Digital BW, The Print

A professionally made device for this is the Zig-Align alignment system which is basically a mirror with a hole in the middle of it which mounts on the lens like a filter and you look through it to a mirror placed on the copy board. When the alignment is perfect you’ll see an infinite ring of concentric circles through the viewfinder.

http://www.zig-align.com/



From: mailto:DigitalBlackandWhiteThePrint@yahoogroups.com 
Sent: Friday, February 01, 2019 2:40 AM
To: DigitalB&WPrint 
Subject: Re: [Digital BW] Re: Digitizing old medium format negatives




I'm in the middle of preparing for a show, but I've posted an image of my "copy stand" that uses my Beseler enlarger frame and Omega head.  See http://www.paulroark.com/BW-Info/Negative-copying-setup.jpg 

When a flat mirror is placed where the negative carrier will later be placed (on top of the light source that is on the enlarger baseboard), the setup is aligned correctly when the image of the reflected camera macro lens is centered in the camera viewfinder.  Digital cameras like the Sony have a flip up screen on their backs that allow you to see when the image is centered.  There is an adjustment on the enlarger that controls one axis (forward-backward) and the camera can rotate around its tripod screw to control the other axis (right and left).

Hope this helps.

Paul
www.PaulRoark.com 

On Thu, Jan 31, 2019 at 10:40 AM becavena@... [DigitalBlackandWhiteThePrint] <DigitalBlackandWhiteThePrint@...m> wrote:

    
  Paul,  Can you say a little more about using a mirror for alignment?  How about thoughts on other light sources?  (My Nikon 8000 died a year ago.  I have lots of old 120, 4x5, and odd sizes in between that I'd like to scan but the options for doing so are limited.)  And thanks for starting up a conversation on this.