Can anyone using the zwo533mc tell me what gain settings you use , and is the sensor size 25.4mm x25.4mm , the size I need to input into APT .
regards Dave
regards Dave
Zwo ASI 533mc settings
Moin David,
Gain 100 and 11,31 x 11,31mm.
CS Carsten
Gain 100 and 11,31 x 11,31mm.
CS Carsten
I use Gain 100 Offset 70 (unity gain), as for the sensor size, you can check zwo's page, it has all the info (11.31x11.31)
https://astronomy-imaging-camera.com/product/asi533mc-pro-color
https://astronomy-imaging-camera.com/product/asi533mc-pro-color
Carsten:
Moin David,
Gain 100 and 11,31 x 11,31mm.
CS Carsten
Michel Makhlouta:
I use Gain 100 Offset 70 (unity gain), as for the sensor size, you can check zwo's page, it has all the info (11.31x11.31)
https://astronomy-imaging-camera.com/product/asi533mc-pro-color
Thanks guys👍 Now just need the skies to clear .
Hi Dave
The settings I use with my ZWO 553 MC Pro are,
Gain for galaxies, star clusters etc. is 100 even with filters, LPRO etc.
I use a Gain for Nebula with narrowband filters at 120/125 because of the amount of light getting through the filters.
I have some image with these setting on Astrobin user name Prea.
Hope It helps
Peter
The settings I use with my ZWO 553 MC Pro are,
Gain for galaxies, star clusters etc. is 100 even with filters, LPRO etc.
I use a Gain for Nebula with narrowband filters at 120/125 because of the amount of light getting through the filters.
I have some image with these setting on Astrobin user name Prea.
Hope It helps
Peter
Helpful
Hi Dave
The settings I use with my ZWO 553 MC Pro are,
Gain for galaxies, star clusters etc. is 100 even with filters, LPRO etc.
I use a Gain for Nebula with narrowband filters at 120/125 because of the amount of light getting through the filters.
I have some image with these setting on Astrobin user name Prea.
Hope It helps
Peter
Thanks prea very helpful .
I am also using gain 100, but for offset I use 15 instead of the 70 many mention here. Reason is a very interesting thread in a german forum which I cannot find at the moment. In a nutshell it came out that already at offset 5 to 10 (at gain 100) you will not have any zero values anymore. By setting your offset too high, you are losing dynamic range.
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Björn Hoffmann:
I am also using gain 100, but for offset I use 15 instead of the 70 many mention here. Reason is a very interesting thread in a german forum which I cannot find at the moment. In a nutshell it came out that already at offset 5 to 10 (at gain 100) you will not have any zero values anymore. By setting your offset too high, you are losing dynamic range.
That is interesting bjorn if you find the post please post it.
I am using Gain 100 and offset 10 as I have analyzed the bias frames for different offset values and above like 6 or 7 there were no black pixels anymore, so no need to sacrifice dynamic range by increasing the offset any further.
I use 100 gain 20 offset.
Some great comments thanks guys , is it possible for someone to Dropbox a raw light so I can check my platesolving i use a sw200pds 920mm fl and a techno sky 70ag 350mm fl .
regards Dave
regards Dave
Björn Hoffmann:
I am also using gain 100, but for offset I use 15 instead of the 70 many mention here. Reason is a very interesting thread in a german forum which I cannot find at the moment. In a nutshell it came out that already at offset 5 to 10 (at gain 100) you will not have any zero values anymore. By setting your offset too high, you are losing dynamic range.
That is interesting bjorn if you find the post please post it.
I found it, but it's all in german. Here is the pretty long thread: https://forum.astronomie.de/threads/asi-533-mc-pro-austausch-thread.283037/
And this is the relevant post in it, where someone measured the ideal offsets for different gains:
https://forum.astronomie.de/threads/asi-533-mc-pro-austausch-thread.283037/post-1474630
Thanks Bjorn google will soon translate 😁👍
A good first light session on m27 see my latest upload , now posted thanks guys, I have now acquired an l-extreme filter too .
Björn Hoffmann:
I am also using gain 100, but for offset I use 15 instead of the 70 many mention here. Reason is a very interesting thread in a german forum which I cannot find at the moment. In a nutshell it came out that already at offset 5 to 10 (at gain 100) you will not have any zero values anymore. By setting your offset too high, you are losing dynamic range.
I've also made the experience that the native offset setting is pretty conservative. I did a quantitative analysis of dark frames for my new ASI294MM Pro where I captured 600s dark frames with unity gain using a cooling to -10C and it turned out that the offset could safely be set be lowered to 5. Common values that I've found in the web for the 294 are usually 30+.
However, I am questioning the loss of dynamic range by putting the offset too high. From what I see, the offset value translates to intensity levels through the following rule: the median dark frame value is the maximum intensity value time the offset in per mille , e.g., offset = 5 is equivalent to 65535 * 0,005 = 327 (the ASIs scale up to 16bit no matter of the A/D-converter). Assuming that we put the offset to higher values, e.g., offset = 40 which gives 2621 median dark frame intensity, the dynamic range for a 14-bit A/D is still 13,94 bits. I'd say that this isn't a game changer, isn't it?
Curious to hear your opinion.
CS!
Björn
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image taken using zwo533mc and a L Enhance 120Gain 10 offset 162 x180 sec exposure
Also try gain 0 for broadband, it lets use the full well and actually has very nice noise characteristics. Many people are discovering this about 533mc and 2600mc.
Also try gain 0 for broadband, it lets use the full well and actually has very nice noise characteristics. Many people are discovering this about 533mc and 2600mc.
That seems interesting I’d like to see the with and without for comparison
Cooling Temperature
Hello, I have an ZWO ASI 533MC, what temperature do you use generally to cool the camera ? thanks William
Discusses ZWO ASI 533MC camera settings and operational parameters.