Search found 918 matches

by GeorgeIonas
Sun May 20, 2018 12:07 am
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 536

Re: Replacing the Rusted BF30 Filter

Hi Rainer, I went with the UV/IRcutKG3 filter cut down to 34mm so it would be a easy "drop in" replacement into the BF30. Sorry to hear that the 12nm Ha filter did not thread into the BF30. An alternative would be to screw the filter into a short extension tube in front to the BF30. On another note ...
by GeorgeIonas
Fri May 18, 2018 11:05 pm
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 536

Re: Replacing the Rusted BF30 Filter

Hi Bob, I read your post "A filter journey" which explains all that I need to know - excellent post ! Oliver has sent me the replacement UV/IRcutKG3 filter for the DS SM90s. My other option was to use a Baader 35nm Ha filter as suggested by Ken. I just don't know why Meade do not use this conversion...
by GeorgeIonas
Sun May 13, 2018 10:15 am
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 536

Re: Replacing the Rusted BF30 Filter

Hi Rainer, I had an email from Oliver Smie from Beloptic suggesting that I would only require the UV/IRcutKG3 filter as an ITF replacement with diameter of 34mm for my double stacked Coronado SM90 Etalons. What I don't understand is why I only require the UV/IRcutKG3 filter and not their replacement...
by GeorgeIonas
Fri May 11, 2018 5:20 am
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 536

Re: Replacing the Rusted BF30 Filter

Thank you for the information Ken.

George
by GeorgeIonas
Fri May 11, 2018 12:04 am
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 536

Re: Replacing the Rusted BF30 Filter

Hi Rainer,

Oliver at Beloptik said that Friday is a public holiday.

George
by GeorgeIonas
Thu May 10, 2018 7:20 pm
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 536

Re: Replacing the Rusted BF30 Filter

Thank you Christian.

George
by GeorgeIonas
Tue May 08, 2018 7:59 pm
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 536

Replacing the Rusted BF30 Filter

I'm looking at replacing my rusted straight through BF30 filter with a durable ITF Beloptik filter. I understand that I will also need a UV/IRcutKG3 filter as well since the double stacked Coronado (external) SM90's use a front red ERF filter. Can somebody direct me where I can find the layout of th...
by GeorgeIonas
Thu May 03, 2018 9:42 am
Forum: Solar Astronomy Equipment Reviews
Topic: iOptron CEM 120
Replies: 10
Views: 622

Re: iOptron CEM 120

Hi Rainer,

I went with the CEM120EC not the EC2 model in the end.

I have a feeling that the EC2 models will be useful in correcting for atmospheric refraction?

George
by GeorgeIonas
Sun Apr 15, 2018 9:46 am
Forum: Solar Astronomy Equipment Reviews
Topic: iOptron CEM 120
Replies: 10
Views: 622

Re: iOptron CEM 120

Hi Rainer,

Is there any advantage in going from the CEM120EC to the CEM120EC2? How important are the encoders on the Dec axis?

I'm ready to order one in the next few days so I would appreciate your input.

George
by GeorgeIonas
Mon Mar 05, 2018 10:37 am
Forum: This is SolarChat !!
Topic: Solar Prominrnce 4th March 2018
Replies: 8
Views: 355

Solar Prominrnce 4th March 2018

Here are a few images that took of the solar prominence on the 4th of March. One can see the strong magnetic field on the neighboring prominence. The seeing was not the best as the sun was over the garage roof and I was getting a lot of heat shimmer. The images were taken with the Takahashi FS-60Q (...
by GeorgeIonas
Mon Mar 14, 2016 4:29 am
Forum: This is SolarChat !!
Topic: Sol from the 12th and 13th of March 2016.
Replies: 11
Views: 430

Re: Sol from the 12th and 13th of March 2016.

Wow Eric ... love the detail you got from the prominence.

George
by GeorgeIonas
Sun Mar 13, 2016 9:07 pm
Forum: This is SolarChat !!
Topic: Sunday through haze and cloud
Replies: 28
Views: 925

Re: Sunday through haze and cloud

Nice resolution in particular the proms.

George
by GeorgeIonas
Sun Mar 13, 2016 9:02 pm
Forum: This is SolarChat !!
Topic: Nice filaprom & prominence - 13 March
Replies: 15
Views: 507

Re: Nice filaprom & prominence - 13 March

Thank you all for your comments. Hopefully others had a chance to image the this filaprom.

