Testing with the Optolong 3nm Ha, OIII and SII filters, TJ Connolly here

source:TJ Connolly (US)popularity:38Release Time:2022-07-14

Testing with the Optolong 3nm Ha, OIII and SII filters, TJ Connolly here

 

Astrophotographer: TJ Connolly (US)

Filter Type: Optolong SHO-3nm 2"

 

The first light testing -NGC7000

NGC7000 - First light with the new ZWO ASI533mm-pro with the Optolong 3nm Ha, OIII and SII filters. The images are so clean and smooth. I included a 600 second dark frame from the ASI294mm-pro and a 600 second dark frame from the ASI533mm-pro to show the low noise and no amp glow with the ASI533mm-pro.

HA - 10x300 second exposures

OIII - 10x300 second exposures

SII - 10x300 second exposures

Askar FRA400 F3.9

ZWO AM5 mount

ASIair Plus

Here are the RAW FITS frames if anyone wants to check them out. Or have a go with the data. https://drive.google.com/.../1xUt4WcFr6nauSqLcLlVieTu6QbD...

 

 

 

 

Elephant Trunk (IC396) in the SHO Palette

Elephant Trunk (IC396) in the SHO Palette. I normally get rid of the green, but I really like how the green transitions in the colors. Imaged with the new StarField Optics Géar 80 (0.8x reducer at a FL of 384mm and a Focal Ratio of f4.8 ), a ZWO ASI2600mm-pro, Optolong 3nm NB filter set, on the ZWO AM5 mount. ASIair Plus was used for image capture.

Calibrated/Stacked in Astro Pixel Processor and processed in PixInSight.

HA - 20 x 300 second exposures (Gain 100)

OIII - 20 x 300 second exposures (Gain 100)

SII - 20 x 300 second exposures (Gain 100)

 

 

 

 

More images about 3nm narrow band filters

Some more imaging with the ZWO AM5. The mount has been proven to me as reliable and consistent in the 0.6” to 0.7” total RMS. Stars are perfectly round when zoomed in on the screen. I included a picture of me standing next to the AM5, Carbon Fiber Tripod with the legs fully extended and with the StarField Optics Gèar 80 on it for a size comparison. I am 173cm tall (5’8”). I am also using the Pier Extensions with two blocks. Enjoy the processed image of M101.

Starfield Optics Gear 80

ZWO ASI2600mm-pro

Optolong Ha 3nm

ZWO LRGB filters

Ha 10 X 300 second exposures

LRGB 10 X 180 seconds each filter

ZWO AM5 and ASIair Plus

 

 

 

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