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Comet C/2022 EF ZTF - Feb 11, 2023
Posted: Sun Feb 12, 2023 6:14 pm
by gcisko
I took this image last night from my light polluted driveway. Not sure why it is blue instead of green, but there it is...
Telescope: Astrotech 72mm ED/ Star Adventurer mount
Camera: Sony A7
Image source: 18 images w/5 second exposure (1.5 minutes) ,
Date: 2/11/2023
Click the image or link to get the full resolution version on flickr.com
Comet C/2022 EF ZTF by
Greg Cisko, on Flickr
Re: Comet C/2022 EF ZTF - Feb 11, 2023
Posted: Sun Feb 12, 2023 11:19 pm
by OzEclipse
Hi Greg,
Nice image. My mate @scribbly had the same blue shift issue using a Canon Rp from my place, a non-light polluted location. He hasn't found the cause either.
I was shooting a few metres away from him, same window of time. I'm using a Pentax K1 which has the same Sony EXMOOR 36MPx sensor used in the Sony A7ii.
I pre-process in Lightroom, export 16 bit files, then stack and post process all in Photoshop.
Scribbly pre-processes in Lightroom, exports 16 bit files then stack in DSS and post process in Photoshop.
Joe
Re: Comet C/2022 EF ZTF - Feb 11, 2023
Posted: Tue Feb 14, 2023 6:52 am
by gcisko
OzEclipse wrote: ↑Sun Feb 12, 2023 11:19 pm
Hi Greg,
Nice image. My mate @scribbly had the same blue shift issue using a Canon Rp from my place, a non-light polluted location. He hasn't found the cause either.
I was shooting a few metres away from him, same window of time. I'm using a Pentax K1 which has the same Sony EXMOOR 36MPx sensor used in the Sony A7ii.
I pre-process in Lightroom, export 16 bit files, then stack and post process all in Photoshop.
Scribbly pre-processes in Lightroom, exports 16 bit files then stack in DSS and post process in Photoshop.
Joe
Thanks for the info. I stacked the RAW files right out of the camera with Sequator. Nothing I could do would bring out the green. I saw you got green, but it was blueish :-) Your images of the comet are awesome as your integration time is way higher than mine. My image was only 90 seconds.
Re: Comet C/2022 EF ZTF - Feb 11, 2023
Posted: Sun Feb 19, 2023 3:38 pm
by messier 111
nice , thx .
Re: Comet C/2022 EF ZTF - Feb 11, 2023
Posted: Tue Feb 21, 2023 4:35 pm
by Makuser
Hello Greg. A very nice Comet C/2022 EF image from you using your Sony ILCE-7 camera. Excellent contrast and the head and tail are just dazzling in this capture Greg so thanks for sharing this view with us on here.