Just set the radius large enough to remove the amp glow, but no larger. Radius: This sets the radius of the amp glow.The amp glow doesn't actually come from the exact corner of the frame, but rather slightly to the right, so this slider lets to tweak that location. X Shift: This sets the horizontal location of the amp glow.Nothing ruins your shot more than amp glow, but luckily this filter does an outstanding job at removing it. 50% would mean that it only subtracts half of the dark frame's value.Īmp Glow is the annoying green glow that eminates from the upper-left corner of a Mallincam. 100% means that the dark frame is entirely subtracted from the source video. The Dark Frame Factor slider will allow you to adjust the effectiveness of the dark frame. It will capture that frame and any non-black pixels will be subtracted from the video source as long as the filter is enabled. Wait for your camera to complete an exposure and then press the Grab Dark Frame button. To use, put the lens cap on your telescope to make everything dark. (Personally, I never use this filter since the Amp Glow filter is an easier and more effective solution.) It will eliminate hot pixels and other artifacts that are inherent to the video system. This lets you take a dark frame and subtract it from the incoming video stream. The Time Intervals option lets you tell the stack to auto-reset at fixed time intervals (useful for fork-mounted telescopes which will have field rotation over time, or when you know your scope has difficulty tracking). You should almost always leave this on and have the sensitivity set pretty high if not all the way to the maximum (to the left). The Auto-Reset on Motion option will automatically reset the stack if it detects a significant change in the image. This can work miracles on dark video signals! The Boost Gain slider brings out details in underexposed & dark images. It is used to eliminate signal noise and to boost the image without the typical pixel grain that other boosting methods (such as brightness and gamma) cause. This is a frame stacking filter that accumulates video frames over time. Let the Stack filter fix a dark image (see the samples if you don't believe me). Just remember: lower is better! A dark & clean video signal is better than a bright but noisy one. If there is grain in the image then lower it, if it looks clean after filtering then you may be able to bump it up a little more.
On a Mallincam, start with the AGC set to the 3rd or 4th tick mark. So, you should set the gain (AGC) on your camera to the lowest setting possible for each object you are viewing. You will get dramatically better images from these filters with a clean video feed.
IMPORTANT TIP: You want the video coming from your camera to be as noise-free as possible.
So, when starting to view a new celestial object follow this procedure: To get the best quality images from the Astro Filter Pack you need to have the filters in the above order, and in most cases you should be using these 4 filters together: Stack, Amp Glow, DSO Enhancer, and Noise Mask. The other filters will generally get you the results you need without the hassle of using a Dark Frame.Ĭombine the Stack, Amp Glow, DSO Enhancer, and Noise Mask for Best Results * We recommend you only use the Dark Frame filter when absolutely necessary. Below is the proper ordering (See the 'Effects in use' pane):ġ. In order for the Astro Filter Pack to work properly, you must order the filters correctly in CamTwist.
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