Results 1 to 5 of 5

Thread: Elwood 5x7 laser alignment test

  1. #1
    Randy Moe's Avatar
    Join Date
    Dec 2011
    Posts
    10,252

    Elwood 5x7 laser alignment test

    I was about to remove this bench mount Elwood 5X7 from my new Darkroom build.

    I decided to test the alignment with a laser without fiddling.

    I shimmed the easel on the back side.

    This enlarger actually fell apart when moving in my bouncy cargo trailer. The hinge pin walked out and the main bit separated from the upright. I was dismayed, but soon after it went back together easily. I did not adjust it before this test.

    Here I test embedding a youtube video, also a first for me.

    1st try failed here's a youtube link

    https://youtu.be/K2_d7toipqE

    Got it to post directly after some fooling around and reading what was right there on the forum!

    If it doesn't work, I will try again.
    TIN CAN COLLEGE

  2. #2
    Randy Moe's Avatar
    Join Date
    Dec 2011
    Posts
    10,252

    Re: Elwood 5x7 laser alignment test

    Test 3

    TIN CAN COLLEGE

  3. #3
    ic-racer's Avatar
    Join Date
    Feb 2007
    Posts
    5,047

    Re: Elwood 5x7 laser alignment test

    Not sure if I understood the video, but one usually would bounce off optical glass plate or mirror held over the lens front flange and compare that to the spot bounced off the glass carrier. The two should land in the same spot. Once those are aligned (that is lens-to-negative) the alignment to the baseboard can have more leeway and may not even be adjustable on many enlargers.

    Exaggerated Analogy: In a small format camera the lens-to-negative alignment is very critical. Yet one can take a picture of a distant billboard and get it all in focus without any laser alignment.

    Click image for larger version. 

Name:	scans.jpg 
Views:	24 
Size:	64.1 KB 
ID:	185864
    Last edited by ic-racer; 30-Dec-2018 at 11:33.

  4. #4
    Randy Moe's Avatar
    Join Date
    Dec 2011
    Posts
    10,252

    Re: Elwood 5x7 laser alignment test

    Steve,

    I did that a little later. I put the mirror in the neg carrier. Very similar! Not too bad for what it is. It could be possible to make alignment far worse as the adjustments are 2 bolts pushing up and rocking on the short pin at the hinge.

    The bolts are 2" apart for a 40" high column. Not ideal.

    What is neat is the hinge allows wall projection. Never tried that.

    I had imagined the upright was tilted far from the baseboard. Not much!

    I have the same enlarger as a wall mount, no tilt. My last DR was setup with it. I may switch them.

    IMG-1566 by TIN CAN COLLEGE, on Flickr

    IMG-1572 by TIN CAN COLLEGE, on Flickr
    TIN CAN COLLEGE

  5. #5
    ic-racer's Avatar
    Join Date
    Feb 2007
    Posts
    5,047

    Re: Elwood 5x7 laser alignment test

    Looks good. I forgot those 5x7 Elwoods are 'table top' enlargers...

Similar Threads

  1. $20 LASER Enlarger Alignment Tool
    By jim10219 in forum LF DIY (Do It Yourself)
    Replies: 71
    Last Post: 30-Jun-2018, 11:29
  2. ilford 500 and versa lab alignment laser
    By wager123 in forum Darkroom: Equipment
    Replies: 5
    Last Post: 8-Nov-2017, 05:36
  3. Laser alignment
    By cyrus in forum Darkroom: Equipment
    Replies: 30
    Last Post: 24-Jun-2011, 16:22

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •