Search found 856 matches

by krakatoa1883
Mon Jan 18, 2021 5:21 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Camera choice
Replies: 3
Views: 72

Re: Camera choice

Chameleon is a great camera for solar although the sensor is small. The USB 2.0 version seems now discontinued but it may still be found.

With my Lunt 50 I need to attach the camera to the T2 thread by means of a short C-T2 adapter to reach focus, don't know if needed with LS60 too.
by krakatoa1883
Tue Jan 12, 2021 4:00 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Bubbles
Replies: 7
Views: 169

Re: Bubbles

Hi Mark, it's not rust they are bubbles in the glue between the elements, the external surfaces are perfect.
by krakatoa1883
Mon Jan 11, 2021 4:39 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Bubbles
Replies: 7
Views: 169

Re: Bubbles

Thanks for your answers, I just wanted to explore a different solution than sending the item to Bresser, however I thinks that this is still the best thing to do.
by krakatoa1883
Sun Jan 10, 2021 4:43 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Bubbles
Replies: 7
Views: 169

Bubbles

After only one year of use my Lunt B1200 BF developed bubbles and other defects in the cement between the elements, they are visibile as superimposed on the solar images and are very annoying. I am very disappointed because I always treated the filter with great care and my other B600 which is four ...
by krakatoa1883
Sun Jan 03, 2021 9:13 am
Forum: This is SolarChat !!
Topic: Sol from the last days of year 2020.
Replies: 11
Views: 95

Re: Sol from the last days of year 2020.

Wonderful images, Eric, absolutely great. May you share some infos about your old Daystar filter ?
by krakatoa1883
Sun Jan 03, 2021 9:05 am
Forum: This is SolarChat !!
Topic: Full disk 02-01-2021
Replies: 9
Views: 92

Re: Full disk 02-01-2021

Great discs, Rainer, Sun is very busy in Halpha light.
by krakatoa1883
Sun Dec 20, 2020 1:34 pm
Forum: This is SolarChat !!
Topic: Saturday sunshine 19th December 2020
Replies: 12
Views: 123

Re: Saturday sunshine 19th December 2020

Lovely images, Alexandra.

I too use a Chamaleon, what's the pattern suppressor you mentioned ?
by krakatoa1883
Wed Dec 09, 2020 11:46 am
Forum: This is SolarChat !!
Topic: Today's SUN (20201208) | LUNT60 (SS/DS)
Replies: 18
Views: 409

Re: Today's SUN (20201208) | LUNT60 (SS/DS)

Great solar discs, Pedro, a striking diffrence between SS and DS images.
by krakatoa1883
Wed Dec 09, 2020 11:42 am
Forum: This is SolarChat !!
Topic: ED80: do I ever need an ERF for it?
Replies: 7
Views: 200

Re: ED80: do I ever need an ERF for it?

A full aperture ERF is not needed but a good sub-aperture ERF is absolutely necessary. Forget UV/IR cut filters as they are not effective, a H-alpha filter of the type used for deep sky imaging is the minimum requirement to avoid long term degradation of the in-built BF. A 35nm Baader filter would w...
by krakatoa1883
Wed Dec 09, 2020 8:34 am
Forum: Solar Scope Modifications
Topic: G band instead of Ca-k filter
Replies: 48
Views: 1443

Re: G band instead of Ca-k filter

Sorry for being a pain. Would this work, can't find an exact 430nm. Andover Center Wavelength 430.7+0.4/-0.0 nm Bandwidth 2.0+0.5/-0.5 nm Transmission 45% Blocking 1x10-4 avg. X-Ray to FIR Size +0/-0.25mm Thickness 9.5 +0/-nom mm I have one purchased from the Andover dealer in Italy. It works fine,...
by krakatoa1883
Wed Nov 25, 2020 8:38 pm
Forum: This is SolarChat !!
Topic: Very active Sun of Nov 25
Replies: 14
Views: 302

Re: Very active Sun of Nov 25

Thanks for your comments.

Franco, I never observed the Sun so often as during the pandemic, working at home has some advantages indeed...
by krakatoa1883
Wed Nov 25, 2020 2:57 pm
Forum: This is SolarChat !!
Topic: Very active Sun of Nov 25
Replies: 14
Views: 302

Very active Sun of Nov 25

A clear and sunny day over Milan allowed me to image our star in fair seeing conditions. How long has it been since the last time we have been able to see so much activity on the Sun ? I can't remember, it seems that centuries have passed since then :lol: But further activity is expected in the next...
by krakatoa1883
Mon Nov 23, 2020 8:38 am
Forum: This is SolarChat !!
Topic: AR2783 November 21, 2020
Replies: 10
Views: 226

Re: AR2783 November 21, 2020

Fine images indeed, Franco, your Combo works really fine.
by krakatoa1883
Mon Nov 23, 2020 8:36 am
Forum: This is SolarChat !!
Topic: Sunday Sun 22nd November 2020 - AR2783 & FD
Replies: 14
Views: 270

Re: Sunday Sun 22nd November 2020 - AR2783 & FD

Great images, Stu, excellent work.
by krakatoa1883
Mon Nov 23, 2020 8:31 am
Forum: This is SolarChat !!
Topic: Today's SUN (20201122) | New AR
Replies: 5
Views: 247

Re: Today's SUN (20201122) | New AR

Great images, Pedro, very detailed. A large spot is approaching from E limb.
by krakatoa1883
Tue Nov 10, 2020 12:28 pm
Forum: This is SolarChat !!
Topic: New groups rotating from the SE limb
Replies: 5
Views: 199

New groups rotating from the SE limb

Spotted this morning, a white facular streak and a double spot, just on the limb.
by krakatoa1883
Tue Nov 10, 2020 12:01 pm
Forum: This is SolarChat !!
Topic: h-alpha disk, November 8th, 2020
Replies: 6
Views: 196

Re: h-alpha disk, November 8th, 2020

Great disc, very well processed
by krakatoa1883
Sun Nov 08, 2020 5:17 pm
Forum: This is SolarChat !!
Topic: ZWO ASI178MM Monochrome Camera
Replies: 58
Views: 1197

Re: ZWO ASI178MM Monochrome Camera

Very good camera for solar imaging, particularly for full disc captures but nice for hires work too without the need for very slow f/ratios. I strongly suggest Firecapture for working with it, just start with the basic tools as described here https://www.youtube.com/watch?v=DJ1SpbCmM9U then graduall...
by krakatoa1883
Sun Nov 08, 2020 5:07 pm
Forum: This is SolarChat !!
Topic: Sol from the 7th of November 2020.
Replies: 6
Views: 173

Re: Sol from the 7th of November 2020.

Superb images, Eric, full of tiny details and very well processed :bow
by krakatoa1883
Sun Nov 08, 2020 5:05 pm
Forum: This is SolarChat !!
Topic: 8.11.2020 Contra-rotating on the spot.
Replies: 11
Views: 269

Re: 8.11.2020 Contra-rotating on the spot.

Many details inside, last two images are the best.
by krakatoa1883
Sun Nov 08, 2020 5:03 pm
Forum: This is SolarChat !!
Topic: 5 November images
Replies: 13
Views: 365

Re: 5 November images

Thanks again for your comments, that group is still spectacular.
by krakatoa1883
Fri Nov 06, 2020 9:50 am
Forum: This is SolarChat !!
Topic: AR27818 in H-alpha and White Light
Replies: 6
Views: 204

Re: AR27818 in H-alpha and White Light

Great images, very sharp indeed. The flare came out well.