Results 1 to 5 of 5

Thread: $39 Cold Light Head for 8X10

  1. #1

    Join Date
    Sep 2010
    Posts
    477

    $39 Cold Light Head for 8X10

    I need a small light box to have near the enlarger. In Home Depot I saw a 12"X12" LED fixture that looked good for $39. It has three switchable color temperatures, a warm white, a neutral white and a daylight. When I got it home and wired it up, I thought if it is 12"X12" it should drop right into the 8X10 Beseler enlarger like the factory cold light source. Well, the Beseler box is actually 11 3/4"X11 3/4", so it would not drop in. However, I put it on top of the housing, about 1/4" higher than the original sits when it drops in.

    I set up the enlarger to make an 11X14 print from an 8X10 negative. I could see the thing was bright, but to my surprise the projected daylight (same as W45 tube) image was only 1/2 stop less brightClick image for larger version. 

Name:	DSCF8742.jpg 
Views:	61 
Size:	30.5 KB 
ID:	186679Click image for larger version. 

Name:	DSCF8741.jpg 
Views:	64 
Size:	55.9 KB 
ID:	186680Click image for larger version. 

Name:	DSCF8740.jpg 
Views:	69 
Size:	66.1 KB 
ID:	186681Click image for larger version. 

Name:	DSCF8739.jpg 
Views:	66 
Size:	80.5 KB 
ID:	186682 than my Beseler source and the illumination was just as even as the Beseler. Afterwards, I noticed that the widow of the fixture is actually 9 3/4"X9 3/4", the same size as the width of the Beseler 8X10 negative carrier that was in place. The Beseler diffusion was still in place, so it that was removed, the Home Depot fixture which has its own diffuser might be equally bright.

    I'm not going to try to make prints with this thing, but it shows me that LED the cost of LED sources for enlarging is coming way down. When I need to replace the cold light, if ever as I have a complete spare, it will be easy and inexpensive. On the baseboard is my densitometer, a CibaChrome Exposure Monitor M3 that has served me well for years.

  2. #2

    Join Date
    Oct 2003
    Location
    St. Simons Island, Georgia
    Posts
    537

    Re: $39 Cold Light Head for 8X10

    Is this it?
    https://www.homedepot.com/p/Commerci...H-HD/304258319

    It might be good for contact printing, too. If it just came in UV.

  3. #3

    Join Date
    Sep 2010
    Posts
    477

    Re: $39 Cold Light Head for 8X10

    That's it. The diffuser has a fine pebble finish that would not be suitable for contact printing.

  4. #4

    Join Date
    Aug 2004
    Location
    NYC
    Posts
    186

    Re: $39 Cold Light Head for 8X10

    i bought one of those for my kitchen but it wasnt bright enough so i started using it as my light box.

    to use it on the enlarger is a great idea!

  5. #5

    Join Date
    Feb 2008
    Posts
    1,209

    Re: $39 Cold Light Head for 8X10

    They also have a 12x24 inch one!
    Real cameras are measured in inches...
    Not pixels.

    www.photocollective.org

Similar Threads

  1. cold light head for durst 8x10
    By Herb Cunningham in forum Darkroom: Equipment
    Replies: 5
    Last Post: 12-Sep-2007, 10:05
  2. building a 8x10 cold light head
    By Jeff Liao in forum Darkroom: Equipment
    Replies: 1
    Last Post: 17-Jun-2000, 00:47

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
  •