Prontor 1 Shutter Question

[Ig Nacio]

Hi,

I am using a lens on a Prontor 1 shutter.

Very strange shutter. Comparing it to a Copal 1 shutter it is quite strange.
This Prontor shutter has two cable release inlets: one, apparently for
opening the lens for focusing, and the other one to actually fire the shutter.

My only cable release has a very short tip when I press it. It is not useful
with any of the large format lenses that I use. It does however work with
other camera formats, but not with large format lenses.

Due to this, when I need to focus this lens that has this Prontor 1 shutter,
I have to put the speed on 'B', (bulb), and set the diaphragm to the widest
aperture, (f/5.6). After I have focused, I set the lens to the desired, or
optimal - if you will, speed and diaphragm conbination.

It is not only strange, but a bit cumbersome to use this Prontur 1 shutter.

Have you used this kind of shutter? Do you know if one needs a special cable
release for this Prontor 1 shutter?

The thing is, that there may be a bit of shake when taking a photo, because
to release the shutter, one actually has to pull down a lever.

Any comments or suggestions are appreciated.

Thank you in advance, kind regards,

Ig Nacio : )!!!

[Luis-F-S]

Buy the correct shutter release. L

[roadhouse]

The Prontor Professional was the most expensive manual shutter and is self-cocking. There is s specific shutter release (or better: remote control). You can use it not only to release the shutter but also to switch between open aperture (for focusing) and working aperture. There was also a speed time and aperture device. In this combination the lens can be fully operated when standing behind the camera.

However, you could also use two separate shutter releases to work with. One is to release the shutter, the other to open the aperture for focusing.
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[Ig Nacio]

Hi,

Luis and Roadhouse: Thank you for your messages : )!!!

I'll try to get the proper cable release. But at first, it may
be easier to get two separate (single) cable releases.

Thank you again, very kind regards!

Ig

[Luis-F-S]

I would get a Gepe release from B&H and just use it to fire the shutter. You can open the shutter manually to focus.

https://www.bhphotovideo.com/c/product/272796-REG/Gepe_602112_Plastic_Covered_Cable_Release.html

[Paul Ron]

some shutters use long throw cables.

1+ using 2 cables is a good solution.

[Ig Nacio]

Hi,

Luis and Paul: Thank you for your messages : )!!!

Two cables have been ordered! I hope they arrive soon!

Thank you again for your help!

Very kind regards!

Ig : )!!!