Sol May 19 with a Georgous Big Prom

[sheeny]

Captured these this morning.

More to follow,:).

Al.

[Matt Wastell]

Great disc! Looking forward to your 'more'!

[sheeny]

Thanks Matt.

Here's the rest.;)

Al.

[sheeny]

Last one.

Al.

[Dennis]

Simply gorgeous Al, I don’t know how much work goes into tuning these narrow band systems and the post capture processing, but the results are just fantastic.

Cheers

Dennis

[h0ughy]

awesome and inspirational!!!!!!! I have a lot to learn i caught the prom this afternoon with Al watching - was sorting through a few issues with my Lunt - dust moates and a very suspect blocking diagonal lens issue. i tried to clean it but i still have the issue, though it was imporved a bit. your shots are simply awesome!!!!

[sheeny]

Thanks guys.

Nice prom Houghy! Is that your field of view? Soooo close to a full disc in one frame!

Al.

[h0ughy]

yeah it bothers me as i thought i would have got a full frame solar disk with the dmk41. i tried a 0.5 reducer from bintel but i cant get enough inwards focus to get it to work, so i am stuck with it. here is my effort Al

[sheeny]

Looking good Dave.

Is your .5 reducer a 1 1/4" cell? If you can space it a little bit further from the camera you should get the full disc in the frame if that's the case. Try throwing it in the end of an old barlow or some thing:D. (I have about half a dozen 25mm spacers for pushing the staranalyser and 0.5 reducer around trying to optimise resolution).

Al.

[h0ughy]

well i may have spoke too soon - will try that:thanx:

[Derek Klepp]

Comprehensive Al.That big Prom lifted off while we were sleeping.Got a few shots will post in a seperate thread.

[Shiraz]

very good images Al. regards ray

[iceman]

Wow Al, that full disk shot = awesome.

[sheeny]

:thanx: guys!

Al.

[Poita]

How many frames are you stacking for these Al?

Any chance of an unprocessed single frame to see what the Raw data looks like? I'm trying to get an idea what to aim for in terms of initial capture.

[sheeny]

G'Day Peter,

My usual routine is:

1. Capture ~600 frames (DMK gain about 380 is best, but I push it higher if I need a shorter exposure to beat the seeing - the trade off is noise;))
2. Make a reference frame from the best 10 and sharpen it with wavelets.
3 Optimise.
4. Before Stacking, on the stackgraph, I trim the frames to the point of inflection on the quality graph or 150 frames which ever is least, then adjust the difference slider till the stack size is about 100 frames.
5. Stack.
6. Sharpen with wavelets and save.
7. Open in PS and adjust levels, curves and colourise.

What's a typical frame?:P I get everything from mush to reasonable detail... the only tricks to it I think is knowing when your focus is as good as it'll get (i.e. occassional sharp frames are visible and focusser about 1/2 way between full fuzzy in and full fuzzy out:P) and working out your processing to sort the good ones out of the mush...;)

Unfortunately, all my videos are archived onto DVD already, but I really don't think one frame will tell you much. If you are really interested PM me your email address and I'll send you a full video -about 750M - via YouSendIt (probably on Saturday morning when I'm on off peak bandwidth;)).
I've attached a stacked image and a stacked and sharpened image from the full disc shot. That should be more informative than a single video frame:).


Al.

PS Exposure in these two shots is as captured. I play with levels (not often on full disc shots) and curves in PS.