Graflex.org

aoresteen · Joined: 26 May 2004 Posts: 67 Location: Newnan, GA, USA

What are the FOCAL PLANE shutter speed ranges for the Pacemaker Speed Graphic 23?

Seems a simple question but not so easy to find.

I'm thinking about getting a few barrel lenses to use on a 2x3 Graphic but I need to know what shutter speeds the focal plane shutter has.

Thanks!
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Tony Oresteen
Newnan, GA

WWW.oresteen.com

45PSS · Posted: Sat Jan 02, 2016 8:27 pm Post subject:

According to http://www.cameraeccentric.com/html/info/graflex_5.html
they are 30 120 500 for low tension setting and 60 250 1000 for high tension setting. (Introductory version.)

According to http://www.cameraeccentric.com/html/info/graflex_4.html
they are 30 125 500 for low tension setting, 50 250 1000 for high tension setting. (Later version.)
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The best camera ever made is the one that YOU enjoy using and produces the image quality that satifies YOU.

aoresteen · Joined: 26 May 2004 Posts: 67 Location: Newnan, GA, USA

Thanks!

I will need slow speeds like 1 sec, 1/2, 1/4, and 1/8. Why weren't slow speeds available?
_________________
Tony Oresteen
Newnan, GA

WWW.oresteen.com

45PSS · Posted: Sun Jan 03, 2016 7:23 am Post subject:

A Miniature Speed Graphic http://graflex.org/speed-graphic/miniature-speed-graphic.html will have 6 tension settings and 4 aperture widths like Anniversary speeds. Finding one with an accurate shutter will be next to impossible. The slowest marked speed is 1/10. Serviced FPS of the era usually run 4 speeds at all tensions due to the main tensioning spring loosing its strength. The other occurrence is 50% to 60% of the speeds become good again with the slowest speed obtainable 1/30 at any tension setting.

The FPS is a single length of thin rubber coated cloth with 3 or 4 aperture slots + O with a spring inside the lower roller that is tensioned to close the curtain from O on the lowest tension setting with the camera in any position.

I would say the slow speeds you're after weren't available due to design restrictions.
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The best camera ever made is the one that YOU enjoy using and produces the image quality that satifies YOU.

kentop · Joined: 08 Dec 2015 Posts: 14 Location: Tucson Arizona

aoresteen · Joined: 26 May 2004 Posts: 67 Location: Newnan, GA, USA

Dan Fromm · Joined: 14 May 2001 Posts: 2144 Location: New Jersey

Tony, its time to learn about hanging lenses in barrel in front of a shutter and hanging a shutter in front of a barrel lens.

You can read about how I've done it at http://www.galerie-photo.com/telechargement/dan-fromm-6x9-lenses-v2-2011-03-29.pdf

aoresteen · Joined: 26 May 2004 Posts: 67 Location: Newnan, GA, USA

45PSS · Posted: Mon Jan 04, 2016 12:01 am Post subject:

A Graflex/Graphic FPS can do speeds of 1 second or slower by setting the shutter to T and tension to high for fastest curtain response.
Trip shutter and start timing at the same moment, press shutter release a second time at the end of the time desired. 1 second may take some practice to get correct. Neutral density filters can be used to reduce slower shutter speeds to longer exposure times for convince.
_________________
The best camera ever made is the one that YOU enjoy using and produces the image quality that satifies YOU.