SH2-132, The Lion N...
 
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June 24 2026 APP 2.0.0-beta46 has been released !

Improved internal memory configuration (lower ! memory usage), fixed beta45 startup issue, fixed Set Save Directory & 2-panel mosaics.

May 27 2026 APP 2.0.0-beta45 has been released !

Fully Multi-Threaded LNC, many improvements for the registration engine, platform upgrade, and further tuning of internal memory consumption and memory release back to OS.

Apr 14 2026: Google Pay, Apple Pay & WeChat Pay added as payment options

Update on the 2.0.0 release & the full manual

We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.

Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.

 

SH2-132, The Lion Nebula

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 Davm
(@davm)
Red Giant
Joined: 9 years ago
Posts: 38
Topic starter  

SH2-132, The Lion Nebula with Optolong L-eNhance filter.

7,5 hours  over 2 nights, 10 Nov and 12 Nov, (full moon!)

Standard APP process with Adaptive Airy Disc algorithm.

Light pollution removed and tweaked with Photoshop Action set.

Will spend another couple of hours later without the filter, gathering RGB to improve the star colour. Will also try extracting the Ha - OIII aswell.

Leeuwnevel Optolong 7,5 uur

TS 80mm f6 apo refractor

ZWO ASI 071 MC Pro + Optolong L-eNhance filter

AVX

 

75x 360 sec

Total 7,5 hours

 

20 darks

50 flats

50 dark flats

 

Regards

Dave

 



   
artem, Tony, steve and 1 people reacted
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(@jan-willem)
Neutron Star
Joined: 9 years ago
Posts: 111
 

Hi Dave,

 

Very nice image!! Can you tell me what settings you did use with the asi071? Gain / offset?

Clear skies Jan-Willem



   
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 Davm
(@davm)
Red Giant
Joined: 9 years ago
Posts: 38
Topic starter  

Hi Jan-Willem, for this object I used 300 sec exposures the first session and 360 sec for the second session because there wasn't much to see in the subs. I used gain 150 and I always leave offset at the default 65  (according to ZWO, the best setting)

I haven't been using the 071 for very long so I have been trying different gain settings with different conditions and setup. I figured using the Optolong I would need higher gain and longer exposures, it's a dim target.

Without the filter I would use 90 gain (unity) or 135 or there about.

Next on the list is an HaRGB merge for the star colour. (once the moon has gone!)

hope this helps

Regards Dave



   
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(@jan-willem)
Neutron Star
Joined: 9 years ago
Posts: 111
 

Hi Dave,

 

Thanks for the information.

You're picture looks very nice, keep them coming ;).

 

Clear skies Jan-Willem



   
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 Davm
(@davm)
Red Giant
Joined: 9 years ago
Posts: 38
Topic starter  

Thanks Jan-Willem, clear skies to you too!

Dave



   
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