Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Flats with Ha Filter question

  • Please log in to reply
2 replies to this topic

#1 birddog99

birddog99

    Vostok 1

  • -----
  • topic starter
  • Posts: 134
  • Joined: 21 Aug 2017
  • Loc: Houston, Texas

Posted 21 April 2019 - 09:37 AM

Do I leave the Ha filter in place while shooting the flats for my Ha imaging session? And should I expect the flats to be reddish due to the filter. 



#2 gezak22

gezak22

    Mercury-Atlas

  • *****
  • Posts: 2922
  • Joined: 15 Aug 2004
  • Loc: On far side of moon. Send help.

Posted 21 April 2019 - 10:02 AM

Yes, and yes. For shooting flats, you don't even want to change focus position.



#3 birddog99

birddog99

    Vostok 1

  • -----
  • topic starter
  • Posts: 134
  • Joined: 21 Aug 2017
  • Loc: Houston, Texas

Posted 21 April 2019 - 11:05 AM

Thank you for the quick reply. Been doing this for more than 2 years and finally broke down an got a Spike a Flats panel. Didn't do flats before, but realize to make that step up flats will be a must. I noted that the AV-Flats setting in camera control Backyard EOS doesn't work. I had to use 2 second exposures(bulb) to bring the red portion of the histogram to 1/2 in BYE. Just about to put everything into DSS and see how it turns out.


  • bobzeq25 likes this


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics