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BlockHead
About
- Username
- BlockHead
- Joined
- Visits
- 257
- Last Active
- Roles
- Member, Administrator
Comments
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Steve, If you have matching darks for light frames, you simply use those dark frames. No bias is involved. There are only two reasons to use a bias. 1. Scaling Master Dark Frames (you are not doing this).2. Calibrating Flat Field images So the bia…
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Yes, the Download option will allow you to do this.Thanks!-the Blockhead
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Whew!I did lose my audio... so I just narrated the last bit instead of doing it over. Nothing critical really.-the Blockhead
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Whoah...OK..I will look into this!1 minutes delay?? What the heck...
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This is normal. Typically you crop these out because even if you could some how adjust things- the signal to noise will be different in these regions since you do not have all frames contributing. There is a special case where you *do* have enough i…
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Thank you! (darn it!!)I think it is fixed now...please confirm...Thanks,-the Blockhead
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NB is still pending item for me... It is my kryptonite... this is my upcoming emphasis...-the Blockhead
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Yes...true enough. You can also "lose" things by placing (or misplacing them) on multiple Workspaces.-the Blockhead
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Hi Grigory, I want to be straight-up honest here- I really do not know! This simply isn't something I have experience with. The L-Extreme I assume will give you a narrow-band image. But if you let the light come through with the L-Pro (which is ever…
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Thank you.Fixed!-the Blockhead
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Sounds like one of those graphic issues. The short answer is I do not know. You can try to close all top-level windows...and then cascade and see if that does anything.-the Blockhead
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Hi Shawn, This is what Hartmut wrote back to me... Hello Adam, You discovered a real crazy error. The problem is with the loop variable (in the case it was i) for (var i in data.ellipsoids) { data.ellipsoids[i].draw (g); } Ch…
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oooooohI just looked at the code. I think there is an accidental space in there! See the attached picture. If you want, you can edit the code (delete the space..I think it should be:data.ellipsoids[i].draw(g); Let me know if I am correct!You might …
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Hi Shawn, Hmm... I am not certain. I have 1.7.2 and I made selections...of each kind of mask...and it outputted everything without issue. So I cannot reproduced this on my end. Perhaps send a note to Harmut, the developer, at Hartmut.bornemann@t-…
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There are some graphic cards and resolution issues that PixInsight will not accommodate. Most are known issues and supporting all the various things is apparently difficult. If the Cascade windows (fit) under the WIndows Menu doesn't do it...I am af…
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We spoke on the phone, but to me this looks like classic scattered light in the optics when generating the flat field images. The bright inner spot is due to cylindrical scattering and the fact the optics are a newtonian telescope with the flat pan…
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Generally properly calibrated flats will not have an offending pedestal that causes them not to work.Thus, the offender isn't the flats or something about their brightness- it is the biases/darks that are the problem. Flats are supposed to character…
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Yes... and if you can get a 2 second exposure... you might be able to avoid some other common pitfalls! Thank you for following up. I really thought *I* had done something wrong since the results I got on my end looked good... because I could not re…
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Yeah... a DSLR will simply have limitations. I have never taken a DSLR image of M51 that looks this good...nice job. Beating the readnoise by maybe doing longer exposures (since the sky was dark) could help. But then acquisition becomes an issue if…
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I have a little more information on something I found.Some cameras, potentially like your model, do not behave well will very short exposures. This is from Bernd's Calibration Guide: "Please note: The bias frames of cameras with a Panasonic MN 3423…