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Subject: " RE: New CLS Preflash Sequence Images" Previous topic | Next topic
km6xz Moderator Awarded for his in-depth knowledge in various areas, including Portraits and Urban Photography Nikonian since 22nd Jan 2009Wed 25-Mar-09 12:36 PM
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#42. " RE: New CLS Preflash Sequence Images"
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St Petersburg, RU
          

A note to Hal
That was a wonderful example of "kitchen table" research, well done.

Have you considered using sound-cards to use as a 2 channel oscilloscope for each of pair of monitored channels? Four channel cards are not too expensive to really simplify things. Some scope software have pretty versatile data capture options, and best of all, there are several software packages that are free. Their crystal controlled clock, low jitter and 44.1Khz to 192Khz sampling rate at 16-24 bits makes for some pretty high res measurements. Some sound cards even handle DC. An AC-only input can be used if the slower measured signal is gating a known HF signal(, in duplex mode the sound card provides any AC signal you want, makes pulse width measurements a snap by just counting the carrier transitions under a measured pulse.

I have the needed test equipment but not enough camera gear to duplicate your experiments using a 4 channel DSO or logic analyzer. The logic analyzer would need photo-transistor sensors but that would be a simple to create optic>logic level signals.

My TEAS(Test Equipment Acquisition Syndrome) overpowers my NAS. Good used test equipment is cheaper than good camera gear. There are exceptions, my RF service monitor cost me 3 times what a D3X costs. That could have gotten me a few good lenses, which right now I would probably use more often.

I built my own wireless triggers (and studio 600w/s strobes) but have hardly used them since a week or so after I built them in the fall. The SB900 and Sigma 530Super do everything I need(or can afford) right now.

By the way, for low power signaling, there are overlapping RF spectrum in the 3 main markets, which means MMCs are dirt cheap for those frequencies as the entire RF section of a wireless system.

Maybe you need a few less SB800s and I need one less HP DSO:>)

Stan
St Petersburg Russia

Visit my Nikonians gallery.

  

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Pinned topicNew CLS Preflash Sequence Images [View all] , HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources. , Thu 15-Jan-09 08:25 PM
 
