Search found 55 matches

by Benni
Wed Sep 23, 2020 5:45 am
Forum: Feature Requests
Topic: Adaptive optics device
Replies: 4
Views: 3195

Re: Adaptive optics device

I have an sx-ao, which is compatible with all devices. Some weeks ago, my usb cable for that failed and I had to guide with the mount. Significantly less round stars due to my mount being of old age.... So I will not try to go without the ao again if I do not have to. From a practical side, I can sa...
by Benni
Thu Sep 17, 2020 7:52 pm
Forum: Deepsky Images
Topic: Lagoon nebula, Asi 1600 mm-cool
Replies: 0
Views: 33

Lagoon nebula, Asi 1600 mm-cool

Lagoon Nebula, TS 65/420, H-eq5 mount, Sesto Senso focuser, Starlight Xpress Active optics, ASI 290 mini guider, ASI EFW Filter wheel, R,G,B, Ha Baader Filters, ASI 1600 mm-cool, pictures taken at -20°C https://naturfotografen-forum.de/data/o/349/1745115/image::Benjamin_Schulz_astrofotographie.jpg
by Benni
Thu Sep 17, 2020 7:43 pm
Forum: Cameras
Topic: you forgot to write that one should regularly grease the O rings in the manual
Replies: 1
Views: 65

you forgot to write that one should regularly grease the O rings in the manual

Hi there, in this manual https://astronomy-imaging-camera.com/manuals/How_to_clean_ASI_camera_and_redry_the_desiccant.pdf About cleaning the camera and redrying the desiccant, you forgot an important point: There is a rubber O ring in these cameras. I have an underwater camera housing. These have si...
by Benni
Tue Feb 25, 2020 1:28 am
Forum: Deepsky Images
Topic: The Crescent Nebula in Ha and OIII
Replies: 2
Views: 5407

Re: The Crescent Nebula in Ha and OIII

its not only the crescent nebula. You also have pictured the soap bubble nebula. Look to the right above the crescend, in a diagonal line from the crescent to the edge of the image... the soap bubble nebula was only recently discovered by amateurs...
by Benni
Tue Feb 25, 2020 1:25 am
Forum: Deepsky Images
Topic: ngc 1499, asi 1600mm-cool
Replies: 0
Views: 5623

ngc 1499, asi 1600mm-cool

ngc 1499, asi 1600mm-cool

Image
by Benni
Tue Feb 25, 2020 1:18 am
Forum: Cameras
Topic: is the tutorial about gain values valid for most apertures?
Replies: 2
Views: 2985

Re: is the tutorial about gain values valid for most apertures?

Hi, the thing is that the asi 1600 has such a low noise level that one can make short exposures even with nebulas. My question was the following If I remember correctly, you have shown in your link with an f4 scope, and a stack of the crab nebula where each image has 10 seconds exposure time, that y...
by Benni
Tue Feb 25, 2020 12:58 am
Forum: Cameras
Topic: spacing requirement for a focal reducer
Replies: 11
Views: 7543

Re: spacing requirement for a focal reducer

I guess you should buy a dedicated flat field scope. And even then, you will see image errors with the ASI. Unfortunately, most of the telescope/reducer systems were calculated for old noisy sensors with large pixels... A telescope with a suitable flat field for new cmos cameras will cost money. For...
by Benni
Sat Feb 08, 2020 11:44 pm
Forum: Cameras
Topic: is the tutorial about gain values valid for most apertures?
Replies: 2
Views: 2985

is the tutorial about gain values valid for most apertures?

Hi, you have here made a tutorial which explains what gain value one should choose to get the highest snr from the asi 1600 and other cameras: https://astronomy-imaging-camera.com/tutorials/cooled-asi-camera-setting-in-ascom-driver.html For this tutorial, you have used an f4 telescope. You concluded...
by Benni
Sat Oct 12, 2019 1:53 am
Forum: SDK & Driver
Topic: driver problem
Replies: 14
Views: 5227

Re: driver problem

I think, well my thinkpad, officially, it does not support windows 7. But I ran Windows 7 nevertheless on it. Then I had the problem with the wire. This could have been be a small incompatibility with the chipset. Or something with the driver. I do not know. It appeared to occur mostly during winter...
by Benni
Fri Oct 11, 2019 6:48 pm
Forum: Deepsky Images
Topic: NGC 2239
Replies: 0
Views: 7003

NGC 2239

NGC 2239, ASI 1600 mm-c https://scontent-frx5-1.xx.fbcdn.net/v/t1.0-9/53760975_1886461461477398_5522706808780619776_o.jpg?_nc_cat=109&_nc_oc=AQmJrgbZtPgVuuGICC79ybF3p1zD56_qu5wfoZcph4x6W9qkNfM6P2W3ax1cf0oo25AyzxfetDQCyilgZIrE7OzD&_nc_ht=scontent-frx5-1.xx&oh=a8fd548cf990d63c5b6042b288840498&oe=5E2E6...