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astronobob
15-07-2020, 09:07 PM
Not sure if this shoud be in Deep Sky or not but any which ?

Bortle 2'ish skies last night '14th Jul' Rathdowney SEQld. Very Clear with approx 60-65% Humidity & the current Jetstream which I really doubt effect wide field much..

Only 6 x 30sec subs, ISO-2500
Sigma Art 20mm F/1.4 @ F/2
6D II on StarTracker

I took settings off Standard and tried the 'Detail' option,, & I find it does a better job with stars in one big way, but unfortunately impedes the stars in another way, not much noticed in the proccessed Jpg web file - so here it is !

RichardJ
15-07-2020, 09:19 PM
Hi Bob,

Lovely rich colourful image :thumbsup:

RichardJ

gregbradley
15-07-2020, 09:46 PM
Lovely image. It looks very good in the corners. Very little coma.

Greg.

astronobob
16-07-2020, 06:38 PM
Cheers Richard & Greg, it has been cropped a tad, wish I had Alt/Alt head on the track-mount to compose 2 panals squarely across.
Have another 1 or 2 to do from the night & going out again tonight. clear as SE Qld at-the-moment :thumbsup:

Derek Klepp
18-07-2020, 12:13 PM
Good one Bob my Sigma 20mm does exactly the same thing to stars (middle top).The 14mm art shows even more and is prone to stray light .
Derek

astronobob
18-07-2020, 07:48 PM
Thnx,
I decided against the 14 for $ reasons. They are both pretty good lenses tho, doubt can make a lens this wide and fast without some minor edge irregularities.
I find cropping upto 100pixles off the sides and upto 200 top and bottom - thats portrait mode !

Am currently stacking some 4-panel vertical panos from the 20mm, what a nightmare :rolleyes: Worth the experimentation at least !

rustigsmed
19-07-2020, 02:54 PM
excellent shot Bob!