Show us your home made camera...

[Tin Can]

Tidy!

Looks almost like parts from...brain fade....I have a cold.

[Tin Can]

Jac is the Pacific optical 2 halves, front, and rear.

I have what I think is just the front half.

[Jac@stafford.net]

Jac is the Pacific optical 2 halves, front, and rear.

I have what I think is just the front half.

It was almost two parts with the middle housing an electrically controlled shutter which slipped into a slot. Yeah, two parts.

ACH! I forgot the later Pacific Optical (PO) in conventional shutter. Here is the PO which covers 5x5" mounted on a Sinar Alpina. Mounted in shutter.



Bellows removed



Showing how close the oversized rear element is to the focal plane when focused @ infinity - it becomes clear why it covers more than 4x5. It is not clear from this angle but the rear lens is greater than 4")



Hope this helps, Randy

Here is what it looks like on the bench. Note the extra large rear element cluster.



I have a handy machining tip for exactly placing the shutter if anyone is interested.

[Tin Can]

I only have the front. At least it was free...

Thanks.

[Jac@stafford.net]

I only have the front. At least it was free...

Thanks.

Oh, it did detach front and back!

This is what it looked like originally. Look at that mess of gears for the shutter!

[Tin Can]

Oh, it did detach front and back!

This is what it looked like originally. Look at that mess of gears for the shutter!

Clockwork custom Mil $$$

[B.S.Kumar]

I have a handy machining tip for exactly placing the shutter if anyone is interested.

Please tell. I'm assembling a lens (not this specific one) and would like to know.

Thanks,
Kumar

[Jac@stafford.net]

Clockwork custom Mil $$$

Not enough $$$ signs. $75,000 each is what I gathered.

You wanna see insanity? I tried to scoop the market on the PO optical from government sales years ago at $25 each, but some good old boy in Georgia beat me by $30 each and got most of 'em all. I got six and 4 were defective and went to the trash. Shit, couldn't even make ant burners of the scraps.

Now look at eBay # 302688014944

Insane

[Jac@stafford.net]

Please tell. I'm assembling a lens (not this specific er one) and would like to know.

Thanks,
Kumar

The tip is to first find where the shutter should be starting from the front lens side, then machine a relief between where the rear of the shutter should fit so there is a gap. Then machine spacer(s) (of the same diameter) to make the distance perfect to fill the gap. The spacers will be thin. It is most cost-effective to machine the spacers rather than trying to make the whole assembly perfect the first time.

Thanks for the nudge. If I ever pull the lenses from storage I will try to remember to make pictures of the technique!

[Tin Can]

Not enough $$$ signs. $75,000 each is what I gathered.

You wanna see insanity? I tried to scoop the market on the PO optical from government sales years ago at $25 each, but some good old boy in Georgia beat me by $30 each and got most of 'em all. I got six.

Now look at eBay # 302688014944

Insane

I won't tell my buddy who missed a lot of his father's goodies by not letting me fully in.

I wrote about him before. I got a lot of good stuff, but the pile was disorganized and filled a bedroom top to bottom. And side to side. Took us 3 days just to step in. I found the Leicas in a living room piano. He gave them away at NYC auction.

He could have bought his new 2007 Moto Guzzi he just picked up today close to you on the other side of the river.

Nice bike I insisted he run and get. Perfect for his Italian spirit!