my little lunt60 mod

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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my little lunt60 mod

Post by highfnum » Mon Jun 02, 2014 1:06 am

luntchimd.jpg
luntchimd.jpg (154.06 KiB) Viewed 3525 times
take lunt 60 and unscrew front 60mm lens assembly
then insert a 75 mm by 250 mm plano convex lens 20mm closer to etalon

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Re: my little lunt60 mod

Post by highfnum » Mon Jun 02, 2014 1:07 am

inserted.jpg
inserted.jpg (163.73 KiB) Viewed 3524 times
push down to proper place

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Re: my little lunt60 mod

Post by highfnum » Mon Jun 02, 2014 1:09 am

luntchfin.jpg
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place 75 ERF in front to prevent extra heat and tone down brightness

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Re: my little lunt60 mod

Post by highfnum » Mon Jun 02, 2014 1:11 am

lunt75.jpg
lunt75.jpg (165.54 KiB) Viewed 3524 times
here is some pics of result --plz excuse pollen dust on lens - its that time of year

image of sun is slighty smaller - but brighter and can use barlow

not sure of gain in doing this - but i could so I did

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Re: my little lunt60 mod

Post by highfnum » Mon Jun 02, 2014 1:13 am

fc2_save_2014-06-01-185142-0000lunt75.jpg
new image size

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Re: my little lunt60 mod

Post by swisswalter » Mon Jun 02, 2014 4:09 am

Hi John

a wild mod. Seems to work
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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Re: my little lunt60 mod

Post by marktownley » Mon Jun 02, 2014 6:08 am

Cool stuff! :)
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: my little lunt60 mod

Post by GUS » Mon Jun 02, 2014 7:14 am

Hi John,interesting mod,also noticed the shoelace tied to the BF,which I figure is tied off to the focusing tube to stop the BF from sliding out(something so simple)Good idea.

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Re: my little lunt60 mod

Post by swisswalter » Mon Jun 02, 2014 11:58 am

Hi GUS

eagle eyes ;)
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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Re: my little lunt60 mod

Post by GUS » Mon Jun 02, 2014 12:31 pm

Hi Walter, having a Lunt scope myself I know how easily the BF can slip out of the focuser tube,but never considered any fix for it until I noticed johns solution(and so simple).

GUS

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Re: my little lunt60 mod

Post by swisswalter » Mon Jun 02, 2014 4:40 pm

:bow2 GUS some times less is more
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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Re: my little lunt60 mod

Post by highfnum » Mon Jun 02, 2014 10:05 pm

string1.jpg
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funny i show how to convert 60mm to 75mm scope for 240$
and everyone is thrilled over a 25 cent shoelace
so..
here is shoelace mod

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Re: my little lunt60 mod

Post by highfnum » Mon Jun 02, 2014 10:07 pm

string2.jpg
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and here is test :D

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Re: my little lunt60 mod

Post by swisswalter » Tue Jun 03, 2014 3:18 am

Hi John

thanks for the close up of the shoelace
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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Re: my little lunt60 mod

Post by GUS » Tue Jun 03, 2014 5:41 am

Hi John,I was actually zooming in on the solar finder (another neat and simple solution),when I noticed the shoe lace. I usually scan around mod photos to get ideas ,and sometimes you come across something, and think to your self why didn"t I think of it, and yes Walter sometimes less is more.
On another note, how does the mod work visually,and where did you get the lens from.
Thanks
GUS

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Re: my little lunt60 mod

Post by highfnum » Tue Jun 03, 2014 10:51 am

Sun finder made from aluminum
stock
but my cool idea at back
there is a small cut and polished diamond
that glint when light hits it

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Re: my little lunt60 mod

Post by highfnum » Tue Jun 03, 2014 10:53 am

I got lens from Edmund

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Re: my little lunt60 mod

Post by GUS » Tue Jun 03, 2014 11:39 am

HI John,LOL,but seriously how does it compare visually to the 60mm lens.

Thanks GUS.

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Re: my little lunt60 mod

Post by swisswalter » Tue Jun 03, 2014 11:45 am

highfnum wrote:Sun finder made from aluminum
stock
but my cool idea at back
there is a small cut and polished diamond
that glint when light hits it

Hi John

a very interesting idea with the diamond. What size of diamond do you need?
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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Re: my little lunt60 mod

Post by highfnum » Tue Jun 03, 2014 1:14 pm

1/10 carat or less
smaller in this case is better more accurate locator
round cut and polished not rough
NYC is big diamond district
you can get for 5 to ten dollars
smaller is more accurate


Big diamonds are for the women!

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Re: my little lunt60 mod

Post by highfnum » Tue Jun 03, 2014 1:16 pm

One hard thing is mounting
try not to get glue in front of diamond
will make dull and defeat purpose

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Re: my little lunt60 mod

Post by swisswalter » Tue Jun 03, 2014 2:23 pm

Hi John

thank you very much. I'll get one and will report. Maybe you have come up with a wonderful new solarsearcher idea
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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Re: my little lunt60 mod

Post by highfnum » Tue Jun 03, 2014 4:42 pm

Also notice
distance to fron those is short
smaller image more accurate

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Re: my little lunt60 mod

Post by swisswalter » Tue Jun 03, 2014 4:48 pm

Hi John

I will remember ;)
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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Re: my little lunt60 mod

Post by highfnum » Tue Jun 03, 2014 8:47 pm

Walter
diamond is 1mm to two millimeter diameter
1mm is 0.01 carats
real small

Not 1/10

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