Talk:Flash synchronization

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Merge proposal

I've proposed a merge from X-sync, and also suggest from any other flash sync articles if they exist, like M-sync.

Please support or oppose below, with reasons:

Support, of course, since it's my idea. These articles are too short, and X-sync is only understandable in relation to the more general concept. Dicklyon 16:23, 12 February 2007 (UTC)[reply]

Hearing no objection, I did the merge. Dicklyon 15:36, 21 February 2007 (UTC)[reply]

Asking for more clarification

From the article I still don't know how the synchronization works. What goes first what goes second (the opening of the diafragm or the firing of the flash), what third and what fourt (the closing of the difragm or the finishing of the flash)? Is it good a low sync speed or a hihg sync speed? Why? —Preceding unsigned comment added by Hugozam (talk • contribs) 01:40, 20 July 2009 (UTC)[reply]

High-speed sync query

Is it really true that High speed sync is very rare today?? — Preceding unsigned comment added by 85.235.16.21 (talk)

I don't understand the question. What do you mean by high speed sync? What does someone say it is rare? Dicklyon 15:36, 21 February 2007 (UTC)[reply]

I have no idea and the user is by IP long ago. Some bodies and flashes have "high-speed" modes and today, most dslr's for example, sync at least at 1/125, most typically at 1/250 and some like D40 and D70 mentioned do 1/500. On a related note, there's also nothing about electronic shutters and their effect on flash sync speed nor how the duration of flash pulse relates to very short shutter speeds. 85.23.56.250 (talk) 18:53, 1 August 2008 (UTC)[reply]

Image:2007-10-20 Slow flash synchronization.jpg

Reason for Removal

I feel that that image, doesn't illustrate at all 2nd curtain sync, Sure it may have been taken WITH 2nd curtain sync, but the image does nothing to impart any information on how it works.

You can argue, "But it illustrates what results can be made with 2nd curtain sync" unfortunately, in this case it does not look any different from a 1st curtain sync flash photograph. --122.104.47.1 (talk) 19:45, 23 November 2007 (UTC)[reply]

D70 has an electronic shutter

"but some modern cameras may have an X-sync speed as high as 1/500 (e.g. Nikon D70)." The Nikon D70 and the D40 have an electronic shutter in addition to their focal plane shutter, so this is inaccurate.

True, the hybrid shutter of the D70 (and perhaps also the D40, I have never used one so I cannot verify this) makes it possible to synchronize at all shutter speeds if you just trick the camera into believing that there is no flash attached. A piece of non-conductive tape over the two contact closest to the back of the hot-shoe will do the job. Of course, the flash will have to be in manual mode since no communication between the camera house and the flash unit is longer possible. Maxzom (talk) 12:22, 21 February 2010 (UTC)[reply]

Inaccuracy

It says "X sync closes the flash contact just as the shutter blades are almost open (..)"

This sounds like it describes the point in time just before the shutter opens, i.e. even before light is let through the lens. It should read something like "X sync closes the flash contact just as the shutter blades are completely open (..)" --Schorschi (talk) 08:41, 19 August 2009 (UTC)[reply]