Here is some information I've found on some of the forums...in case you have extension rails, but don't know what they fit:
12 7/8" long. 8 7/16" wide. 1 1/4" thick.
The extension is a rectangle. the wood along the two sides and back of the extension are 7/8" by 1 1/4" thick. The front part of the rectangle that connects to the camera is 1 1/16" by 1 1/4" thick.
The two side-posts are 5 1/2" apart, and the pair together are centered along the width and thickness of the extension. They are each just a tad (1/32") under 1/4" in diameter, so I'd say they were each made to fit into a quarter inch hole.
The two tracks are both 1/4" wide and are centered at 5/8" from each side. Measuring, the tracks have 12 thingies per inch. ("Thingies" is the best I can do.)
Don't know the thread size, but if you have a 2D, it's easy enough to figure this out.
Leonard Robertson
16-Feb-2007, 09:54
I measured my 2D extension and the dimensions are essentially the same as Neil's, with one possible exception. The brass racks with the teeth on them measure 3/16 inch wide on mine. This may be a difference in measurement, or it may be Kodak used slightly different width racks during the years the 2D was made. If your camera has 3/16" wide pinion gears on the rear standard, they should work with either width rack. If Kodak made some cameras with 1/4" wide pinions, they may not work with 3/16" wide racks.
The thread on my extension is 5/16" X 18 treads per inch.
Jim Galli
16-Feb-2007, 14:44
There was an early and a late iteration. The early one has brass extensions that engage the bed and the lock is non threaded. It goes in a slotted receptacle and turns 1/4 turn to lock it together. The later one as in the pics has a couple of pins that align it and is tightened by a thread. Then there are variations between how the later ones fit. I once had a gorgeous little used 2D that I was going to replace my more beat up user camera with. It didn't have the extension but I figured to keep my old one. Nope, wouldn't align even though they were both late 2D's.
I have heard the 2D is more or less the same camera as the Eastman #2 (which used a lighter color finish). It seems possible the extension from a #2 may have the same dimensions as one for a 2D, but I don't really know.
Finally, the extension for an individual camera was fitted to that camera when it was made, and a different extension may fit more or less well. My track isn't the one that came with my camera, and the pins are a pretty tight fit when it is screwed to the camera. I really have to "help" the rear standard make the jump onto the extension, indicating the racks don't quite match up. But it works as well as it needs to, and I'm afraid if I try to "fix" it, I'll make it worse. All you can do is find a track and give it a try. It may be the extensions will all interchange "well enough" to work.
I haven't paid attention to any recent eBay sales for 2D extensions, but I'm guessing they go for $45-50 or more, and I suspect dealer prices are going to be higher. This is also something a seller who doesn't know cameras will list on eBay as "wooden camera part", or some odd description, so you will have to be creative in your searching.
12 7/8" long. 8 7/16" wide. 1 1/4" thick.
The extension is a rectangle. the wood along the two sides and back of the extension are 7/8" by 1 1/4" thick. The front part of the rectangle that connects to the camera is 1 1/16" by 1 1/4" thick.
The two side-posts are 5 1/2" apart, and the pair together are centered along the width and thickness of the extension. They are each just a tad (1/32") under 1/4" in diameter, so I'd say they were each made to fit into a quarter inch hole.
The two tracks are both 1/4" wide and are centered at 5/8" from each side. Measuring, the tracks have 12 thingies per inch. ("Thingies" is the best I can do.)
Don't know the thread size, but if you have a 2D, it's easy enough to figure this out.
Leonard Robertson
16-Feb-2007, 09:54
I measured my 2D extension and the dimensions are essentially the same as Neil's, with one possible exception. The brass racks with the teeth on them measure 3/16 inch wide on mine. This may be a difference in measurement, or it may be Kodak used slightly different width racks during the years the 2D was made. If your camera has 3/16" wide pinion gears on the rear standard, they should work with either width rack. If Kodak made some cameras with 1/4" wide pinions, they may not work with 3/16" wide racks.
The thread on my extension is 5/16" X 18 treads per inch.
Jim Galli
16-Feb-2007, 14:44
There was an early and a late iteration. The early one has brass extensions that engage the bed and the lock is non threaded. It goes in a slotted receptacle and turns 1/4 turn to lock it together. The later one as in the pics has a couple of pins that align it and is tightened by a thread. Then there are variations between how the later ones fit. I once had a gorgeous little used 2D that I was going to replace my more beat up user camera with. It didn't have the extension but I figured to keep my old one. Nope, wouldn't align even though they were both late 2D's.
I have heard the 2D is more or less the same camera as the Eastman #2 (which used a lighter color finish). It seems possible the extension from a #2 may have the same dimensions as one for a 2D, but I don't really know.
Finally, the extension for an individual camera was fitted to that camera when it was made, and a different extension may fit more or less well. My track isn't the one that came with my camera, and the pins are a pretty tight fit when it is screwed to the camera. I really have to "help" the rear standard make the jump onto the extension, indicating the racks don't quite match up. But it works as well as it needs to, and I'm afraid if I try to "fix" it, I'll make it worse. All you can do is find a track and give it a try. It may be the extensions will all interchange "well enough" to work.
I haven't paid attention to any recent eBay sales for 2D extensions, but I'm guessing they go for $45-50 or more, and I suspect dealer prices are going to be higher. This is also something a seller who doesn't know cameras will list on eBay as "wooden camera part", or some odd description, so you will have to be creative in your searching.
