nikonians

Even though we ARE Nikon lovers,we are NOT affiliated with Nikon Corp. in any way.


Sign up Login
Home Forums Articles Galleries News Workshops Shop Recommended
members
All members Wiki Contests Vouchers Apps Newsletter THE NIKONIAN™ Magazines Podcasts Fundraising

New CLS Preflash Sequence Images

Arkayem

Richmond Hill, GA (Savannah), US
6044 posts

Click to send email to this author Click to send private message to this author

"RE: New CLS Preflash Sequence Images"

Arkayem Moderator Awarded for his high level skills in flash photography Charter Member
Sun 15-Nov-09 08:27 PM

>After some tests and thinking, I think the Nikon CLS isn't too
>dumb when it comes to managing multiple groups. I think it is
>safe to say the flash output of a remote group is affected by
>the other groups. Or the camera is smart enough to manage the
>outputs of all remote groups as a whole so the final exposure
>is more likely desirable.
>
>I covered that in the 4th post of the subject.

Max,

I read your discussion about how multiple remote flashes operate.

My results were quite different. Whenever two remote TTL flashes overlapped, the image did increase in brightness by about 0.7 stops(assuming both were set to the same power).

Here are a couple of things I have noticed:

1) Books with shiny covers are not good subjects when you are up close. The reflected specular highlights can cause the flash power to decrease unpredictably. This doesn't make a big difference, but it might partially explain why your test didn't show much brightness increase when you used two overlapping flashes.

2) It's not usually a good idea to use use TTL-BL when on the SC-28 cord. The TTL-BL equations require that the distance from the subject to the camera equals the distance of the subject to the flash. Also, TTL-BL works best when the camera and flash are colocated. The background ambient must be the same for the flash as for the camera. Bright areas in the background (a window allowing outside light for instance) from the camera position will cause the flash power to increase to try to balance with it, but if the flash is not co-located with the camera and pointed in the same direction, its power may be increased drastically trying to balance the area that the camera sees.

3) TTL on the SC-28 cord works normally, as though the flash were mounted on the camera.

Russ
Nikonian Team Member
Russell MacDonald Photography
Nikon CLS Practical Guide

