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Prolifics

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Posts posted by Prolifics

  1. 104581975_Firsttry.thumb.jpg.e02ed5e276c4db8e4370818103d57e1c.jpg



    60 x 60 seconds LUM
    30 x 120 Seconds Red
    30 x 120 Seconds Green
    30 x 120 Seconds Blue
    40 Darks
    40 Flats
    40 Dark/Flats

    Bortle 5/6

     

     

     

     

     

     

     

    • Like 12
  2. My first ever Narrow band image.

    30 Minutes each of 5 minute exposures HA, O3 & S2 using Hubble Palette in Pixinsight. Gain I made a mistake should have been 200 but used 75 as I reloaded Nina and forgot to change it back from defaults :)

    The 03 filter is giving me halo's on big stars. I need to find out how to fix this (Either by hardware or post processing). I have some elongated stars on 2 sides. Caused mainly by the 5 minute exposures. Tilt maybe an issue? Guiding was 0.53 RMS.

    100810340_1sttryNGC7822.thumb.jpg.525ea518b8c3607641647ad64a774595.jpg

    1131167677_try2.thumb.jpg.200b8cd643de4836ac488def38bf9228.jpg

     

    • Like 5
  3. Thanks for the info. I will try longer exposure again. Having huge problems with all these Elon Musk satellites wizzing across my frames so thats why I shortened them. :)

    I am wondering how to get more colour in photshop do I increase the saturation?

     

     

     

     

  4. Hi I have uploaded my highest scoring Lum file from a couple of nights ago. There is some funny star shaped in it especially around the edges.

    I am using A TS 107 Triplet with a 2 inch TS optics 0.79 focal reducer. EFW filterwheel and a Zwo asi1600mm pro Cmos camera.

    By using the the adapters and adding them all up I get 56mm backfocus. According to this chart from TS Optics I need an extra 1mm.

    Information from them here....

    Back Focus - distances from the T2-thread to the camera sensor

    depends on the focal length of the telescope:

    ♦ Focal Length to 350 mm .... 70 mm
    ♦ Focal Length to 420 mm .... 65 mm
    ♦ Focal Length 450-500 mm ... 61 mm
    ♦ Focal Length 510-600 mm ... 58 mm
    ♦ Focal Length 610-700 mm ... 57 mm
    ♦ Focal Length 710-790 mm ... 56 mm
    ♦ Focal Length from 800 mm .. 55 mm

    My scope is 700mm So I am rigth on the end of one of those calculations.

    Today I stripped everything down and checked everythintg. I was using a 1.2mm washer to get the extra 1mm distance but the washer was a hard plastic type and when I measured the gap it was more than 2mm. 

    I managed to find some soft type washers in my old ZWO box remove the old one and put a thinner one in which is giving me around 0.9mm gap. Giving me a total of 56.9mm. Instead of 58.1mm

    Do you think that should fix the problem? Can 1.2mm out make my stars look like this or have I got another problem. Not had chance to take the scope out to test the new configuration due to the usual clouds.

    Any help would be great. Single frame is of M3.

    Thank you for any help in advance.

     

     

     

     

    2020-05-20_00-25-06_Lum_-20.00_60.00s_0018.fits

  5. It's all looking good! I appreciate the time you have put into this.

     

    Thank you for that. It was all about producing better and better images which has happened. But perfecting each thing you do is very time consuming :) This is why this hobby is so fantastic. I need to spend more time watching whats going on rather then spend lots of time setting up and then leaving it on a plan for several hours doing nothing.

     

    David

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