View Single Post
  #1  
Old 03-02-2019, 08:19 PM
mynameiscd's Avatar
mynameiscd (Andy)
Registered User

mynameiscd is offline
 
Join Date: Jan 2017
Location: Langkoop, Victoria
Posts: 457
NGC 2264 stetched to the limit

I think I've found the limit of my camera.
I've taken this over a few nights for a total of 3.5 hours and had to stretch and stretch until I can see the nebula but start to see strange artifacts like bars in my images.
After a bit of processing like saturation etc the bars are a yellow orange colour.
At first i thought it was from a mistake I made in DSS but after looking at individual subs which are over stretched and you can see them as well. I had a look at old data and after stetching them to the max you can see the horizontal stripes through each image.
I've come to the conclusion that I'm looking at the sensor and you cant squeeze blood out of a stone!
I think with the 450d I have to try brighter objects or get guiding happening and try longer subs or go down the rabbit hole and upgrade.
Anyway heres the image.
60×60sec 400iso
60x60sec 800iso
60x90sec 800iso
Darks, flats, and bias subtracted
Stacked in DSS
Overstretched in PS

Cheers
Andy
Attached Thumbnails
Click for full-size image (Cone-Nebula-001.jpg)
178.5 KB113 views
Reply With Quote