19th June - Some White Light Close Ups

[David Smith]

Half a chance this morning to shoot some video of the Sun. All of the images below were extracted from SER files that were shot through passing cloud / haze. These were taken using the QHY5, ND3.8 film filter, my new-to-me Baader UV IR cut filter and my Baader OIII filter. All are 60 frames stacked from 1000 in AS!2 and then sharpened in ImPPG before finalising in GIMP. Quite pleased with these as they demonstrate to me that this setup has potential.

I also shot some full disks as well, one with ND5 setup and the other using the ND3.8. Will process and post the results later.

[Stu]

Very nice shots Dave. I've not had a chance to see this AR so it's good to see a close up. Are you finding much difference with the ND3.8 film? I guess you can use shorter exposures? The UV/IR cut should sharpen things up too from what I've heard

[xtreemchaos]

great shots Dave, ND3.8 looking good, ive never use it yet, is it a lot brighter, simler to a wedge ?.thanks charl.

[David Smith]

Thanks both. Yes the ND3.8 just allows me to use the OIII filter and still use a reasonable exposure. I used to use my Baader neodymium as I did not have the UV IR but struggled to get good sharp images. Fortunately one came up on ABS the other week so i grabbed it! Looking at the results of these first tests the UV IR cut is definitely an improvement.

[Stu]

2 minutes ago, David Smith said:

Thanks both. Yes the ND3.8 just allows me to use the OIII filter and still use a reasonable exposure. I used to use my Baader neodymium as I did not have the UV IR but struggled to get good sharp images. Fortunately one came up on ABS the other week so i grabbed it! Looking at the results of these first tests the UV IR cut is definitely an improvement.

Have you considered a Continuum filter David?

[David Smith]

Indeed I have Stu, my finger is hovering over the buy button

[laudropb]

Very nice images David. Lovely sharp detail in the close ups. Looks very promising.

[Pete Presland]

Lovely white light images especially the close up.  I also use the ND3.8, but I find the no58 (green) filter better than the oiii filter.

[David Smith]

Interesting Pete, may pick a #58 before I press the trigger on a Continuum. I did try my #56 but it is not dark enough.

[cshahar]

That spot is impressive! Lovely renditions. I like the granulation as well!

-Charles

[paulastro]

Excellent images David, even more so with the poor conditions you had to contend with.

[michael.h.f.wilkinson]

Excellent detail! Lovely capture of the granulation