Search found 703 matches

by rsfoto
Tue May 22, 2018 5:06 pm
Forum: This is SolarChat !!
Topic: SUN 22/5/2018
Replies: 1
Views: 13

Re: SUN 22/5/2018

Hi,

Nice and nice to see a new Spot has developed # 2710 :-)
by rsfoto
Tue May 22, 2018 1:03 pm
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 546

Re: Replacing the Rusted BF30 Filter

Hi, I just got an e-mail from Oliver Smie from Beloptik. He wrote me that using for example the Astronomik Ha filter for photography is OK but not for visual as the filter blocks only up to 1150nm and for visual is it not recommendable to use it due to the Optical Density of this filter. He also wro...
by rsfoto
Mon May 21, 2018 8:18 pm
Forum: This is SolarChat !!
Topic: Full disk Sun 20-05-2018
Replies: 4
Views: 43

Re: Full disk Sun 20-05-2018

Hi David, Thanks. I have a double stacked SM60 mounted on a Takahashi FSQ 85ED and take my images with a very old Lumenera Infinity 2-2M with the software Lucam Recorder. This software allows me to change the colouirs of my AVI's in real time and so I do not need to make 2 different exposures and th...
by rsfoto
Mon May 21, 2018 1:11 am
Forum: This is SolarChat !!
Topic: Sol 20-5-2018 ha
Replies: 4
Views: 45

Re: Sol 20-5-2018 ha

Hi,

Excellent Sun and a really beatiful Jupiter
by rsfoto
Sun May 20, 2018 10:54 pm
Forum: This is SolarChat !!
Topic: Full disk Sun 20-05-2018
Replies: 4
Views: 43

Full disk Sun 20-05-2018

Hi,

Today's Sun with good seeing like yesterday.

Best viewed as always in new tab. Thanks for looking

Mosaico_20180520.jpg
Mosaico_20180520.jpg (3.34 MiB) Viewed 43 times
by rsfoto
Sun May 20, 2018 8:06 pm
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 546

Re: Replacing the Rusted BF30 Filter

christian viladrich wrote:
Sun May 20, 2018 7:42 pm
Hello Rainer,
Can you go beyond 780 nm with your spectrograph ? 1500 nm ?
Hi Christian,

No, my Spectrograph is a poor man's LISA from Shelyak :oops:

What would I need or how does that work ?

May I ask why is over 1500nm so important ?

Rainer
by rsfoto
Sun May 20, 2018 7:17 pm
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 546

Re: Replacing the Rusted BF30 Filter

Hi, Well I warmed up my Spectrograph and measured the Original first filter towards the Sun as well as the Astronomik Ha 12nm filter which I am using now and that looks like this. Interesting are the parasite lines around 5000Å and 5200Å in the Original Coronado Filters as well as in the Astronomik ...
by rsfoto
Sun May 20, 2018 2:53 pm
Forum: This is SolarChat !!
Topic: Thermal Acclimation of My Lunt50
Replies: 26
Views: 576

Re: Thermal Acclimation of My Lunt50

Hi Mark,

Interesting and good animation.

Rainer
by rsfoto
Sun May 20, 2018 2:48 pm
Forum: This is SolarChat !!
Topic: Early doors 19/5/18
Replies: 4
Views: 43

Re: Early doors 19/5/18

Very nice images :shock:
by rsfoto
Sun May 20, 2018 3:45 am
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 546

Re: Replacing the Rusted BF30 Filter

You got me worried here. When you start replacing part without knowing the design. If you look at the blocker filter. It will be between .6nm-1nm HW. I'm petty sure its a standard coating. Well put it at 656.3nm +/-.3nm. Just the bandpass will turn back on at about 700nm on the red side and 480m on...
by rsfoto
Sun May 20, 2018 3:31 am
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 546

Re: Replacing the Rusted BF30 Filter

You got me worried here. When you start replacing part without knowing the design. If you look at the blocker filter. It will be between .6nm-1nm HW. I'm petty sure its a standard coating. Well put it at 656.3nm +/-.3nm. Just the bandpass will turn back on at about 700nm on the red side and 480m on...
by rsfoto
Sun May 20, 2018 3:21 am
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 546

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 rsfoto
Sun May 20, 2018 3:17 am
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 546

