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Old 10-01-2015, 10:07 PM
Gnat (Natalie)
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Noise reduction help in night scapes

Not sure if this is the thread I post this on...
I am new to nightscapes but am becoming quite frustrated with the noise in my photos. I usually shoot in AWB Faithful.... with the in-camera NR turned off as most internet sites I have read suggest this. I am using a Canon EOS 60Da with a Samyang 14 mm f2.8 manual lens (the eclipse moon was taken with the Canon camera at prime focus on a Meade LXD55 10" SN F4). The ISO for the night scapes ranges from 1000-1200 for 20 secs. Sometimes 3200 and once 5000 for 3 secs (just to see the result) I know that the higher ISOs introduce noise.
I only have Adobe Light Room, Deep Sky Stacker and Star Trails de to process. In Light Room, I use the Luminance tab to reduce noise. Does anyone have suggestions for a program to use to reduce noise and process the photos within a limited budget? Or where I might be going wrong. Any advice would be much appreciated.
Have added some of my shots...

Last edited by Gnat; 10-01-2015 at 10:09 PM. Reason: the images uploaded but didn't attach :)
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Old 11-01-2015, 02:11 AM
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mswhin63 (Malcolm)
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Are you taking "darks" as well, or only image of the nightscapes.

I find that "Darks make a big difference to the noise level. Also the more shots taken the better the noise can be cancelled out when stacking.
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Old 11-01-2015, 08:40 AM
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iceman (Mike)
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Hi Natalie

It would be great to see some samples?

I use Topaz De-Noise plugin in Photoshop, but if you don't use photoshop, there's ones like Noise Ninja that are apparently very good.

I also use the Luminance noise reduction in Lightroom, usually set around 30-40, but for high-ISO images usually use the DeNoise plugin in PS as well.
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Old 11-01-2015, 12:54 PM
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mswhin63 (Malcolm)
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I just downloaded Topaz and Noise Ninja. Out of both, Topaz is the easiest and appears to work really well. I haven't tried it with too many example but the ones I have used it on are looking really good. Although Photoshop will become a very expensive piece of kit after a while.
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Old 11-01-2015, 08:29 PM
Gnat (Natalie)
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I shoot in RAW and JPEG. Have not taken darks yet. Will read up on it. How many do you take? As I don't have Photoshop, can I stack in Light Room?
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Old 11-01-2015, 08:55 PM
raymo
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Definitely, the more subs you can stack, the less noise you will end up with, but more importantly, if you are not taking darks then it is essential
that you enable in camera long exposure noise reduction and high ISO
noise reduction. Unless you are shooting in extremely low ambient
temperatures you need darks; whether they are taken separately, or automatically by the camera is irrelevant. The main reason that most imagers recommend taking separate darks is that it saves a lot of imaging time. Using in camera noise reduction the camera will automatically take a dark sub of the same duration as your light sub, thereby halving your available imaging time. One advantage of in camera
noise reduction is that you know that the ambient temp for the light and dark exposures will be the same.
I don't recall whether you can stack in Lightroom, but if not you can download Deep Sky Stacker. [it's freeware].
raymo

Last edited by raymo; 11-01-2015 at 08:58 PM. Reason: more text
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Old 11-01-2015, 09:45 PM
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RobF (Rob)
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Wow. Love that Milky Way over the silos shot.
Rural Australia meets astro - perfect mix.
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Old 12-01-2015, 12:05 AM
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mswhin63 (Malcolm)
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Hi Natalie, it seems you already have DSS so that is the way to combine lights and darks.

Take a look at this Video http://youtu.be/3PEFIUxpzt4?list=PLO...2UeiHkBv34YwKl at about 1:30 talks about DSS and uses darks
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Old 12-01-2015, 05:37 AM
Gnat (Natalie)
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Thank you everyone for your generous advice. I will be kept busy and hopefully see an improvement in my images.
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Old 12-01-2015, 11:27 AM
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ZeroID (Brent)
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Something else to try. Noiseware Community Edition, free for personal use.
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Old 12-01-2015, 09:03 PM
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BlackWidow (Mardy)
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Stacking

Quote:
Originally Posted by Gnat View Post
I shoot in RAW and JPEG. Have not taken darks yet. Will read up on it. How many do you take? As I don't have Photoshop, can I stack in Light Room?
You can get a plugin for Lightroom called enfuse. Their is a standalone version that is free and a plugin that works within Lightroom. Great for stacking or layering several images to get a more even exposure etc... Here is the link to the site about the plugin and links to download. The plugin for Lightroom will cost you $5 Aust and is well worth it... http://www.photographers-toolbox.com...s/lrenfuse.php

The free standalone works fine, but I like the plugin for Lightroom better..

Hope this helps.... I love your images.... Very nice!
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Old 13-01-2015, 01:21 AM
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mswhin63 (Malcolm)
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Thanks for the link Brent, seems as simple to operate as Topaz, not bad.
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