Camera question

Use this section to discuss "standard" Baader/Coronado/ Lunt SolarView/ Daystar, etc… filters, cameras and scopes. No mods, just questions/ answers and reviews.
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Universal_Astrophotography
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Re: Camera question

Post by Universal_Astrophotography »

I have actually been looking for the ZWO ASI174MM-Cool for a while now on the used classifieds boards and eBay. It seems like the perfect camera for my setup as it will allow for reduced noise for DSOs but have the ability to fit the full disk within the camera's frame.

Unfortunately, It seems the large sensors with smaller pixels is the way things are headed for CMOS, it makes finding these or similar cameras quite difficult anymore. I am still hoping one will turn up somewhere soon, best of luck in finding these larger pixel sensors!


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Camera: ZWO ASI185MC-Cool

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Re: Camera question

Post by ffellah »

Have you tried Astromart ? Sometime these type of cameras show up, I would say infrequently, and you may have to jump on it as they can sell very quickly.

Franco


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Re: Camera question

Post by Universal_Astrophotography »

ffellah wrote: Mon Apr 11, 2022 4:02 pm Have you tried Astromart ? Sometime these type of cameras show up, I would say infrequently, and you may have to jump on it as they can sell very quickly.

Franco
These older cameras definitely seem to sell quickly if the price is right. I have tried on Astromart as well; I have "wanted" ads on Cloudy Nights, Astromart, and this forum. I am offering the original selling price (~$900 USD) but I haven't had anyone contact me about my wanted ad yet.

I have noticed others also have wanted ads for this same camera but no one has marked one as found in a long time, my offer price is significantly higher than other offers though so I am hoping someone will be willing to part with it for the original sale price.


Robotic Telescopes: Vaonis Stellina, Unistellar eVscope, and Vaonis Vespera Kickstarter Backer

Traditional Telescopes: Sky-Watcher 90mm Maksutov-Cassegrain, Lunt LS100MT

Camera: ZWO ASI185MC-Cool

Controller: ZWO ASIAIR Plus
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Re: Camera question

Post by christian viladrich »

Hello Franco,
Here is a test image taken with the ASI1600 in binned 2x2. Seeing was bad.
http://astrosurf.com/viladrich/astro/so ... -SMN35.jpg

For comparison, the acquisition with the Basler 1920-155 in much better seeing condition:
http://astrosurf.com/viladrich/astro/so ... -B1920.jpg
Processing for this last one was with more contrast.

Acquisition with the B1920-155 was at 140 fps for 1920 x 1200 pixels, i.e. 322 Mo/s
Acquisition with the ASI 1600 was at 50 fps for 2300 x 1800 pixels, i.e. 200 Mo/s. This is a bit surprising. Maybe acquition in 8-bit are actually made in 10-bit ? This would mean 260 Mos ?

In any case, the images with the ASI 1600 binned 2x2 are quite good, with very low noise level.


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Re: Camera question

Post by TareqPhoto »

christian viladrich wrote: Tue Apr 12, 2022 7:58 pm Hello Franco,
Here is a test image taken with the ASI1600 in binned 2x2. Seeing was bad.
http://astrosurf.com/viladrich/astro/so ... -SMN35.jpg

For comparison, the acquisition with the Basler 1920-155 in much better seeing condition:
http://astrosurf.com/viladrich/astro/so ... -B1920.jpg
Processing for this last one was with more contrast.

Acquisition with the B1920-155 was at 140 fps for 1920 x 1200 pixels, i.e. 322 Mo/s
Acquisition with the ASI 1600 was at 50 fps for 2300 x 1800 pixels, i.e. 200 Mo/s. This is a bit surprising. Maybe acquition in 8-bit are actually made in 10-bit ? This would mean 260 Mos ?

In any case, the images with the ASI 1600 binned 2x2 are quite good, with very low noise level.
Very nice comparison, you saved my life time :lol:

I can't imagine how much cleaner it will be if i used the new sensors, 294 and IMX571, but in all cases, the solar imaging isn't that much demanding as DSO for example or maybe planetary.


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Re: Camera question

Post by ffellah »

Thank you Christian. They both look great, interesting to see the different image scale with each camera. The results with the 1600 are really good.

Franco


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