my little lunt60 mod
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my little lunt60 mod
then insert a 75 mm by 250 mm plano convex lens 20mm closer to etalon
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Re: my little lunt60 mod
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
Hi John
a wild mod. Seems to work
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
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Re: my little lunt60 mod
Cool stuff!
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
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
Hi GUS
eagle eyes
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
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
GUS
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Re: my little lunt60 mod
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
and everyone is thrilled over a 25 cent shoelace
so..
here is shoelace mod
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Re: my little lunt60 mod
Hi John
thanks for the close up of the shoelace
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
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
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
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
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
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
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!
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
One hard thing is mounting
try not to get glue in front of diamond
will make dull and defeat purpose
try not to get glue in front of diamond
will make dull and defeat purpose
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Re: my little lunt60 mod
Hi John
thank you very much. I'll get one and will report. Maybe you have come up with a wonderful new solarsearcher idea
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
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
Hi John
I will remember
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
from 7 am - 7 pm http://www.nanosys.ch
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Re: my little lunt60 mod
Walter
diamond is 1mm to two millimeter diameter
1mm is 0.01 carats
real small
Not 1/10
diamond is 1mm to two millimeter diameter
1mm is 0.01 carats
real small
Not 1/10
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Re: my little lunt60 mod
Hi John
thanks a lot for the size information
thanks a lot for the size information
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
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
Nice shots with the mod!
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
Great results from the modded scope!!!
Brian
Brian
Brian Colville
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
Re: my little lunt60 mod
Just what does this mod do? Also, where can I pick up that convex lens? Thanks.
Jim
Jim
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Re: my little lunt60 mod
I got mine at Edmund optics
I bet If I tried I could have found one for less money
Reason for Mod
My idea was to get more resolution 60mm vs 75 mm out of same scope
second slightly faster f ratio for brighter image so when I use Barlow I got more light to work with
and do it so it was reversible without changing original spec of scope
I bet If I tried I could have found one for less money
Reason for Mod
My idea was to get more resolution 60mm vs 75 mm out of same scope
second slightly faster f ratio for brighter image so when I use Barlow I got more light to work with
and do it so it was reversible without changing original spec of scope
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Re: my little lunt60 mod
i tried this mod with cheap 4 dollar lens to see if
results would equal 80 dollar lens
forget it
disk had poor detail
i got
one more
90 by 300 mm
ill get back
results would equal 80 dollar lens
forget it
disk had poor detail
i got
one more
90 by 300 mm
ill get back
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Re: my little lunt60 mod
Hi John
good luck, we are expecting results asap
good luck, we are expecting results asap
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
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
ok I did preliminary test with 90 X 300 mm lens
I used tape and foam rubber for now i cant promise lens was optically square
but initial l test look good
here is first shot
I used tape and foam rubber for now i cant promise lens was optically square
but initial l test look good
here is first shot
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Re: my little lunt60 mod
lens position is critical to get sharp image
Im to close to etalon as you can see
I had to add 2 tubes to get to focus
but I will build proper lens mount and fins its proper position (I hope
Im to close to etalon as you can see
I had to add 2 tubes to get to focus
but I will build proper lens mount and fins its proper position (I hope
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Re: my little lunt60 mod
Hi John
yes it is all about sharpness and contrast dealing with distances. Good luck
yes it is all about sharpness and contrast dealing with distances. Good luck
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
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
so far first mod is best - 75mm by 250
I guess the 80 dollar lens was worth the money
I guess the 80 dollar lens was worth the money
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Re: my little lunt60 mod
75mm (edmund) lens works just fine visually
a litter brighter
OK
i tried with 90mm lens and changed position
also cut lens down to 83mm
I also changed position
and got what I consider second best results
75mm is still sharper
but 30 dollar lens did OK see for yourself
a litter brighter
OK
i tried with 90mm lens and changed position
also cut lens down to 83mm
I also changed position
and got what I consider second best results
75mm is still sharper
but 30 dollar lens did OK see for yourself
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Re: my little lunt60 mod
above shots - no barlow
I did need (1) 4 inch extension tube due to longer focus
so here is my final config for this mod is a get a better quality lens then ill flip it
I did need (1) 4 inch extension tube due to longer focus
so here is my final config for this mod is a get a better quality lens then ill flip it
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Re: my little lunt60 mod
one more thing notice my june 28 shot was much softer before final changes
position is critical
and quality of lens (DUH )
position is critical
and quality of lens (DUH )
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Re: my little lunt60 mod
to JIM
I used edmund part # 63495 Lens PCX 75 X 250 MGF2 CTD
the 90 I gotta find papers I know its 90 X 300
all millimeters
I used edmund part # 63495 Lens PCX 75 X 250 MGF2 CTD
the 90 I gotta find papers I know its 90 X 300
all millimeters
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Re: my little lunt60 mod
Seems like a good looking and cheap mod.
I will probably be purchasing a lunt ls50 shortly, so really curious, if this upgrade can also be applied. What lens size would be more appropriate, since, LS50 focal ratio is F/7, against 60's f/8.3
I will probably be purchasing a lunt ls50 shortly, so really curious, if this upgrade can also be applied. What lens size would be more appropriate, since, LS50 focal ratio is F/7, against 60's f/8.3
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Re: my little lunt60 mod
Thank you,
I'm a bit confused here, Lunt 60 has native f/8.3 and the convex lens you used is f/ 3.3
What's the logic behind calculating the right lens fot Lunt 50 then?
Please, bear with me, my optical knowledge is pretty vague.
I'm a bit confused here, Lunt 60 has native f/8.3 and the convex lens you used is f/ 3.3
What's the logic behind calculating the right lens fot Lunt 50 then?
Please, bear with me, my optical knowledge is pretty vague.
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Re: my little lunt60 mod
Correct lunt has built in telecentric Barlow
Lunt native lens is very short also
If you unscrew it and test you see what I mean
Lunt native lens is very short also
If you unscrew it and test you see what I mean