Re: Replacing the Rusted BF30 Filter

TheSkyBurner <Name>? The safety requirements for extended VISUAL solar exposure is ND5 across the full spectrum. This does not obviously apply to imaging situations. There's a copy of the ICNIRP Review in the Solar Chat Reference Library. Rainer, Hmmm, sorry to hear the Astronomik didn't fit.....bu...
by rsfoto
Sat May 19, 2018 7:59 pm
Forum: This is SolarChat !!
Topic: Full Disk 19-05-2018
Replies: 2
Views: 25

Full Disk 19-05-2018

Hi, Today's full disk without multitasking :lol: :lol: :lol: No Bagel's and no Donut's today ... As usual please open in new oven :cool: What amazes me was the very good seeing as well as the low gradient I got today. This Mosaic is already done with the new set up with 12nm Ha filter. Mosaico_20180...
by rsfoto
Sat May 19, 2018 7:48 pm
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 546

Re: Replacing the Rusted BF30 Filter

Hi, OK after finding out the 2" standadrd filters do not thread onto the nose piece what I did with my US $ 280.00 Ha 12nm filter was to take out the glass and glue it onto the front part of the original threaded holder. Below 2 images with original rust and new 12nm Ha filter. The focusing point mo...
by rsfoto
Sat May 19, 2018 7:43 pm
Forum: This is SolarChat !!
Topic: Sol 19-5-2018 Ha
Replies: 7
Views: 56

Re: Sol 19-5-2018 Ha

Hi,

Great images
by rsfoto
Sat May 19, 2018 5:25 pm
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 546

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 conversio...
by rsfoto
Sat May 19, 2018 2:17 pm
Forum: This is SolarChat !!
Topic: First worthwhile results from a high res set up
Replies: 9
Views: 191

Re: First worthwhile results from a high res set up

Great images. Nice resolution in the prominences.
by rsfoto
Sat May 19, 2018 2:13 pm
Forum: This is SolarChat !!
Topic: Full disk 18-05-2018
Replies: 6
Views: 85

Re: Full disk 18-05-2018

Thanks to both,

Donut ? better Bagel, The hole in a Donut is bigger then in a Bagel :mrgreen:

I noticed it after I had already everything shut OFF and as I was in a hurry to a party id id not open the roof again and start everything again ...

Rainer
by rsfoto
Sat May 19, 2018 12:28 am
Forum: This is SolarChat !!
Topic: Full disk 18-05-2018
Replies: 6
Views: 85

Full disk 18-05-2018

Hi, When one reaches a certain age, one should concentrate in doing just one thing at the time and not simulate that one is capable of multitasking :lol: :lol: :lol: :lol: Here today´s Full disk Sun with the missing center video :shock: I learned something else today :oops: As usual viewed in a new ...
by rsfoto
Fri May 18, 2018 5:46 pm
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 546

Re: Replacing the Rusted BF30 Filter

George, We’ve had success using the Baader 35nm Ha CCD filter as a replacement for the ITF. Just remove the old ITF, and screw the Baader onto the front of the body. Hi Ken, I found a 12nm 2" Ha filter from Astronomik in my unused filter collection. I guess I can use that one too as ERF in front of...
by rsfoto
Fri May 18, 2018 5:43 pm
Forum: This is SolarChat !!
Topic: Replacing the Rusted BF30 Filter
Replies: 37
Views: 546

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 replacemen...
by rsfoto
Fri May 18, 2018 2:38 pm
Forum: This is SolarChat !!
Topic: SM40 on Petzval62mm FD 18/5/18
Replies: 5
Views: 68

Re: SM40 on Petzval62mm FD 18/5/18

Very good image for that set up.
by rsfoto
Thu May 17, 2018 9:38 pm
Forum: This is SolarChat !!
Topic: HELP QUARK
Replies: 32
Views: 607

Re: HELP QUARK

Hi Eric and Marty, " If you haven't already, point this scope through an open window without glass in front of it. " You both made my Day :seesaw :seesaw :seesaw :seesaw :seesaw I would if I could. BTW I have shot through the window with a normal SM 40 and I see more detail in the SM 40 then in the ...
by rsfoto
Thu May 17, 2018 2:00 pm
Forum: This is SolarChat !!
Topic: HELP QUARK
Replies: 32
Views: 607

Re: HELP QUARK

Looks way off band to me Rainer Hi Mark, Me too but here in Mexico City I do not have enough sky to test it over hours as the Quark has to cool down. I will need to do this at my Observatory where I have more time but at the moment no hardware to drive my scopes. Perhaps also the conditions are not...