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Super Ikonta Shutters (flash synch)
It was/is my understanding that the old Zeiss Super Ikonta 'flash' shutter
was called a Synchro, and that the Rapid and other shutters had no flash terminal. However, on that big auction site a fellow has one with a Rapid shutter and claims that it has a flash terminal. He says it is just next to the shutter cocking lever. Is this atypical or am I just flat wrong? It's item #230226141947 |
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Super Ikonta Shutters (flash synch)
On Wed, 27 Feb 2008 07:32:24 -0600, jjs wrote:
It was/is my understanding that the old Zeiss Super Ikonta 'flash' shutter was called a Synchro, and that the Rapid and other shutters had no flash terminal. However, on that big auction site a fellow has one with a Rapid shutter and claims that it has a flash terminal. He says it is just next to the shutter cocking lever. Is this atypical or am I just flat wrong? The Compur-Rapid does have flash sync, or at least every Compur-Rapid I've seen does. It's X sync, firing when the shutter is fully open. The Synchro-Compur shutter adds M sync for flash bulbs. -- Matthew Winn [If replying by mail remove the "r" from "urk"] |
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Super Ikonta Shutters (flash synch)
Matthew Winn wrote:
On Wed, 27 Feb 2008 07:32:24 -0600, jjs wrote: It was/is my understanding that the old Zeiss Super Ikonta 'flash' shutter was called a Synchro, and that the Rapid and other shutters had no flash terminal. However, on that big auction site a fellow has one with a Rapid shutter and claims that it has a flash terminal. He says it is just next to the shutter cocking lever. Is this atypical or am I just flat wrong? The Compur-Rapid does have flash sync, or at least every Compur-Rapid I've seen does. It's X sync, firing when the shutter is fully open. The Synchro-Compur shutter adds M sync for flash bulbs. There are Compurs-Rapids without flash sync: I think those with a "T" and "B" positions (I had one in a kodak 620 duo) |
#4
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Super Ikonta Shutters (flash synch)
"Matthew Winn" wrote in message ... The Compur-Rapid does have flash sync, or at least every Compur-Rapid I've seen does. It's X sync, firing when the shutter is fully open. The Synchro-Compur shutter adds M sync for flash bulbs. Interesting. My Compur-Rapid has no flash socket whatsoever. It is #40642xx. Where the ebay one has a flash socket, I have a cable release socket. Were X (electronic) flashes available back then? |
#5
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Super Ikonta Shutters (flash synch)
"JDA" wrote in message ... There are Compurs-Rapids without flash sync: I think those with a "T" and "B" positions (I had one in a kodak 620 duo) Bingo! Mine has no flash synch, but it does have T whereas the flash synch model on ebay has no T setting. Thanks for that! |
#6
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Super Ikonta Shutters (flash synch)
jjs wrote:
"Matthew Winn" wrote in message ... The Compur-Rapid does have flash sync, or at least every Compur-Rapid I've seen does. It's X sync, firing when the shutter is fully open. The Synchro-Compur shutter adds M sync for flash bulbs. Interesting. My Compur-Rapid has no flash socket whatsoever. It is #40642xx. Where the ebay one has a flash socket, I have a cable release socket. Were X (electronic) flashes available back then? When is "back then"? The first I saw and used were ponderous Heilands with large and heavy wet cell packs in the very early 50s. They were not something for the consumer market and I don't recall how they synced. I was in the Navy at the time. We used the anniversary model Speed Graphic and flash bulb sync was via an external solenoid; to change that solenoid so it synced with electronic flash would have been extremely inconvenient to say the least so maybe the shutters *did* have an x-sync. I have two Rolleis I purchased in 1956 with X-sync. The earliest consumer type electronic flash I know of was the "FR" from the mid 50s. Used four "D" cells, good for about 30-40 flashes. -- dadiOH ____________________________ dadiOH's dandies v3.06... ....a help file of info about MP3s, recording from LP/cassette and tips & tricks on this and that. Get it at http://mysite.verizon.net/xico |
#7
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Super Ikonta Shutters (flash synch)
