Search found 18 matches

by davebl
Fri Mar 22, 2019 7:19 am
Forum: Deepsky Images
Topic: IC434
Replies: 0
Views: 3996

IC434

Horsehead Nebula ZWO ASI294MC Pro Takahashi E160 120 x 60 sec

https://www.astrobin.com/394073/B/?nc=user

Dave
by davebl
Fri Mar 22, 2019 7:14 am
Forum: Accessories
Topic: New Narrowband Filers
Replies: 2
Views: 1282

Re: New Narrowband Filers

By the way, I am using the ASI1600MM Cool w/ 31mm filters.

https://www.flickr.com/photos/79487516@ ... ed-public/

Dave
by davebl
Fri Mar 22, 2019 4:16 am
Forum: Accessories
Topic: New Narrowband Filers
Replies: 2
Views: 1282

New Narrowband Filers

I just purchased a set of the new narrowband filters in hopes of reducing the halos around bright stars. I'm happy to say that the H Alpha and SII filters work really good. A real improvement. Unfortunately, the OIII produces awful halos. The OIII from my original set works quite well, so between th...
by davebl
Sun Jul 22, 2018 9:44 pm
Forum: Cameras
Topic: Any fix for amp glow ASI183MC
Replies: 17
Views: 6855

Re: Any fix for amp glow ASI183MC

Here's the same image without the dark subtracted. It seems that the darks don't do a lot to hide the amp glow. My gain is set to 0.
Dave
by davebl
Sun Jul 22, 2018 9:41 pm
Forum: Cameras
Topic: Any fix for amp glow ASI183MC
Replies: 17
Views: 6855

Re: Any fix for amp glow ASI183MC

M8_120S_Sm2.jpg I have the Mono version of this camera and I found that lowering the gain and using shorter exposures seem to help. I'm still experimenting, but my skies are filled with smoke right now, so I'm on hold. I'm attaching a 120 second exposure in H Alpha, single frame with dark subtracte...
by davebl
Sun Jul 22, 2018 6:38 pm
Forum: Deepsky Images
Topic: Pelicam w/ASI183MM Pro
Replies: 0
Views: 1456

Pelicam w/ASI183MM Pro

Taken a few weeks ago with a Takahashi E160 @ f3.3, H Alpha 300 Seconds x 5
Dave
by davebl
Sun Dec 17, 2017 6:41 am
Forum: Accessories
Topic: Serious Flat Frame issues - ASI1600MM-C - What am I doing wr
Replies: 31
Views: 10865

Re: Serious Flat Frame issues - ASI1600MM-C - What am I doin

I have the same problem with the 31mm filters. Are you making masks for them as well? If so, how do I get some.
Dave
by davebl
Sun Nov 26, 2017 6:29 pm
Forum: Cameras
Topic: Halo / reflexions around bright stars ASI 1600 MMC
Replies: 24
Views: 7532

Re: Halo / reflexions around bright stars ASI 1600 MMC

Hey Stephen,

I just bought a used QHY 9s. I should have it by the end of the week.
Dave
by davebl
Wed Nov 15, 2017 4:24 pm
Forum: Cameras
Topic: Halo / reflexions around bright stars ASI 1600 MMC
Replies: 24
Views: 7532

Re: Halo / reflexions around bright stars ASI 1600 MMC

[/quote]Be careful. It's easy to remove the dark grey facing, but cover glass is fixed. I did not dare remove it (I don't want to destroy the cam :-))[/quote] Thanks for the tip. I will check it out and let you know. Which version of the camera do you have? I have what I think is ver. 3 with the des...
by davebl
Wed Nov 15, 2017 7:51 am
Forum: Cameras
Topic: Halo / reflexions around bright stars ASI 1600 MMC
Replies: 24
Views: 7532

Re: Halo / reflexions around bright stars ASI 1600 MMC

Thanks for the link Stephen. I noticed he is having multiple reflections and using Baader filters. I'm tempted to remove the cover glass and try that when it clears up here.
Dave