Search found 582 matches

by DSobserver
Fri May 26, 2023 10:08 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Lunt double stack filter
Replies: 3
Views: 1098

Re: Lunt double stack filter

For me no difference
I even would bet that most ds filter of our community have been done is 2 waves!
by DSobserver
Fri May 26, 2023 9:57 pm
Forum: Solar Scope Modifications
Topic: Solarmax 40 and Baader H Alpha 35mm CCD filter
Replies: 3
Views: 1240

Re: Solarmax 40 and Baader H Alpha 35mm CCD filter

You mean you expect replacing the itf (and not erf) from the diagonal with this ha filter?

Visually it is dangerous!
Even if baader 35nm is similar to the erf that are not blocking ir as good as itf!

If itf is rusted then ask m’aider or beloptik for replacement!
by DSobserver
Wed May 17, 2023 10:34 pm
Forum: Solar Astronomy Shop and Swap
Topic: New 2nm G-Band filter from Altair
Replies: 15
Views: 2415

Re: New 2nm G-Band filter from Altair

Visually any interest?
by DSobserver
Fri Mar 10, 2023 1:05 pm
Forum: SPoD Archive
Topic: March 9 between the clouds
Replies: 4
Views: 1009

Re: March 9 between the clouds

Superbe!!!!

Vincent
by DSobserver
Tue Feb 21, 2023 3:19 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Binoviewing Lunt 40
Replies: 11
Views: 1739

Re: Binoviewing Lunt 40

I’m using a celestron ultima barlow and a small extension to reach the focus
Is your problem intra or extra focal?
Do you need to place your bino inside or outside to teach focus?

Vincent
by DSobserver
Fri Feb 17, 2023 9:33 pm
Forum: This is SolarChat !!
Topic: Dr Peter Zetner
Replies: 32
Views: 1593

Re: Dr Peter Zetner

Sad news…
Peter, you are now for sure next to our warm star…

Thanks for contributing so much to our hobby!
by DSobserver
Sat Feb 11, 2023 5:15 pm
Forum: Solar Scope Modifications
Topic: Strange Coronado BF10 (1.25) Made in USA!
Replies: 4
Views: 1848

Re: Strange Coronado BF10 (1.25) Made in USA!

itf is clearly missing! no reason except that previous owner remove it

can't be use like this!
by DSobserver
Tue Feb 07, 2023 9:18 pm
Forum: Solar Scope Modifications
Topic: Strange Coronado BF10 (1.25) Made in USA!
Replies: 4
Views: 1848

Re: Strange Coronado BF10 (1.25) Made in USA!

Crazy!

Was it a new one?
by DSobserver
Tue Feb 07, 2023 9:16 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Lunt 40mm DS
Replies: 9
Views: 1708

Re: Lunt 40mm DS

Well done !
What do you think about that one? :D
E7C42935-F186-459E-ADC8-B52E2EA18B24.jpeg
E7C42935-F186-459E-ADC8-B52E2EA18B24.jpeg (916.42 KiB) Viewed 1541 times
by DSobserver
Fri Dec 30, 2022 10:19 pm
Forum: Solar Astronomy Shop and Swap
Topic: Baader Herschel Prism 2" Photographic Version
Replies: 2
Views: 1190

Re: Baader Herschel Prism 2" Photographic Version

picture from the herschel prism + filters
IMG_7144.jpg
IMG_7144.jpg (558.73 KiB) Viewed 1147 times
by DSobserver
Mon Dec 19, 2022 7:30 pm
Forum: Solar Astronomy Shop and Swap
Topic: baader AstroSolar Filter density 3.8- D= 421 mm
Replies: 2
Views: 1290

baader AstroSolar Filter density 3.8- D= 421 mm

for sale a photographic baader astrosolar filter from EMC for scope up to 421mm as you know not anymore existing it is similar to this one but with 3.8 density https://www.teleskop-express.de/shop/product_info.php/language/en/info/p7700_Euro-EMC-visual-Solar-Filter---D--421-mm---for-437-509-mm-teles...
by DSobserver
Mon Dec 19, 2022 7:25 pm
Forum: Solar Astronomy Shop and Swap
Topic: Baader Herschel Prism 2" Photographic Version
Replies: 2
Views: 1190

Baader Herschel Prism 2" Photographic Version

for sale in perfect condition a Baader Safety CoolCeramic Herschel Prism 2" Photographic Version

it includes includes 4 ND-filters - 2" 0,6/0,9/1,8/3,0, Solar-Continuum Filter 2"

price without shipment is 470€

picture are coming
by DSobserver
Tue Nov 01, 2022 9:03 pm
Forum: Solar Scope Modifications
Topic: Doublestack for mod
Replies: 50
Views: 11553