"dadiOH" wrote in message
news:KJSxj.9428$xg6.4653@trnddc07... jjs wrote: Were X (electronic) flashes available back then? When is "back then"? The first I saw and used were ponderous Heilands with large and heavy wet cell packs in the very early 50s. That is before my time in the profession, but I was referring to when my camera was made, the 1930's. But speaking of big flash units, I did lug about the huge, blue plastic Singer Graflex battery pack, then later the "lightweight" 510 volt battery (which was really something like sixty 9V batteries wired in series). |
#8
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Super Ikonta Shutters (flash synch)
jjs wrote:
"dadiOH" wrote in message news:KJSxj.9428$xg6.4653@trnddc07... jjs wrote: Were X (electronic) flashes available back then? When is "back then"? The first I saw and used were ponderous Heilands with large and heavy wet cell packs in the very early 50s. That is before my time in the profession, but I was referring to when my camera was made, the 1930's. I doubt there was X-sync then since Edgerton invented the speedlight (AKA strobe) in 1931. _____________ But speaking of big flash units, I did lug about the huge, blue plastic Singer Graflex battery pack, Shucks, it ain't heavy, it's my strobe. (Apologies to Father Flanagan & Mickey Rooney) -- dadiOH ____________________________ dadiOH's dandies v3.06... ....a help file of info about MP3s, recording from LP/cassette and tips & tricks on this and that. Get it at http://mysite.verizon.net/xico |
#9
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Super Ikonta Shutters (flash synch)
On Thu, 28 Feb 2008 11:06:05 -0600, jjs wrote:
"Matthew Winn" wrote in message ... The Compur-Rapid does have flash sync, or at least every Compur-Rapid I've seen does. It's X sync, firing when the shutter is fully open. The Synchro-Compur shutter adds M sync for flash bulbs. Interesting. My Compur-Rapid has no flash socket whatsoever. It is #40642xx. Where the ebay one has a flash socket, I have a cable release socket. Now I look more carefully I find I have one like that too. It's not in a camera, which is probably why I didn't notice it. Were X (electronic) flashes available back then? I'm no expert on flash sync, but I get the impression that X sync was used with bulbs first: not because it was best suited to bulbs, but because it was easy to build. All you need to do to get X sync on a Compur shutter is to put a switch next to the ring that operates the shutter blades and attach a peg to the ring such that when the shutter is fully open the peg closes the switch. M sync is harder because the switch has to close well before the shutter blades start to open. I have a manual for a 35mm camera with a Compur-Rapid shutter and it mentions electronic flash only in passing. Mostly it talks about bulbs and the need for a shutter speed slower than 1/25s to allow the light to peak. -- Matthew Winn [If replying by mail remove the "r" from "urk"] |
#10
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Super Ikonta Shutters (flash synch)
"dadiOH" wrote in message news:XW_xj.7352$li.2709@trnddc06... I doubt there was X-sync then since Edgerton invented the speedlight (AKA strobe) in 1931. 1950 seems to be the date of the factory shutter flash synch for Ikonta & Super Ikontas. I got a great, clear reprint, "IKONA & Super-Ikonta Guide" by "The Camera Guide", 1952. I haven't finished it yet, but it does list just which models had shutters with flash synch. Prontor, Compur and Compur Rapid shutters for the Ikonta and Super Ikontas since 1950 were internally synchronized for flash, however the flash delay was fixed at X so one had to use shutter speeds to accomodate the flashbulb's rise time. This means typically 1/25th of a second for most bulbs other than the Speed Midget types (which are quite rare today.) There were some made with The Speed Synchronized Prontor SV shutter which added a synchro delay options of 0, 5 to 24 milli-seconds via a dial with X, F, M settings to better accomodate various bulb rise-times. Interesting find - some Ikontas were designed to accomodate 620 spools as well as 120 spools. There was also a model that used 616 rollfilm which gave a negative of 2.25 X 4.25". Finally, for those confused by the two red windows in the back - use the window on the LEFT. Unless you have an adapter to 645. |
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