LS60THa/B1200 Cerevolo 8" F5 MN Orion 11 SCT Tak EM200, Meade 6" F5 Newt, Starblast 4.5", ETX 90 C6 SCT, Meade 90 mm F9 refractor Meade 10"SN Canon T3, Mallincam Extreme
Nytecam 51N 0.1W Meade 30cm LX200 astrograph+C8+Ha+CaK PSTs+spectrographs SX M9+Lodestar-C+M CCDs/Canon 1100D DSLR My Meade astrograph-colour deepsky My supernova discovery My dome build/spectroscopes/DSO images/Lodestar colour images & videos
Jimmy Celestron 1100 CPC f/10 SCT Celestron 150mm f/8 Refractor on CG-5 mount Celestron 130mm f/5 Newtonian on Lxd55 mount Orion 120mm f/5 Refractor Meade 80mm f/11 Refractor Orion Short Tube 80mm f/5 Refractor Lunt 60mm double stack on IOptron Coronado PST double stack on IOptron mount Mallincam Xtreme, Mallincam SSI, Samsung 2000, Celestron Skyris & Meade DSI II color cameras
14" Meade LX850 80mm Meade 6000 ED APO 90mm Meade ETX 60mm Focal (First Telescope) Orion MiniGiant 9x63 Mallincam Xtreme EXview HAD Canon 5D Mark II Canon 100-400mm f/4.5-5.6L Canon 24-105mm f/4L
Quote:Thanks to this thread, I downloaded the control program and tried it with my extreme last night. I am very favorably impressed. I tried out the amp glow reducing part and found it very effective. I like that you can put things like time and camera stamps on the images and also that you can have a lot more text on the image if you want than with the prior control program I was using. Very easy to use, lots of great extra features over what I had been working with.
Thank You, Matt - Astro-Video Systems http://www.astro-video.com/ Home of the NO AMP-GLOW Astro Video Cams
Quote:I don't think there is any conspiracy to "conceal" amp glow from Mallincams. Most people ignore it as it is up in the left corner and well controlled by cooling. My old Canon 300D had horrendous readout noise but it was easily eliminated by dark frame subtraction. If you examine the images I posted in this thread you can see the amount of amp glow I get with a Mallincam Extreme with the cooler on full. I did no amp glow compensation nor dark frame subtraction and amp glow has to be searched for. In the old story of the emperor has no clothes in this case he is fully dressed.
Quote:And to add to what Dwight said ...Mallincams have changed over time, the older models did indeed have a bit more amp glow (at the same integration/exposure level) than newer models.One thing that complicates things when discussing the amount of amp glow potentially seen is that later model Mallincams have extended integration/exposure levels (which can increase amp glow) but they also have improved cooling capabilities (which reduces amp glow). So it really depends on settings and how the camera is being used.Sensor selection also affects the amount of amp glow seen ... the optional EXView HAD sensors are even more sensitive and therefore show a bit more amp glow.
Quote:Check the images I have posted in the image gallery. The ones here in this thread had a lot of vignetting that I used the software to remove and thusly clipped the black level as I described in the first post in the thread. What I liked about the Miloslick software is that I could get rid of it and put up an image without it showing.
Quote:Matt,Nothing in my comments had anything to do with the histogram or black levels. Check the posting times, I never saw your earlier post about clipped levels, I was just adding to what Dwight said earlier about Mallincam amp glow .It is however pretty interesting to see a histogram like that. It's certainly not representative of the raw un processed image from any video camera through a frame grabber.
Quote:Forgive my naive question as a non-Mallincam owner, does the Mallincam HAVE amp glow ? Everywhere I read about it I could only see praise and superlatives, not a word of amp glow. Now here comes a piece of software that eliminates it that must not be spoken???
Quote:Once asked the maker of hi-end astro CCD cams why no videocams for DSO work and he said "amp glow - why 'stack' video frames via sens-up, each with its amp glow, when a single CCD cam exposure of equal [or longer duration] has no amp glow 'cos the amplifier is switched off during the exposure" !