Re: Doublestack for mod

I've tried too to DS lunt50. Despite many newton rings...I came to the conclusion that the picture is darker and gives an impression of higher contrast No real new info on the "DS" picture Vs "SS" picture Would be interesting to compare your mod with a camera, the same day with D...
by DSobserver
Fri Oct 14, 2022 7:58 am
Forum: Solar Astronomy Shop and Swap
Topic: Lunt CAK 1200 filter
Replies: 2
Views: 1324

Re: Lunt CAK 1200 filter

sold
by DSobserver
Wed Oct 12, 2022 11:26 am
Forum: Solar Scope Modifications
Topic: sweet spot and f/d effect
Replies: 22
Views: 3886

Re: sweet spot and f/d effect

And did somebody already tried to remove the collimating lens from the lunt 50 module and using a simple barlow x2 on a F15 scope?
by DSobserver
Tue Oct 11, 2022 4:46 pm
Forum: Solar Scope Modifications
Topic: sweet spot and f/d effect
Replies: 22
Views: 3886

sweet spot and f/d effect

hello just a quick question : presuming I modify a lunt 50 f:d 7 presure tuner, how will f/d scope impact the sweet spot? to be clear, what do you think about using a 127mm mak with f:11 or f/15 ratio vs my current 130 f/7 scope? I assume that Bandwidth would be positively impacted, but sweet spot???
by DSobserver
Sat Oct 01, 2022 3:14 pm
Forum: Solar Astronomy Shop and Swap
Topic: Lunt CAK 1200 filter
Replies: 2
Views: 1324

Re: Lunt CAK 1200 filter

Reduced price

sale price : 1600€ + shipment from France to be discussed
by DSobserver
Tue Aug 30, 2022 2:42 pm
Forum: Solar Astronomy Shop and Swap
Topic: Lunt CAK 1200 filter
Replies: 2
Views: 1324

Lunt CAK 1200 filter

For sale a LuntSolarSystems - Calcium Blocking Filter Modul with B1200 - 2'' in extension tube with T2 and 2'' connection

in perfect condition

price new : 2419€

sale price : 2000€ + shipment from France to be discussed
by DSobserver
Thu Aug 11, 2022 10:22 am
Forum: This is SolarChat !!
Topic: CaK 10th August
Replies: 13
Views: 381

Re: CaK 10th August

hi mark

nice shot!
can u remind us which 80mm f15 scope you're using?
by DSobserver
Mon Oct 25, 2021 5:13 pm
Forum: SPoD Archive
Topic: Solar corona from yesterday
Replies: 8
Views: 488

Re: Solar corona from yesterday

amazing

congratulation!
by DSobserver
Tue Jul 14, 2020 7:06 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: 12 June 2020 Spectroheliograms
Replies: 16
Views: 2979

Re: 12 June 2020 Spectroheliograms

hi peter

as always your our master!

thanks for sharing your results and giving us some ideas!
by DSobserver
Fri May 29, 2020 10:50 pm
Forum: Solar Astronomy Shop and Swap
Topic: lunt 50mm bf400
Replies: 2
Views: 3695

Re: lunt 50mm bf400

Sold
by DSobserver
Wed May 13, 2020 9:45 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: Today's solar surface by SHG
Replies: 10
Views: 3026

Re: Today's solar surface by SHG

waouhhh!

very original setup!
by DSobserver
Tue Nov 05, 2019 10:13 pm
Forum: Solar Astronomy Shop and Swap
Topic: lunt 50mm bf400
Replies: 2
Views: 3695

Re: lunt 50mm bf400

REDUCE PRICE 820€
by DSobserver
Sun Nov 03, 2019 5:29 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Help coronado bf10??
Replies: 1
Views: 2600

Re: Help coronado bf10??

definitelly not an original diagonal and itf (IR cut filer) is missing.

Should not be use like this!
by DSobserver
Thu Oct 17, 2019 9:34 am
Forum: Solar Astronomy Shop and Swap
Topic: lunt 50mm bf400
Replies: 2
Views: 3695

lunt 50mm bf400

For sale a lunt 50mm bf400 in perfect condition

price 850€
by DSobserver
Tue Aug 20, 2019 8:44 pm
Forum: Solar Scope Modifications
Topic: Blocking Filter In a Collimated Beam?
Replies: 10
Views: 4453

Re: Blocking Filter In a Collimated Beam?

I recently stack a coronado bf15 with a Lunt bf400:
Picture was very very dark
by DSobserver
Mon Jun 24, 2019 11:41 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: A 19th century PST
Replies: 5
Views: 2857

Re: A 19th century PST

Nice!