George
by GeorgeIonas
Sun Mar 13, 2016 2:45 am
Forum: This is SolarChat !!
Topic: Nice filaprom & prominence - 13 March
Replies: 15
Views: 507

Nice filaprom & prominence - 13 March

Just a heads-up for those of you who are starting their day. There is a nice filaprom and prominence on the sun at the moment. The seeing was terrible and I had to image from gaps between the clouds but the effort was well worth it. George 20160312_7_22_08_25 2FM inv col comp.jpg 20160312_7_22_08_25...
by GeorgeIonas
Sun Feb 14, 2016 6:24 am
Forum: This is SolarChat !!
Topic: It was hot, humid, windy & the seeing was poor........
Replies: 17
Views: 437

Re: It was hot, humid, windy & the seeing was poor........

You captured some nice detail Matt.

George
by GeorgeIonas
Sun Feb 14, 2016 6:22 am
Forum: This is SolarChat !!
Topic: AR2497
Replies: 6
Views: 201

Re: AR2497

Nice capture Paul.

George
by GeorgeIonas
Sun Jan 10, 2016 7:53 am
Forum: This is SolarChat !!
Topic: Today's discs 10 January 2016
Replies: 9
Views: 326

Re: Today's discs 10 January 2016

Love that filaprom Matt.

George
by GeorgeIonas
Sun Jan 10, 2016 7:51 am
Forum: This is SolarChat !!
Topic: Arvo Sun Morning Reflection
Replies: 7
Views: 194

Re: Arvo Sun Morning Reflection

Great shots Derek, I was clouded out here to see the conjunction of Saturn and Venus - thanks for sharing the image.

George
by GeorgeIonas
Fri Jan 08, 2016 8:50 am
Forum: This is SolarChat !!
Topic: Lots of Proms Today - 7th Jan.
Replies: 10
Views: 496

Re: Lots of Proms Today - 7th Jan.

Thank you all for your kind comments. It was a surprise to see so many proms and had a spell of good seeing as well.

George
by GeorgeIonas
Thu Jan 07, 2016 9:35 am
Forum: This is SolarChat !!
Topic: Lots of Proms Today - 7th Jan.
Replies: 10
Views: 496

Lots of Proms Today - 7th Jan.

Lots of prominences about today.

George
20160107_3_04_17_23 mono comp.jpg
20160107_3_04_17_23 mono comp.jpg (156.28 KiB) Viewed 496 times
20160107_4_04_18_44 mono occ comp.jpg
20160107_4_04_18_44 mono occ comp.jpg (46.74 KiB) Viewed 496 times
20160107_3_04_17_23 col comp.jpg
20160107_3_04_17_23 col comp.jpg (195.07 KiB) Viewed 496 times
by GeorgeIonas
Thu Jan 07, 2016 6:44 am
Forum: This is SolarChat !!
Topic: Sol from the 6th of January 2016.
Replies: 7
Views: 398

Re: Sol from the 6th of January 2016.

You have captured some nice prominence activity Eric. I have just got home and having a look now, thank you for the heads up.

George
by GeorgeIonas
Tue Dec 08, 2015 7:09 pm
Forum: This is SolarChat !!
Topic: Dec 08 2015 Double Stack 150mm telescope.
Replies: 12
Views: 533

Re: Dec 08 2015 150mm Double Stack 150mm telescope.

Looks like you are getting an a very good dynamic range in your images there Valery. I notice that on the right hand edge of both images there is a strip of blur on both images which is more predominant on the second image. Is this a processing artifact or the CCD chip not sitting square to the foca...
by GeorgeIonas
Thu Dec 03, 2015 10:17 am
Forum: This is SolarChat !!
Topic: Sept 28 100mm F5 scope + corrector lens in a CaK line.
Replies: 12
Views: 463

Re: Sept 28 100mm F5 scope + corrector lens in a CaK line.

Hi Valery, I did not know that the difference would be so dramatic. In that case from your description no comparison would be required.

George
by GeorgeIonas
Thu Dec 03, 2015 7:35 am
Forum: This is SolarChat !!
Topic: Sept 28 100mm F5 scope + corrector lens in a CaK line.
Replies: 12
Views: 463

Re: Sept 28 100mm F5 scope + corrector lens in a CaK line.

Valery, do you have some images showing before and after correction?

George