Search found 222 matches

by mami813
Mon Oct 03, 2022 9:20 am
Forum: Solar Astronomy Shop and Swap
Topic: quark chrom
Replies: 2
Views: 98

Re: quark chrom

sold.
by mami813
Sun Oct 02, 2022 6:39 am
Forum: Solar Astronomy Shop and Swap
Topic: quark chrom
Replies: 2
Views: 98

quark chrom

It's my first sale, but I've made a lot of purchases here. The sun is not popular in Korea. Selling a very nice quark chrom version. The price is $775 + shipping is $25. For safety's sake, I will only accept PayPal payments. I will provide the tracking number. Performance is very good. All the attac...
by mami813
Wed Sep 28, 2022 1:29 pm
Forum: This is SolarChat !!
Topic: 11/09 Region 13097-13092-13093
Replies: 36
Views: 593

Re: 11/09 Region 13097-13092-13093

wow!!!!
by mami813
Sat Sep 24, 2022 2:47 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: disassemble the quark.
Replies: 16
Views: 517

Re: disassemble the quark.

I do like a good disassembly thread! Can you post a pic of the rear side of the printed circuit board please? I am keen to put a 'proper' power connection on my quark rather than the temperamental USB socket. hello, mark Unfortunately I have already assembled it. Sorry for not being of any help. Tr...
by mami813
Wed Sep 21, 2022 11:52 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: disassemble the quark.
Replies: 16
Views: 517

Re: disassemble the quark.

Jongho, this is a great post. There are some interesting points to consider from your images. There are 3 external connections on the circuit board, USB 5v in , thermostat sensor and heater out. If you have an electrically non functioning Quark, you could replace the internal circuit board with 2 e...
by mami813
Wed Sep 21, 2022 11:51 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: disassemble the quark.
Replies: 16
Views: 517

Re: disassemble the quark.

Was there air between the cake layers and the housing? Or was it pressed in? There is a little air gap with the housing. There is a slight gap between the etalon assembly and the housing. As you can see in the photo, the etalon assembly is different in size. The middle etalon is not a perfect fit, ...
by mami813
Wed Sep 21, 2022 11:45 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: disassemble the quark.
Replies: 16
Views: 517

Re: disassemble the quark.

The two black lines in the center did not match, so I applied a little force to match the black lines. After assembly, it works without any problems. Does that mean that it did not work properly before? But after reassembly it works better? It looked good even before adjustment. There was no feelin...
by mami813
Wed Sep 21, 2022 11:53 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: disassemble the quark.
Replies: 16
Views: 517

disassemble the quark.

I mustered up the courage to disassemble the quark Prom. Perhaps the first inside a quark. The structure is not complicated. The filters at both ends are fixed and do not move. The two black lines in the center did not match, so I applied a little force to match the black lines. After assembly, it w...
by mami813
Sun Sep 18, 2022 12:24 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Has anyone done a quark decomposition?
Replies: 5
Views: 160

Re: Has anyone done a quark decomposition?

marktownley wrote: Sun Sep 18, 2022 11:49 am Looking forward to seeing this.
I'll reveal it. It doesn't take long. The inside was simpler than I thought.
by mami813
Sun Sep 18, 2022 8:24 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Has anyone done a quark decomposition?
Replies: 5
Views: 160

Re: Has anyone done a quark decomposition?

Hi Mami, I did it with a T-Scanner. https://solarchatforum.com/viewtopic.php?p=338763&hilit=t+scanner#p338763 Daystar contacted me afterwards to check it in their fab. But the guy never (yes, you Mark!) answered my emails. Therefore I gave up on Daystar. As soon as I am in the mood I will put i...
by mami813
Sun Sep 18, 2022 4:44 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Has anyone done a quark decomposition?
Replies: 5
Views: 160

Has anyone done a quark decomposition?

Has anyone done a quark decomposition?
I'm trying to be brave and give it a try.
by mami813
Fri Sep 02, 2022 9:26 am
Forum: This is SolarChat !!
Topic: 2022.09.01 Sunspot in Magnesium I b2 Line
Replies: 6
Views: 115

Re: 2022.09.01 Sunspot in Magnesium I b2 Line

여기서도 뵈서 반갑네요..ㅎㅎ
by mami813
Wed Aug 31, 2022 10:28 am
Forum: Solar Scope Modifications
Topic: Quark + PST Stage II Double Stack
Replies: 4
Views: 214

