I always have been fascinated by photography.
But with the introduction of the digital camera it all became too easy, too predictable …to me.
So I forced myself to go back to the roots of real analog photography.
Not just by making the photograph itself, but by controlling the entire photographic process.

This brought me back to the middle of the 19th century, to the amazing Collodion wet plate process.
And every single day I feel challenged to refine and improve myself.

For my website please visit : www.alextimmermans.com

Alex Timmermans

"You don't take a picture, it's given to you"

donderdag 8 december 2011

Beautiful rare Derogy lens

Recently i bought a very early beautiful Derogy petzval lens for my small collection.
Every time i say to myself, i have to stop collecting stuff, but this one i couldn't resist......

The lens is dated between 1850 - 1860 so more than 150 years old.
A beautiful example of perfect handcraft.

The bayonet system makes this a rapidly convertible portrait/landscape lens.
The lens has a focal length of about 8" and it's speed is about f 3.8
unfortunately it has no flange, so if somebody could help me finding one i would be more than grateful !
Thread diameter is 88,6 mm.

I made you some pictures to show how the ingenious lens works.

 Standard portrait situation

fast opening with bajonet

 It has a double lens cap which can be taken apart.
One for the portrait lens and a smaller one for the land scape lens

Here you can see the aparture rings which were used in very early lenses

Mounted as a landscape lens including the smaller lens cap mounted at the front

4 opmerkingen:

  1. Small Collection???? :) Mooie vondst!!

  2. I have this same lens and I was confused why the rack and pinion motion does not control anything on the lens? Does your control focus?
    Mine is missing the lens cap and mounting flange as well.