 2577 times
Lunt_SW connection.jpg
Lunt_SW connection.jpg (133.68 KiB) Viewed 2577 times
D-ERF in Dewcap inside view.jpg
D-ERF in Dewcap inside view.jpg (142.89 KiB) Viewed 2577 times
Lunt _ skyWatsher mod_2.png
Lunt _ skyWatsher mod_2.png (25.75 KiB) Viewed 2577 times
Lunt _ skyWatsher mod_1b.png
Lunt _ skyWatsher mod_1b.png (19.53 KiB) Viewed 2577 times


NewtFan
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Re: LS60THA + Skywatcher Evostar 102/1000mm

Post by NewtFan »

Some pics LS60THA + Skywatcher Evostar 102/1000mm
2x Barlow and DMK31.
Attachments
2014-07-06.jpg
2014-07-06.jpg (102.56 KiB) Viewed 2574 times
2014-07-06 - 10_05 AR 2104.jpg
2014-07-06 - 10_05 AR 2104.jpg (82.16 KiB) Viewed 2574 times
2014-07-06 - 09_59 AR 2108.jpg
2014-07-06 - 09_59 AR 2108.jpg (79.92 KiB) Viewed 2574 times


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swisswalter
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Re: LS60THA + Skywatcher Evostar 102/1000mm

Post by swisswalter »

Hi John

a fine mod, great results


Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)
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pstew
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Re: LS60THA + Skywatcher Evostar 102/1000mm

Post by pstew »

Excellent mod


Paul

Timaru, New Zealand

LS152Tha/B34/DSII, LS80THa/B18/DSII, LS60Tha/B12, Grasshopper3(ICX687), Chameleon 3(IMX264)
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Re: LS60THA + Skywatcher Evostar 102/1000mm

Post by marktownley »

A good result!


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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Re: LS60THA + Skywatcher Evostar 102/1000mm

Post by highfnum »

nice work
ill have to try this
its kinda opposite of my mod
i went for short FL lens
you went for long FL

your results remind me of quark images


NewtFan
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Re: LS60THA + Skywatcher Evostar 102/1000mm

Post by NewtFan »

I read my first posting, and I din't understand much about it :oops: Google translate my thoughts not so right. I feel sorry for you - blame Google translator not me for my horrible english.

Back to business.
Thank you for your encouragement!

Without the 2x barlow there is great amount of vinetting, here is two examples.. only some extent sharpened, and not so good seeing. (pics 2014-07-05)
Instead shooting prominences (pics 2014-06-15) , vinetting not interfere so badly. Of course, flat images would eliminate the vinetting problem, but how to shoot flats with Ha scope ?? Prominences pics are modified quite a lot, (lot of curves and sharpening) .
Attachments
2014-07-05 AR 2109 and 2108.jpg
2014-07-05 AR 2109 and 2108.jpg (134.21 KiB) Viewed 2513 times
2014-07-05  AR 2107 and 2104.jpg
2014-07-05 AR 2107 and 2104.jpg (138.3 KiB) Viewed 2513 times
2014-06-15 c.jpg
2014-06-15 b.jpg
2014-06-15.jpg


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swisswalter
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Re: LS60THA + Skywatcher Evostar 102/1000mm

Post by swisswalter »

Hi John

we use a transparent plastik foil to take the flat. PE works, PVDC not


Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)
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michael.h.f.wilkinson
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Re: LS60THA + Skywatcher Evostar 102/1000mm

Post by michael.h.f.wilkinson »

That looks great!!


Solar kit: GP-C8 with Thousand Oaks Solar filter, APM 80mm F/6, Lunt Herschel Wedge, Solar Spectrum 0.3Å H-alpha filter, Beloptic Tri-Band ERF (80mm free aperture), Thousand Oaks 90mm ERF, Coronado SolarMax II 60mm with Double Stack Unit. Lunt straight B1800 Ca-K module.
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