Drizzled.. Shot the Orion constellation last night under pretty much a full Moon with a Sony A7S and Sigma 35mm lens. Imaging conditions were fair; thin cloud on the horizon, no wind...

bwana Loc: Bergen, Alberta, Canada

Shot the Orion constellation last night under pretty much a full Moon with a Sony A7S and Sigma 35mm lens. Imaging conditions were fair; thin cloud on the horizon, no wind and -15C.

At 49.5 arcsec/pixel the image was massively undersampled and an excellent candidate for NASA’s Drizzle technology. With 148 subs a 4x Drizzle was feasible.

Decided to Drizzle two areas.

All postprocessing and Drizzling was done in PixInsight.

Enjoy!

bwa

P.S.: A reasonable explanation of Drizzling can be found at: http://deepskystacker.free.fr/english/technical.htm#Drizzle
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The Orion Constellation (slightly cropped)(A7S,35mm,f4,30sec,ISO200):

(Download)

Meissa Star Cluster(A7S,35mm,f4,148x30sec,ISO200)_4xDrizzled_MT:

(Download)

Orion Nebula(M42)(A7S,35mm,f4,148x30sec,ISO200)_4xDrizzled_MT:

(Download)

SonnyE Loc: Communist California, USA

Nice Brian!
Tough target with that lens, but you got a far better focus than I could have.

Drizzled... Hmm... I'm beginning to believe the Moon walk was faked.

Hubble Pallets, Drizzling NASA's.

Speaking of Drizzled, It drizzled South of me. But none here.
Just hellacious winds. At one point I could have sworn we had a Tornado going by. Wife said, STOP the Video!
But by the time I was able to, it was gone.
It's still windy enough to blow the underwear off a witch.
But it's supposed to be nice later this week. Till then, I'm playing inside the house.

DickC Loc: NE Washington state

Very nice photo that first one is the Orion I expect to see when I look up, so much of these magnified shots don't look like it, thanks for sharing!!

bwana Loc: Bergen, Alberta, Canada

DickC wrote:

Very nice photo that first one is the Orion I expect to see when I look up, so much of these magnified shots don't look like it, thanks for sharing!!

Thanks.

Yup, a 35mm lens on a full frame camera is quite close to what the human eye sees.

bwa

DickC Loc: NE Washington state

bwana wrote:

Thanks.

Yup, a 35mm lens on a full frame camera is quite close to what the human eye sees.

bwa

Now you've educated me, thanks!

nikonshooter Loc: Spartanburg, South Carolina

I have not used DSS since using Sequence Generator Pro but I did like their "drizzle" algorithm though it taxed my CPU. I used this for widefield undersampled images as in the ASI1600MM-C camera on at SV70T (336 mm) with reducer. I will vouch for the "drizzle" process in SGP. It does an awesome job. It would be pointless to use in oversampled cases, IMHO as there is really no loss in resolution - just unused pixels.

bwana Loc: Bergen, Alberta, Canada

nikonshooter wrote:

I have not used DSS since using Sequence Generator Pro but I did like their "drizzle" algorithm though it taxed my CPU. I used this for widefield undersampled images as in the ASI1600MM-C camera on at SV70T (336 mm) with reducer. I will vouch for the "drizzle" process in SGP. It does an awesome job. It would be pointless to use in oversampled cases, IMHO as there is really no loss in resolution - just unused pixels.

Drizzling has its place but, as you say, only of any real value with lots of undersampled subs. A recent 4x Drizzled image below.

bwa

LeoTrio(A7 III,400mm,f6.3,179x30sec,ISO6400)_4xDrizzled_MStretch_ABE_MT

(Download)