A Site for Photographers by Photographers

Community > Forums > Medium Format > Optics > Leitz Prado Universal 6x6...

Featured Equipment Deals

Interview with Environmental Photographer: Peter Essick Read More

Interview with Environmental Photographer: Peter Essick

A conversation with National Geographic photographer, Peter Essick, author of Our Beautiful, Fragile World.

Latest Equipment Articles

Nikon D750 Review Read More

Nikon D750 Review

Nikon introduced the D750, the first full-frame DSLR to feature a tilting LCD and built-in Wi-Fi, in September 2014. In this in-depth review Shun Cheung discusses the ins and outs of this new offering...

Latest Learning Articles

Faces of Photo.net Slideshow Read More

Faces of Photo.net Slideshow

This selection of 25 faces is from the distinct collection of portraits on photo.net by our member photographers.


Leitz Prado Universal 6x6 projector - flatness error?

Chris Cavigioli , Jul 24, 2003; 03:30 p.m.

I have a Lietz-Wetzlar Prado Universal projector set up for projecting 6x6 (approx. same as 2"x2" I guess) slides. I am projecting a focusing test slide mounted in glass. I am using a f2.8/200mm lens.

The southeast corner is real sharp, real flat. The northwest corner shows ghosting (smears towards the SE corner).

I am trying to determine if there is a way to adjust the optics in the Prado. I already adjusted the bulb placement with the pinhole slide as described in the manual.

What a beautiful projector. see: http://3dculture.com/occ/leitz/leitz.htm Bummer the optics aren't lined up. I'd love to be able to fix this. Any hints? thanks, -chris is SF

Responses

Dick Roadnight , Jul 27, 2003; 06:46 p.m.

Are there any any loose elements in the lens?

Does the distortion move round if you rotate the lens?

Is the test slide absolutely flat?

Does the problem move round the screen if you re-orientate the silde?

Can you get the image in focus by moving the screen?

Do you need a lens carrier with that lens?

can you move the lens, and does it affect he image?

So... it could be:

the projector,

the adjustment of the bulb position.

The slide

The positioning of the slide

The condensors - do you need special condensors for that lens?

The arrangement of the condensors

The lens

The positioning of the lens

The perpendiculararity of the screen

Back to top

Notify me of Responses