Vickko
Veteran
Hello all,
I just received a Synchro Compur shutter and noticed the following behaviour. It came with an older 150mm Ysarex lens, and from the serial number, must be early in its production. The owner says he has had the shutter serviced, but I wonder whether this is proper behaviour for the shutter:
1. To open the shutter for viewing, I have to cock the shutter and then push the opening tab.
The shutter opens properly and the tab stays down. But when I lift the tab, the shutter does not re-close.
I have to press the shutter release to close the shutter. The opening tab pops up and the shutter works afterwards.
Is lifting the opening tab supposed to re-close the shutter?
2. On 1/400, the shutter release doesn't fire the shutter if the flash is on X setting. It fires if I push the flash sync lever. If the sync is on M, the shutter fires properly at 1/400.
The cosmetics of the shutter and lens are very very good, so I don't think it has been abused. Just curious about this behaviour.
Thanks in advance
I just received a Synchro Compur shutter and noticed the following behaviour. It came with an older 150mm Ysarex lens, and from the serial number, must be early in its production. The owner says he has had the shutter serviced, but I wonder whether this is proper behaviour for the shutter:
1. To open the shutter for viewing, I have to cock the shutter and then push the opening tab.
The shutter opens properly and the tab stays down. But when I lift the tab, the shutter does not re-close.
I have to press the shutter release to close the shutter. The opening tab pops up and the shutter works afterwards.
Is lifting the opening tab supposed to re-close the shutter?
2. On 1/400, the shutter release doesn't fire the shutter if the flash is on X setting. It fires if I push the flash sync lever. If the sync is on M, the shutter fires properly at 1/400.
The cosmetics of the shutter and lens are very very good, so I don't think it has been abused. Just curious about this behaviour.
Thanks in advance
Vickko
Veteran
Ha, I'm doing a "Happy Dance" here.
I sorted the shutter.
1. I cleaned out the opening tab mechanism completely, and relubed it.
It still isn't perfect, but it does re-open when I lift the tab.
2. the "stiff spring" that accelerates the shutter at 1/400 was improperly installed.
And of course, it was interfering with the X sync setting.
I installed the spring at the correct location and it works just fine.
Shutter speeds check out fine, and I'm very happy with the shutter.
Here I am, "in action":
I sorted the shutter.
1. I cleaned out the opening tab mechanism completely, and relubed it.
It still isn't perfect, but it does re-open when I lift the tab.
2. the "stiff spring" that accelerates the shutter at 1/400 was improperly installed.
And of course, it was interfering with the X sync setting.
I installed the spring at the correct location and it works just fine.
Shutter speeds check out fine, and I'm very happy with the shutter.
Here I am, "in action":
Not having experienced the joys of large format yet, I'd never thought about the need to be able to open the shutter for ground glass viewing but of course now you mention it, it's obvious. It's great you've added the details here as these kinds of discussions can be so helpful to other owners of film kit. And it can be encouraging to those who might be considering tackling their own repairs. It's true, occasionally there are limits to what one can do in a home workshop, but not so often, and, as you demonstrated so well in your Leicaflex repair thread, some basic skills, a willingness to analyse and perservere, and a gentle touch, can go a long way, even with those projects said to be impossible to DIY.
Cheers
Brett
Cheers
Brett
Cheers
Brett
Cheers
Brett
Pirate
Guitar playing Fotografer
Congrats! Glad it's working well for you now.
oftheherd
Veteran
Great! The only shutter I have dabbled with is an Ibsor.
But lighter fluid next to two candles?
But lighter fluid next to two candles?
Dan Daniel
Well-known
Lighter fluid and candles?? Hmmmm....
I recently received a Synchro-Compur where the tab DOES hold the shutter open. It is the old style with a round button that you slide and then release the shutter. But it doesn't grab when I re-cock the shutter for closing it. I have to let the shutter fire, then cock the shutter for the actual exposure. A minor issue, so I'll let it slide for now. Other than that it works well, accurate speeds. Based on the lens serial number, it's from 1955 or so- not bad for such a messy little design.
I recently received a Synchro-Compur where the tab DOES hold the shutter open. It is the old style with a round button that you slide and then release the shutter. But it doesn't grab when I re-cock the shutter for closing it. I have to let the shutter fire, then cock the shutter for the actual exposure. A minor issue, so I'll let it slide for now. Other than that it works well, accurate speeds. Based on the lens serial number, it's from 1955 or so- not bad for such a messy little design.
Pioneer
Veteran
Yeah, I kind of noticed that one too. I'm sure you've done it this way forever but if it ever goes south it will be tough to handle at a minimum.