Can you describe how you manage it?
by DSobserver
Thu Jun 06, 2019 5:45 pm
Forum: Solar Astronomy Shop and Swap
Topic: Ha Quark Daystar + Tecnosky 152 scope + D-ERF
Replies: 3
Views: 6805

Ha Quark Daystar + Tecnosky 152 scope + D-ERF

For sale my Ha setup Includes: - technosky 152/900 (http://shop.tecnosky.it/Articolo.asp?SessionID=0F3F4F34-83EA-4D62-9F12-20B2EA9603F&GetInfo=TKacro152&AddScore=TKacro152&Score=1) same as TS : excellent scope in the red -D-ERF 75mm with internal adapter -Quark chromosphere with USB cabl...
by DSobserver
Thu Mar 28, 2019 6:34 pm
Forum: SPoD Archive
Topic: ladies and gentleman the ultimate animation of March 24
Replies: 11
Views: 3414

Re: ladies and gentleman the ultimate animation of March 24

superbe!!!!

et dire que c'est mon ancien PST.... :hamster:
by DSobserver
Mon Mar 18, 2019 12:50 pm
Forum: Solar Astronomy Shop and Swap
Topic: Baader 1.25” continuum filter
Replies: 1
Views: 3561

Baader 1.25” continuum filter

For sale a Baader 1.25” continuum filter

Price 45€ includes shipment
by DSobserver
Mon Mar 18, 2019 8:38 am
Forum: Solar Scope Modifications
Topic: My ITF is not in the usual place
Replies: 13
Views: 4916

Re: My ITF is not in the usual place

Luckily it’s a valery erf that block most wavelengths. A baader one would have gave you a greenish sun as FP and BF doesn’t block all of them
by DSobserver
Wed Jan 16, 2019 6:41 pm
Forum: Solar Astronomy Shop and Swap
Topic: for sale 2"pst adapter
Replies: 1
Views: 3400

Re: for sale 2"pst adapter

sold
by DSobserver
Wed Jan 16, 2019 6:40 pm
Forum: Solar Astronomy Shop and Swap
Topic: MFor sale : AK 180/2700
Replies: 0
Views: 9979

MFor sale : AK 180/2700

For sale in excellent condition a skywatcher black diamond MAK 180/2700.

It includes:

8x50 finder scope
28mm eyepiece
bag
astrosolar filter

price 700€ + shipment
by DSobserver
Sun Jan 13, 2019 7:32 pm
Forum: Solar Astronomy Shop and Swap
Topic: for sale 2"pst adapter
Replies: 1
Views: 3400

for sale 2"pst adapter

for sale 2"pst adapter

35€
by DSobserver
Sun Jul 15, 2018 1:02 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: Recent Digital SHG
Replies: 12
Views: 5366

Re: Recent Digital SHG

Waouhhhh
Fantastic result!
by DSobserver
Sun Jul 15, 2018 11:36 am
Forum: This is SolarChat !!
Topic: 13/07/18 Ha sun
Replies: 8
Views: 1629

Re: 13/07/18 Ha sun

Thanks guys!
Valery,
My mod is here : viewtopic.php?f=9&t=22247
by DSobserver
Sun Jul 15, 2018 11:35 am
Forum: This is SolarChat !!
Topic: July 12 - More Ha
Replies: 12
Views: 2100

Re: July 12 - More Ha

Lasts 3 are indeed best ones!
by DSobserver
Sun Jul 15, 2018 11:34 am
Forum: This is SolarChat !!
Topic: 15th July AR Tal/PST mod
Replies: 6
Views: 1396

Re: 15th July AR Tal/PST mod

Crispy picture!
by DSobserver
Sat Jul 14, 2018 4:33 pm
Forum: This is SolarChat !!
Topic: 13/07/18 Ha sun
Replies: 8
Views: 1629

13/07/18 Ha sun

Finally I found some minutes to use my 152mm lunt 50 mod scope!

Sky was not so great, but lot of activity!

Image

Image
by DSobserver
Sat Jul 14, 2018 9:45 am
Forum: This is SolarChat !!
Topic: Sun from 30th June and Noctilucent clouds
Replies: 17
Views: 2997

Re: Sun from 30th June and Noctilucent clouds

great clouds! I would love to see similar ones!
by DSobserver
Sat Jul 14, 2018 9:44 am
Forum: This is SolarChat !!
Topic: Partial solar eclipse 13 July
Replies: 10
Views: 2099

Re: Partial solar eclipse 13 July

you made it!