Thread: HMV 905 Project
View Single Post
Old 10th Nov 2018, 11:03 pm   #177
peter_scott
Dekatron
 
peter_scott's Avatar
 
Join Date: May 2003
Location: Edinburgh, UK.
Posts: 3,273
Default Re: HMV 905 Project

Quote:
Originally Posted by peter_scott View Post
This might be a peculiarity of the 905 but it might also relate to the Aurora. I found a similar effect with my Sony 9-90.

Peter
I took those photos some months ago and checking them they had different shutter speeds although both still grabbing full frames so I thought I'd better check with identical settings. I still found the same result so I then tried adjusting the Sony 9-90 frame hold and found that I could get good Aurora interlacing. Here's the result. The first image is Aurora and the second is Graphics. Both are without equalising pulses. If you hold a magnifying glass up to the screen you can adjust the frame hold for best results.

Peter
Attached Thumbnails
Click image for larger version

Name:	Sony Aurora 1.6 secs.jpg
Views:	95
Size:	79.9 KB
ID:	172601   Click image for larger version

Name:	SonyGraphics 1.6 secs.jpg
Views:	93
Size:	79.1 KB
ID:	172602  

Last edited by peter_scott; 10th Nov 2018 at 11:20 pm.
peter_scott is offline