
Posted: Tue Dec 12, 2006 2:28 pm
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On 2006-12-11 16:35, chase wrote:
Hey everyone - new special owner and of course some questions i hope you can help me with.
My CG Special came with the 135mm Xenor standard lens. But there are two sets of infinity stops, a red and a blue set. A red dot on the back of the Lens board clued me in that it uses the red infinity stops.
The blue doted infinity stops - ? I'm not sure if they are for close up with this lens or prehaps used for another lens. Also i noticed a blue dot on the under side of the viewer mask that came with the camera.
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Graflex color coded infinity stops, scales and masks when two lenses (any two lenses or more) were factory fitted. The color won't tell you what lens it is but the position of the infinity stops will give a good guess, and since you said "close up" I'm guessing these stops are farther out, suggesting a long lense like a 250 teleoptar or a 203 ektar.
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Aside from that, is there a list of lenses that can be used with the CG Special? I did notice in the manual i have for the range finder it states something about factory issued lenses? versus customer lenses and the cam that can be used for them and or custom made cams?
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I can come up with a list of common lenses issued with the Crown graphic: 90mm optar, 90mm Angulon, 100mm WF Ektar, 127 Ektar, 135 OPtar, 152 Ektar, 162 Optar, 190 Optar, 203mm EKtar, 250mm Teleoptar, 385mm Teleoptar.
But other company's lenses were often found on Graphic cameras as well.
The cam goes with the top rangefinder, not just the Crown Special. The reason Graflex talks about factory issued cams is that the stated focal lens of the lens is not always the actual focal length. They might vary a milimeter or two, but the cam had to be for the exact focal length. That's why Graflex had something like 15 cams for the 127mm focal length at one time.
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Is there a standard set of lens and cams that work specifically for the CG Special?
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Not a set exactly, Cams were wedded to a particular lens. Sometimes they even had a keeper for them on the back of the lensboard.
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Are there new lenses that fit the standard CG Special cams?
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This is the difficult part of anachronistic hardware. If you wanted it exactly like the factory, you'd have to put a new lens on an optical bench to find the exact focal length, then scour ebay to find the exact cam for that focal lenght. In real life, you find a 135 cam and a 135 Symmar and you use it and you stop down. It works. Now there are many many lenses that will fit/work on a Graphic when use the ground glass to focus.
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I'm a little lost on this.
I'd like to add a 210mm or 240mm or longer lens if possible.
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There are two ways to play this game. The easiest is to use either of these lenses with the ground glass. Then you'll only need to buy another lensboard. The second way is to set up the 135 lens with the cam and the focus scales. Set up another set of infinity stops and focus scales for your new lens. Leave the 135 cam in the rangefinder. Now you'll focus on a subject, look at the position of the focus scale for the 135mm lens, then transfer that distance to the focus scales of the new lens.
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What are the limits to the size lenses that work with standard cams for the CG Special?
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The smallest cam I know of is a 90mm, the longest is for the 385 teleoptar, which is pretty much of a joke, as it's a reall bugger to hand hold.
<font size=-1>[ This Message was edited by: Les on 2006-12-12 06:32 ]</font>