| Author |
Message |
bachiano
Joined: 13 Mar 2006
Posts: 163
|
| Posted: Fri Feb 24, 2012 2:29 am Post subject: scheimpflug G70 |
|
|
Is there anyway to turn off Blue defocus when doing scheimpflug using the H pattern on the g70?
I did the scheimpflug with the ME pattern within MG focus because I could not find a way to turn defocus off.
|
|
| Back to top |
|
 |
tanwn
Joined: 26 Dec 2006
Posts: 104
|
| Posted: Fri Feb 24, 2012 3:23 am Post subject: |
|
|
|
say your defocus blue is -5, just compensate back by +5. The slight defocussing shouldn't affect your scheimflug much by the way.Anyway you need a very slight defocus blue 3-5% to achieve uniformity of grey scale.
|
|
| Back to top |
|
|
bachiano
Joined: 13 Mar 2006
Posts: 163
|
| Posted: Fri Feb 24, 2012 12:18 pm Post subject: |
|
|
| tanwn wrote: | | say your defocus blue is -5, just compensate back by +5. The slight defocussing shouldn't affect your scheimflug much by the way.Anyway you need a very slight defocus blue 3-5% to achieve uniformity of grey scale. |
Where do you go to change the defocus setting?
Thanks
|
|
| Back to top |
|
|
tanwn
Joined: 26 Dec 2006
Posts: 104
|
| Posted: Fri Feb 24, 2012 12:55 pm Post subject: |
|
|
|
You need to go into service menu and press MG focus button.
|
|
| Back to top |
|
|
bachiano
Joined: 13 Mar 2006
Posts: 163
|
| Posted: Fri Feb 24, 2012 4:09 pm Post subject: |
|
|
my defocus was at 144 vs focus at 128.
What is the default defocus for the g70?
|
|
| Back to top |
|
|
bachiano
Joined: 13 Mar 2006
Posts: 163
|
| Posted: Fri Feb 24, 2012 4:17 pm Post subject: |
|
|
ok - never mind - I found it.
+15 at 31.5 kHs
|
|
| Back to top |
|
|
AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
|
| Posted: Sat Feb 25, 2012 1:25 am Post subject: |
|
|
| bachiano wrote: | my defocus was at 144 vs focus at 128.
What is the default defocus for the g70? |
There is no default focus/defocus setting, each machine is unique in that regard.
You can disable Auto-defocus by pushing the MAG button twice. at least I think it is that button  All I know is that there is a button. You will see in the lower right of the screen "Defocus" toggle on and off.
However not all frequencies Auto-defoucs. There is a chart in the manual that will show how much red and blue de-focus is applied at each frequency. P4 and above have no defocus applied if memory serves me.
|
|
| Back to top |
|
|
AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
|
| Posted: Sat Feb 25, 2012 1:27 am Post subject: Re: scheimpflug G70 |
|
|
| bachiano wrote: | Is there anyway to turn off Blue defocus when doing scheimpflug using the H pattern on the g70?
I did the scheimpflug with the ME pattern within MG focus because I could not find a way to turn defocus off. |
I strongly recommend using the phosphor grain technique for scheimpflug.
That way you don't need to worry about focus either optical or magnetic.
|
|
| Back to top |
|
|
bachiano
Joined: 13 Mar 2006
Posts: 163
|
| Posted: Sat Feb 25, 2012 1:58 am Post subject: |
|
|
AFryia
I Will try the phosphor grain technique.
What are good short throw binoculars to get for this?
Thanks
|
|
| Back to top |
|
|
AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
|
| Posted: Sat Feb 25, 2012 5:41 pm Post subject: |
|
|
| bachiano wrote: | | What are good short throw binoculars to get for this? |
I picked up a 7X Nikon (7x35).
What I found is anything above 7X magnification would not focus very well at near objects closer that 12 ft. Just go to your local sporting goods store and try them all out focusing on near objects. Use a distance representing your PJ to screen.
|
|
| Back to top |
|
|
|
|
