Dallmeyer 2A

coriana6jp · Sep 6, 2009

Hi All,

I came across a rather Dallmeyer 2A lens. I have not been able to come across alot of info on the beast. Beyond that I will admit, I know next to nothing about this monster, I am not sure whether I will keep it or get rid of it. But, if anybody has information on this thing it would be greatly appreciated. What I do know is it's 20.5cm(8.1in) long, 11.8cm(5 inches) in diameter, and it weighs 2120grams (4.6lbs). Its in good condition, the focusing knob is smooth, the glass is scratch free and there is no fungus or any other artifacts. There are no waterhouse stops or flange. Attached below are a couple of pictures.

Thanx!

Gary

Anton Lukoszevieze · Sep 6, 2009

You don't need it, just send it to me

coriana6jp · Sep 6, 2009

Anton Lukoszevieze said:
You don't need it, just send it to me

You are probably right, I don't need it! But, I want to play at least a little bit, especially if it swirls!

Gary

Barry S · Sep 6, 2009

Nice find! The Dallmeyer 2A Patent Portrait lens is a Petzval design intended primarily for portraits. There is a cemented doublet in front and two air-spaced elements in the rear. The marks on the brass ring of the rear element are positions the lens element can be unscrewed to achieve a psuedo soft focus effect. In older lenses, the two elements are usually frozen together and can't be unscrewed. This isn't a major loss because the soft focus effect isn't very good. The 2A is a 13.5" lens originally intended cover a 4"x6" plate. If you want to see extensive swirl, you should try it on whole plate or even 8x10. The image circle will be roughly equivalent to the focal length.

More info at: http://www.cameraeccentric.com/html/info/dallmeyer_1.html

More info and you can date your lens at: Dead Link Removed

Anton Lukoszevieze · Sep 6, 2009

yes, it is very swirly wide open, when you a have tried it then send it to me

coriana6jp · Sep 6, 2009

Thanks for all the information. I am having a friend with a machine shop make a flange and I think I have an extra packard shutter lying around here somewhere. I will put it on 8x10 to begin with and see how well it works!

Thanks much!

Gary

Anton Lukoszevieze · Sep 7, 2009

it will work wonderfully....

coriana6jp · Sep 8, 2009

Barry S said:
Nice find! The Dallmeyer 2A Patent Portrait lens is a Petzval design intended primarily for portraits. There is a cemented doublet in front and two air-spaced elements in the rear. The marks on the brass ring of the rear element are positions the lens element can be unscrewed to achieve a psuedo soft focus effect. In older lenses, the two elements are usually frozen together and can't be unscrewed. This isn't a major loss because the soft focus effect isn't very good. The 2A is a 13.5" lens originally intended cover a 4"x6" plate. If you want to see extensive swirl, you should try it on whole plate or even 8x10. The image circle will be roughly equivalent to the focal length.

Hi Barry,

Thanks for the information. The rear elements on lens do unscrew! SO I guess I go lucky in that regard.

The lens didnt come with a flange, not any waterhouse stops. So I am going to either try to locate one or have SK Grimes make one before I can use the lens. I got lucky, the glass is completely scratch/fungus/seperation free.

Thanks!

Gary

Dallmeyer 2A

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