Search found 1309 matches

by turfpit
Thu Dec 17, 2020 1:11 pm
Forum: Deep Sky Imaging
Topic: Please Help with Dithering
Replies: 7
Views: 268

Re: Please Help with Dithering

Scott

I have never used dithering which means these will be default values in SC 3.2.

dithering-defaults.JPG
dithering-defaults.JPG (44.19 KiB) Viewed 213 times


Hint: in any technical environment, before making changes, record values so that regression is possible.

Dave
by turfpit
Tue Dec 15, 2020 1:39 pm
Forum: General Discussions
Topic: Optimizing sharpness with SNR. DSO "lucky" imaging ?
Replies: 6
Views: 214

Re: Optimizing sharpness with SNR. DSO "lucky" imaging ?

Tim An Astrobin search for 'double lyra' yields https://www.astrobin.com/search/?q=double+lyra . One of them was Belgium. For my M42 HDR attempt, these are the FITS Liberator views (unstretched) for single frames at varying exposures. Trying to retain the Trapezium, I probably needed exposures less ...
by turfpit
Mon Dec 14, 2020 6:27 pm
Forum: General Discussions
Topic: Optimizing sharpness with SNR. DSO "lucky" imaging ?
Replies: 6
Views: 214

Re: Optimizing sharpness with SNR. DSO "lucky" imaging ?

Tim Research HDR techniques . A good land based explanation of HDR here https://astrotuna.com/category/hdr/ , courtesy of Brian (@oopfan). The following are 3 stacks generated using Astro Pixel Processor - 60x10s, 60x20s and (60x10s + 60x20s). For the 3rd image all 120 frames were loaded, calibrated...
by turfpit
Sat Dec 12, 2020 5:53 pm
Forum: Altair Cameras
Topic: GPCAM2 290C Dropping Frames
Replies: 27
Views: 3886

Re: GPCAM2 290C Dropping Frames

SharpCap and Altair Capture both have the same underlying behaviour. In that case the problem lies with a common element - hardware (PC, camera, cable, hub), software (operating system, driver, antivirus). Have you looked at https://forums.sharpcap.co.uk/viewtopic.php?f=18&t=349&p=1556#p155...
by turfpit
Fri Dec 11, 2020 10:03 pm
Forum: Altair Cameras
Topic: GPCAM2 290C Dropping Frames
Replies: 27
Views: 3886

Re: GPCAM2 290C Dropping Frames

Try working through this viewtopic.php?f=35&t=2590

Dave
by turfpit
Tue Dec 01, 2020 1:06 am
Forum: Gallery
Topic: Mosaics from Live Stack
Replies: 6
Views: 561

Re: Mosaics from Live Stack

Welcome back. All good value for 30m acquisition.

Dave
by turfpit
Tue Dec 01, 2020 1:00 am
Forum: Gallery
Topic: M42, M43 and NGC1977, the bubble (again)
Replies: 2
Views: 372

Re: M42, M43 and NGC1977, the bubble (again)

Tim

A couple of nice images. I like the depth around M43 in the M42 image.

Dave
by turfpit
Sun Nov 29, 2020 12:06 am
Forum: How do I?
Topic: Basic Debayering question
Replies: 2
Views: 128

Re: Basic Debayering question

sarg314 Consider RG GB If the processing software reads 1st row then second row the pattern is RGGB If the processing software reads 2nd row then 1st row the pattern is GBRG. This is down to the processing software. If you want to delve into this have a look at https://forums.sharpcap.co.uk/viewtopi...
by turfpit
Sun Nov 29, 2020 12:00 am
Forum: Bug Reports
Topic: SharpCap Captures Folder Taking Up Huge Amount of Space
Replies: 6
Views: 213

Re: SharpCap Captures Folder Taking Up Huge Amount of Space

js10 I have a capture laptop with a 500Gb hard drive. My processing machine is a desktop with an attached external 4Tb USB3 drive (cost around £100). When I have completed a capture session I copy the files to the 4Tb (over my network) and process them from there. That way I never work on the only c...
by turfpit
Thu Nov 19, 2020 9:09 am
Forum: Gallery
Topic: Perseus Double Cluster
Replies: 6
Views: 289

Re: Persius Double Cluster

Very good Brian.

Dave