Search found 37 matches

by s3igell
Sun Jul 29, 2018 5:46 pm
Forum: ASIAIR
Topic: Getting Started...
Replies: 10
Views: 3565

Re: Getting Started...

"White Disk" - means that you are over-exposing Jupiter. Jupiter is BRIGHT - because it is just past Opposition. Work to backdown the Exposure from 20ms to 10-5ms (using a DSLR we usually are shooting 1/120th-1/250th second to get a decent exposure). Also ensure the Gain is at a reasonable 100-200 l...
by s3igell
Tue Jul 24, 2018 11:57 am
Forum: Feature Requests
Topic: more usb ports on the zwo camera
Replies: 3
Views: 1926

Re: more usb ports on the zwo camera

Most Imagers should consider mounting a Powered USB3 Hub directly on the Mount. (It allows for all USB Cables to be shorter and centralized; then a single USB3 Cable and one Power Cable to be run from the Mount down to the Laptop.) So much of the Electronics on an Imaging Rig is now USB-Powered that...
by s3igell
Sat Jun 02, 2018 6:09 am
Forum: Cameras
Topic: Should I be getting a higher frame rate?
Replies: 6
Views: 2067

Re: Should I be getting a higher frame rate?

Do the Math...
You are getting every bit of USB2 throughput - and then some...

1280*960*3*8*18= ~506Mbit
by s3igell
Sat May 19, 2018 9:07 pm
Forum: Cameras
Topic: cooler not cooling to -20
Replies: 3
Views: 1091

Re: cooler not cooling to -20

What was the Ambient Temp while you were running this Imaging Session?? Even the 1600MM-Pro's 2-stage TEC is only capable of -40-45*C Relative cooling. This means that if the Ambient Temp was anywhere near +20*C (68*F), then your Cooling was performing up to expectations. And if it was Humid, like y...
by s3igell
Tue May 08, 2018 1:35 pm
Forum: Cameras
Topic: Two problems
Replies: 18
Views: 4657

Re: Two problems

This issue sounds like saturation of something in the USB3 connection chain - a low-quality cable or a Hub or Host Port that cannot keep-up with the volume of data generated by the ASI Cameras. Try to reduce the USB3 Bandwidth. APT should have a setting that allows you to reduce the ASI Bandwidth - ...
by s3igell
Tue May 01, 2018 12:04 pm
Forum: SDK & Driver
Topic: Drivers Installer - Destination Folder Browse Disabled
Replies: 1
Views: 1066

Drivers Installer - Destination Folder Browse Disabled

For ZWO ASI Cameras Driver v3.0.0.3 Setup, the Destination Folder Browse function and Folder field are both Disabled (although properly identifying the current location). Is there a reason that User is not allowed to manage WHERE these Driver Files are to be Installed??
by s3igell
Thu Apr 26, 2018 8:25 pm
Forum: Cameras
Topic: POWER SUPPLY CONNECTOR for ASI 1600 MM PRO
Replies: 5
Views: 2259

Re: POWER SUPPLY CONNECTOR for ASI 1600 MM PRO

Yes, most TECs are Power-tolerant (but Power-hungry). Assuming running at 50% Power to effect a decent delta-T during Summer Imaging, the TEC will draw 1.5A @ 12V for 18W. If there is a Voltage Drop due to Undersized Wire of 1.5V over 10ft, then to serve that 18W power-level requires 1.7A. This is n...
by s3igell
Thu Apr 26, 2018 7:16 pm
Forum: Cameras
Topic: Alimentation cable
Replies: 2
Views: 906

Re: Alimentation cable

Power Cable is 5.5mm x 2.1mm with Positive center pin.

You will want "heavy-duty" (22-16ga) wire, as you will be running a good portion of 3 Amps along 5-10ft of wire and will see significant DC Voltage Drop with thinner wire.
by s3igell
Fri Apr 20, 2018 11:24 am
Forum: Cameras
Topic: POWER SUPPLY CONNECTOR for ASI 1600 MM PRO
Replies: 5
Views: 2259

Re: POWER SUPPLY CONNECTOR for ASI 1600 MM PRO

You will want to make sure that you find an Extension Cable which uses Heavy Gauge Wire (18-22), as many of the Cables on Amazon and eBay use much Thinner 24-28 Gauge Wire. The issue is Voltage Drop that occurs over lengths of skinny wire (0.61V Drop over 10ft for 20ga wire; 1.54V Drop for 24ga wire...
by s3igell
Fri Apr 20, 2018 11:00 am
Forum: Cameras
Topic: How do I prevent halo around stars?
Replies: 5
Views: 1799

Re: How do I prevent halo around stars?

1) Check that you mounted the Filters into the Wheel with the "Shiny Side" pointing toward the Scope (not the Camera). 2) Check Focus on each Filter (don't assume all Filters are Parfocal) 3) Check on Forums with Skywatcher users to see if your specific Flattener+Scope combo is known to cause Halos ...