Re: Quark + PST Stage II Double Stack

Thank you for sharing information.
Can you show me the equipment setup picture?
by mami813
Wed Aug 31, 2022 9:36 am
Forum: Solar Scope Modifications
Topic: iStar Optical for Solar
Replies: 36
Views: 1569

Re: iStar Optical for Solar

Hi. I've been using an istar h@ 150mm for a long time. It's a very good lens. Better than sw 150 f8 of the same size. Most of the h@ results on my homepage are taken with an istar 150mm. Keep that in mind. www.sunview.co.kr You had sw 150/f8? You say that 150 Istar f10 better Sw 150/f8? iSTAR 150/F...
by mami813
Thu Aug 25, 2022 4:10 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: alie`s 395-10nm
Replies: 3
Views: 167

alie`s 395-10nm

This is a 10nm filter sold by AliExpress. Do you think there are many performance differences between Andover-396-5 nm? https://www.aliexpress.com/item/3256804175198778.html?pdp_npi=2%40dis%21USD%21US%20%24366.00%21US%20%24366.00%21%21%21%21%21%402101d1b316614003953478141e750d%2112000028906631734%21...
by mami813
Mon Aug 22, 2022 6:00 am
Forum: Solar Scope Modifications
Topic: Help me.(Stripping the Aluminum Coating from a Mirror)
Replies: 6
Views: 226

Re: Help me.(Stripping the Aluminum Coating from a Mirror)

I also used Ferric Chloride. I worked really nicely https://solarchatforum.com/viewtopic.php?t=11814 , as it did for Bart https://solarchatforum.com/viewtopic.php?t=25766 The trick with masking tape around the edges worked well for me. Don't forget the bicarbonate of soda to neutralize the ferric c...
by mami813
Mon Aug 22, 2022 5:56 am
Forum: Solar Scope Modifications
Topic: Help me.(Stripping the Aluminum Coating from a Mirror)
Replies: 6
Views: 226

Re: Help me.(Stripping the Aluminum Coating from a Mirror)

Hi Jong Ho, I have stripped several mirrors. Here a summary of one easy case and of one difficult case: https://solarchatforum.com/viewtopic.php?t=37485 https://solarchatforum.com/viewtopic.php?t=26525 I'm using Iron chloride, the same product for electronic printed circuit boards. Does it arm the ...
by mami813
Sun Aug 21, 2022 4:20 am
Forum: Solar Scope Modifications
Topic: Help me.(Stripping the Aluminum Coating from a Mirror)
Replies: 6
Views: 226

Help me.(Stripping the Aluminum Coating from a Mirror)

Hi, everyone I have a 12-inch mirror from Orion Optics in the UK. I decided to remove the aluminum coating for use in solar viewing. However, although sodium hydroxide was used, the aluminum coating did not disappear. Does ferric chloride disappear if used? If it doesn't disappear in this way, is th...
by mami813
Sun Aug 21, 2022 12:03 am
Forum: Solar Scope Modifications
Topic: SkyWatcher Heritage 130p Solar Dob Mod
Replies: 9
Views: 6299

Re: SkyWatcher Heritage 130p Solar Dob Mod

Does the second mirror also require the coating to be removed?
by mami813
Sat Aug 20, 2022 2:01 pm
Forum: This is SolarChat !!
Topic: SOLAR300 Continuum - AR13004 sunspot shaped like a fireball
Replies: 29
Views: 601

Re: SOLAR300 Continuum - AR13004 sunspot shaped like a fireball

It's a great picture. I'm curious about your equipment specification. Mirror, second mirror brand name, etc. Hi, It is a custom made newtonian telescope, design by me, after consultations with couple of astrophotographers like Christian Viladrich. It is manufactured by friend of mine (amateur astro...
by mami813
Thu Aug 18, 2022 1:25 pm
Forum: This is SolarChat !!
Topic: SOLAR300 Continuum - AR13004 sunspot shaped like a fireball
Replies: 29
Views: 601

Re: SOLAR300 Continuum - AR13004 sunspot shaped like a fireball

It's a great picture.
I'm curious about your equipment specification.
Mirror, second mirror brand name, etc.
by mami813
Sun Aug 14, 2022 1:40 pm
Forum: This is SolarChat !!
Topic: Aug 11 2022 - Testing a D-ERF
Replies: 7
Views: 200

Re: Aug 11 2022 - Testing a D-ERF

The DERF will be sold by a company called Astro Hutech based in Los Angeles. Each cell will be custom made to fit your specific scope/dew shield. The price point we are aiming for is $800 for a 6" including the DERF and holder. Smaller ones being cheaper. As for sizes, most likely they will be...