Pinned topic New 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 07:25 PM
Subject
ID
Reply message RE: New CLS Preflash Sequence Images
1
Reply message RE: New CLS Preflash Sequence Images
2
     Reply message RE: New CLS Preflash Sequence Images
3
Reply message RE: New CLS Preflash Sequence Images
4
Reply message RE: New CLS Preflash Sequence Images
5
     Reply message RE: New CLS Preflash Sequence Images
6
Reply message RE: New CLS Preflash Sequence Images
7
Reply message RE: New CLS Preflash Sequence Images
8
     Reply message RE: New CLS Preflash Sequence Images
9
          Reply message RE: New CLS Preflash Sequence Images
10
Reply message RE: New CLS Preflash Sequence Images
11
Reply message RE: New CLS Preflash Sequence Images
12
     Reply message RE: New CLS Preflash Sequence Images
13
          Reply message RE: New CLS Preflash Sequence Images
14
               Reply message RE: New CLS Preflash Sequence Images
15
Reply message RE: New CLS Preflash Sequence Images
16
Reply message RE: New CLS Preflash Sequence Images
17
     Reply message RE: New CLS Preflash Sequence Images
18
     Reply message RE: New CLS Preflash Sequence Images
19
     Reply message RE: New CLS Preflash Sequence Images
20
     Reply message RE: New CLS Preflash Sequence Images
21
     Reply message RE: New CLS Preflash Sequence Images
22
     Reply message RE: New CLS Preflash Sequence Images
46
          Reply message RE: New CLS Preflash Sequence Images
47
Reply message RE: New CLS Preflash Sequence Images
23
Reply message RE: New CLS Preflash Sequence Images
24
Reply message RE: New CLS Preflash Sequence Images
25
Reply message RE: New CLS Preflash Sequence Images
26
     Reply message RE: New CLS Preflash Sequence Images
27
     Reply message RE: New CLS Preflash Sequence Images
29
     Reply message RE: New CLS Preflash Sequence Images
28
          Reply message RE: New CLS Preflash Sequence Images
30
               Reply message RE: New CLS Preflash Sequence Images
31
                    Reply message RE: New CLS Preflash Sequence Images
32
                         Reply message RE: New CLS Preflash Sequence Images
33
                              Reply message RE: New CLS Preflash Sequence Images
34
                                   Reply message RE: New CLS Preflash Sequence Images
35
                                        Reply message RE: New CLS Preflash Sequence Images
36
Reply message RE: New CLS Preflash Sequence Images
37
Reply message RE: New CLS Preflash Sequence Images
38
     Reply message RE: New CLS Preflash Sequence Images
39
          Reply message RE: New CLS Preflash Sequence Images
40
               Reply message RE: New CLS Preflash Sequence Images
41
                    Reply message RE: New CLS Preflash Sequence Images
42
                         Reply message RE: New CLS Preflash Sequence Images
43
                              Reply message RE: New CLS Preflash Sequence Images
44
                                   Reply message RE: New CLS Preflash Sequence Images
45
Reply message RE: New CLS Preflash Sequence Images
48
Reply message RE: New CLS Preflash Sequence Images
49
     Reply message RE: New CLS Preflash Sequence Images
50
     Reply message RE: New CLS Preflash Sequence Images
52
     Reply message RE: New CLS Preflash Sequence Images
51
     Reply message RE: New CLS Preflash Sequence Images
54
          Reply message RE: New CLS Preflash Sequence Images
55
     Reply message RE: New CLS Preflash Sequence Images
53
          Reply message RE: New CLS Preflash Sequence Images
56
               Reply message RE: New CLS Preflash Sequence Images
57
                    Reply message RE: New CLS Preflash Sequence Images
58
                    Reply message RE: New CLS Preflash Sequence Images
59
                         Reply message RE: New CLS Preflash Sequence Images
60
                         Reply message RE: New CLS Preflash Sequence Images
62
                              Reply message RE: New CLS Preflash Sequence Images
63
                              Reply message RE: New CLS Preflash Sequence Images
64
                              Reply message RE: New CLS Preflash Sequence Images
67
                                   Reply message RE: New CLS Preflash Sequence Images
68
                                   Reply message RE: New CLS Preflash Sequence Images
72
                              Reply message RE: New CLS Preflash Sequence Images
74
                              Reply message RE: New CLS Preflash Sequence Images
65
                                   Reply message RE: New CLS Preflash Sequence Images
66
                                        Reply message RE: New CLS Preflash Sequence Images
69
                                        Reply message RE: New CLS Preflash Sequence Images
70
                                        Reply message RE: New CLS Preflash Sequence Images
71
                                        Reply message RE: New CLS Preflash Sequence Images
73
                                        Reply message RE: New CLS Preflash Sequence Images
75
                                             Reply message RE: New CLS Preflash Sequence Images
76
                                             Reply message RE: New CLS Preflash Sequence Images
77
                                             Reply message RE: New CLS Preflash Sequence Images
78
                                             Reply message RE: New CLS Preflash Sequence Images
79
                         Reply message RE: New CLS Preflash Sequence Images
61
                              Reply message RE: New CLS Preflash Sequence Images
80
                                   Reply message RE: New CLS Preflash Sequence Images
81
                                        Reply message RE: New CLS Preflash Sequence Images
82
                                             Reply message RE: New CLS Preflash Sequence Images
83
                                                  Reply message RE: New CLS Preflash Sequence Images
84
                                                  Reply message RE: New CLS Preflash Sequence Images
85
                                                  Reply message RE: New CLS Preflash Sequence Images
86
                                                  Reply message RE: New CLS Preflash Sequence Images
87
                                                  Reply message RE: New CLS Preflash Sequence Images
88
Reply message RE: New CLS Preflash Sequence Images
89
Reply message RE: New CLS Preflash Sequence Images
90
Reply message RE: New CLS Preflash Sequence Images
91
     Reply message RE: New CLS Preflash Sequence Images
92
          Reply message RE: New CLS Preflash Sequence Images
93
          Reply message RE: New CLS Preflash Sequence Images
94
          Reply message RE: New CLS Preflash Sequence Images
95
               Reply message RE: New CLS Preflash Sequence Images
96
Reply message RE: New CLS Preflash Sequence Images
97
Reply message RE: New CLS Preflash Sequence Images
98