Subject Author Message Date ID
Reply message RE: New CLS Preflash Sequence Images
dgillilan Silver Member
29th Jan 2009
1
Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
29th Jan 2009
2
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dgillilan Silver Member
30th Jan 2009
3
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bclaff Silver Member Awarded for multiple contributions for the Resources
03rd Feb 2009
4
Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
03rd Feb 2009
5
     Reply message RE: New CLS Preflash Sequence Images
bclaff Silver Member Awarded for multiple contributions for the Resources
04th Feb 2009
6
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nrothschild Silver Member Neil is an expert in several areas, including camera support
04th Feb 2009
7
Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
04th Feb 2009
8
     Reply message RE: New CLS Preflash Sequence Images
jtzim
06th Feb 2009
9
          Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
06th Feb 2009
10
Reply message RE: New CLS Preflash Sequence Images
Arkayem Moderator Awarded for his high level skills in flash photography
15th Feb 2009
11
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bclaff Silver Member Awarded for multiple contributions for the Resources
15th Feb 2009
12
     Reply message RE: New CLS Preflash Sequence Images
Arkayem Moderator Awarded for his high level skills in flash photography
15th Feb 2009
13
          Reply message RE: New CLS Preflash Sequence Images
bclaff Silver Member Awarded for multiple contributions for the Resources
15th Feb 2009
14
               Reply message RE: New CLS Preflash Sequence Images
Arkayem Moderator Awarded for his high level skills in flash photography
15th Feb 2009
15
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caprae
17th Feb 2009
16
Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
18th Feb 2009
17
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nightcat
18th Feb 2009
18
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Arkayem Moderator Awarded for his high level skills in flash photography
18th Feb 2009
19
     Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
18th Feb 2009
20
     Reply message RE: New CLS Preflash Sequence Images
bclaff Silver Member Awarded for multiple contributions for the Resources
18th Feb 2009
21
     Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
18th Feb 2009
22
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Lakeesh
10th Aug 2009
46
          Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
11th Aug 2009
47
Reply message RE: New CLS Preflash Sequence Images
john barlow
24th Feb 2009
23
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bclaff Silver Member Awarded for multiple contributions for the Resources
24th Feb 2009
24
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john barlow
24th Feb 2009
25
Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
24th Feb 2009
26
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jrp Administrator JRP is one of the co-founders, has in-depth knowledge in various areas. Awarded for his contributions for the Resources
25th Feb 2009
27
     Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
25th Feb 2009
29
     Reply message RE: New CLS Preflash Sequence Images
john barlow
25th Feb 2009
28
          Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
25th Feb 2009
30
               Reply message RE: New CLS Preflash Sequence Images
john barlow
25th Feb 2009
31
                    Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
25th Feb 2009
32
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nl
26th Feb 2009
33
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HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
27th Feb 2009
34
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PAStime Silver Member
06th Mar 2009
35
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HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
06th Mar 2009
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ScottChapin Moderator Awarded for his high level skills in various areas, including Aviation and Birds Photography
09th Mar 2009
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Arkayem Moderator Awarded for his high level skills in flash photography
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ScottChapin Moderator Awarded for his high level skills in various areas, including Aviation and Birds Photography
09th Mar 2009
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Arkayem Moderator Awarded for his high level skills in flash photography
09th Mar 2009
40
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ScottChapin Moderator Awarded for his high level skills in various areas, including Aviation and Birds Photography
09th Mar 2009
41
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km6xz Moderator Awarded for his in-depth knowledge in various areas, including Portraits and Urban Photography
25th Mar 2009
42
                         Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
25th Mar 2009
43
                              Reply message RE: New CLS Preflash Sequence Images
km6xz Moderator Awarded for his in-depth knowledge in various areas, including Portraits and Urban Photography
25th Mar 2009
44
                                   Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
25th Mar 2009
45
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picmax
04th Nov 2009
48
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picmax
11th Nov 2009
49
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km6xz Moderator Awarded for his in-depth knowledge in various areas, including Portraits and Urban Photography
11th Nov 2009
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picmax
11th Nov 2009
52
     Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
11th Nov 2009
51
     Reply message RE: New CLS Preflash Sequence Images
picmax
11th Nov 2009
54
          Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
11th Nov 2009
55
     Reply message RE: New CLS Preflash Sequence Images
Arkayem Moderator Awarded for his high level skills in flash photography
11th Nov 2009
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picmax
15th Nov 2009
56
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Arkayem Moderator Awarded for his high level skills in flash photography
15th Nov 2009
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picmax
16th Nov 2009
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picmax
16th Nov 2009
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Arkayem Moderator Awarded for his high level skills in flash photography
16th Nov 2009
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picmax
16th Nov 2009
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Arkayem Moderator Awarded for his high level skills in flash photography
16th Nov 2009
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gkaiseril Gold Member
16th Nov 2009
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Arkayem Moderator Awarded for his high level skills in flash photography
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gkaiseril Gold Member
16th Nov 2009
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picmax
17th Nov 2009
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picmax
17th Nov 2009
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HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
16th Nov 2009
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gkaiseril Gold Member
16th Nov 2009
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HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
16th Nov 2009
69
                                        Reply message RE: New CLS Preflash Sequence Images
Arkayem Moderator Awarded for his high level skills in flash photography
17th Nov 2009
70
                                        Reply message RE: New CLS Preflash Sequence Images
HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
17th Nov 2009
71
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picmax
17th Nov 2009
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picmax
17th Nov 2009
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km6xz Moderator Awarded for his in-depth knowledge in various areas, including Portraits and Urban Photography
17th Nov 2009
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HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
17th Nov 2009
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gkaiseril Gold Member
17th Nov 2009
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picmax
17th Nov 2009
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Arkayem Moderator Awarded for his high level skills in flash photography
16th Nov 2009
61
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dondiego
28th Dec 2009
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HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
29th Dec 2009
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dcayers Silver Member
22nd Feb 2010
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HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
26th Feb 2010
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ctadin Silver Member
27th Feb 2010
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HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
02nd Mar 2010
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jhanes55 Silver Member
15th Mar 2010
86
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HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
15th Mar 2010
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jhanes55 Silver Member
16th Mar 2010
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henryga
03rd Apr 2010
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picmax
04th Apr 2010
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HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
05th Apr 2010
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selectivecolour
01st May 2010
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picmax
01st May 2010
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selectivecolour
03rd May 2010
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gkaiseril Gold Member
13th May 2010
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14th May 2010
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Nikonmel
19th Nov 2011
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HBB Moderator Hal is an expert in several areas, including CLS Awarded for his excellent article contributions to the Resources.
21st Nov 2011
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