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Thanks Nobbyon. I am looking at painting my old Horizon panorama camera (and maybe thereafter my M2)

 

Did you use a caustic Soda bath for the electrolysis, followed by nitric acid or HCl?

 

Did you have any difficulty finding a waste disposal facility for the hexavalent chromium in solution?

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Thanks Nobbyon. I am looking at painting my old Horizon panorama camera (and maybe thereafter my M2)

 

Did you use a caustic Soda bath for the electrolysis, followed by nitric acid or HCl?

 

Did you have any difficulty finding a waste disposal facility for the hexavalent chromium in solution?

 

chrome and nickel remover from caswell plating nowadays. I used muriatic in the past but too unfriendly for both user and environment.

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My new M2 from MD batch mechanism, with M4 rangefinder, flash socket and quickloading. Butter smooth advance lever and silence shutter.

With all the time 50 DR mounted on.

שבוע טוב

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chrome and nickel remover from caswell plating nowadays. I used muriatic in the past but too unfriendly for both user and environment.
The 'muriatic acid' turns out to be HCl. Of all of the strong acids I can think of that may be one of the most benign, the diluted form is a natural body fluid after all. Close contender would be sulfuric acid, again more or less edible, as is phosphoric (Coca-Cola, anyone?). I would prefer exposure to these anytime above, formic & acetic acid. (Yes, I do know the effect of all of these acids from personal experience. Both dilute and concentrated.)

 

The resulting Ni(2+) or Cr(2+, 3+) containing chloride solutions are not too environmentally friendly, but on the scale here, hardly a risk to anyone.

 

What does the Caswell stuff contain, one wonders??

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Hi,

How is the performance of your 35/2 six lens? Is soft wide open?

 

Thanks

 

Shavua tov.

 

Well I've only seen it's results on a digital M. I've yet to develop any film shot with it.

But I'd say it's okey sharp wide open. Though nothing compared to the latest 50 cron.

 

Here is a shot I took the other day. Completely unedited, no sharpening, no nothing.

 

EDIT: PS: It's not coded so it's not performing optimally on digital Ms.

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Edited by Holybasil
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Well I've only seen it's results on a digital M. I've yet to develop any film shot with it.

But I'd say it's okey sharp wide open. Though nothing compared to the latest 50 cron.

 

Here is a shot I took the other day. Completely unedited, no sharpening, no nothing.

 

EDIT: PS: It's not coded so it's not performing optimally on digital Ms.

 

Thank you for your quick reply.

Well, seems that wide open is a typical Leitz sharp/smooth rendition. Not a oxymoron.

It is actually plenty enjoyable. Not crisp too as well as the modern lenses. On digital it's very amazing. Not contrast too and the OOF very gradually blurred.

Forward so that the old lenses are always fully usable with great pleasure.

 

Kind regards.

 

בברכה

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At last, promised for December, my newly CLAed M2 with rewind lever and no self timer arrived today! Also my newly cleaned 35 Cron IV. Now which to keep, the IV or the Asph? Mmm, maybe both ;)

Pete

 

Lomo Styley:

 

 

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  • 2 weeks later...

I adore my M2

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