Handa made RAF Biogon 38mm unit

stonemute

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Hi all,

I made a lens unit of Biogon 38mm f4.5 from a R.A.F.(Royal Air Force) aero lens.

Lens unit I bought from eBay.


Remove the lens by using a lathe.


Design the adapter with a 3-D CAD.



Finished part of the adapter.



Then, the lens unit was completed.


Was required very, very advanced design capabilities and machining accuracy.
 
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stonemute

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> Richard S.
Thanks.
I will post some results about one month later, because I'm making a camera.
 

smiling gecko

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that's an amazing bit of creation you have made! it is science expressed as an art.

my skill level is dremel tool dabbling/vise grip clamping/taking "it" to a skilled repair person to undue my "doing".

now, if you could conjure up with a visoflex for a mamiya6...ooh, those longer RB67 lenses.

good luck and good hunting.

breathe, relax and enjoy.
smiling gecko, aka kenneth
www.neverforgetbeslan.org
 

steven_e007

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This I like... it inspires me to go and tidy up the junk in my garage and get to work on finishing one of my many, many (MANY) uncompleted projects.

I think it will have to be the wide angle 91/2" square camera with the 6" Ross lens, first
 

Argenticien

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stonemute, that is indeed impressive! Have you tested the image circle of the lens to determine whether it could cover film formats larger than 6 cm x 7 cm? (Apologies if this is an ignorant question. Maybe the answer is already obvious to readers who shoot large format, but I am not among them!)
--Dave
 
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stonemute

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keithwms said:
Great work, I also look forward to seeing results!

What was the net cost of this lens, for you to make it?
Click to expand...


The net cost of adapter is $190(including nitride & anodized),
biogon is $320(including shipping cost to Japan).
Not included my manpower.
 
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stonemute

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> (there was a url link here which no longer exists)
6" Ross lens!
I want to make a camera with Ross too!
I cannot wait completion of your project.
 
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stonemute

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Joined
Apr 4, 2012
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Location
Tokyo, Japan
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Argenticien said:
stonemute, that is indeed impressive! Have you tested the image circle of the lens to determine whether it could cover film formats larger than 6 cm x 7 cm?
Click to expand...
The image circle is 84mm.
It is just covered 6x7, impossible to take 6x8, impossible to rise.
 
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