# Thread: Show us your home made camera...

1. ## Re: Show us your home made camera...

@ Jan Pedersen

If you want to know more about us you can see this links
Yes we drink Chablis with many glass.

http://trichromie.free.fr/trichromie...c-ste-vronique

You have your information ;-)

2. ## Re: Show us ..[OFF-TOPIC Oregonian Riesling] plus : replacing helicals by.. ?

[OFF-TOPIC]
two bottles but did you

Henri Gaud only allows disposable styrofoam coffee cups for wine tasting, in order that the proper temperature is maintained throughout the whole session

I take the opportunity that we have and Oregonian citizen on-line : we should try to convince Henri Gaud to visit Oregon some day. He could combine some new photographic subjects for the tri-color process and at the same time enjoy some of the best Riesling wines of the New World.
Does the Columbia river gorge (or wherever Oregonian Riesling is made) still produce those excellent white wines I experienced 20 years ago ?

[NOW BACK TO THE TOPIC]

An alternative to true helicals is simply to allow a wooden box to slide inside another.
One should keep in mind the simple design rule:
The amount of travel of the whole lens, required to change focus from infinity to one metre (3") is equal to the square of the focal length in milliimetres, divided by 1000.
For examples with a 90 mm, the required travel is 90x90/1000 = i.e. about 8 mm (approx 5/16")
This is still within reach of a wooden sliding box.

For a 55 mm, things become tricky 55x55 / 1000 = about 3 mm (approx 1/8") ; there, you need an helical.

3. ## Re: Show us ..[OFF-TOPIC Oregonian Riesling] plus : replacing helicals by.. ?

Originally Posted by Emmanuel BIGLER
[OFF-TOPIC]
...One should keep in mind the simple design rule:
The amount of travel of the whole lens, required to change focus from infinity to one metre (3") is equal to the square of the focal length in milliimetres, divided by 1000.
...
This is most useful. Thanks Emmanuel.

4. ## Re: Show us your home made camera...

Good food, good wine, good company and good photography,
does life get any better?

Well done Henri,
c'est ginale.

http://trichromie.free.fr/trichromie...oc-fvrier-2008

Originally Posted by Henri Gaud
@ Jan Pedersen

If you want to know more about us you can see this links
Yes we drink Chablis with many glass.

http://trichromie.free.fr/trichromie...c-ste-vronique

You have your information ;-)

5. ## Re: Show us your home made camera...

@ Allen

You can come in France
The next "Sainte Veronique" en 2010 is for 6 fabruary about 18 h in afternoon
You are welcome
If you make some photography for change

And you can drink Chablis with us

6. ## Re: Show us your home made camera...

Originally Posted by Allen in Montreal
Good food, good wine, good company and good photography,
does life get any better?

Well done Henri,
c'est ginale.
Tant que c'est pas génital, ça va...

7. ## Re: Show us your home made camera...

Originally Posted by GPS
Tant que c'est pas génital, ça va...
You are right

8. ## Re: Show us your home made camera...

Here are some of the most perfect home made cameras I've ever seen.
Part 1

Part 2

10. ## Re: Show us your home made camera...

Part 3

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