Page 71 of 76 FirstFirst ... 21616970717273 ... LastLast
Results 701 to 710 of 751

Thread: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

  1. #701

    Join Date
    Sep 2007
    Location
    Milan, Italy
    Posts
    346

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Quote Originally Posted by philcedozphotos View Post
    I’ve got a guy who may be able to 3d print a new one.


    Sent from my iPhone using Tapatalk
    now this starts to get interesting... which materials? cost per unit?

  2. #702
    PhilCedozPhotos
    Join Date
    May 2020
    Location
    Virginia
    Posts
    18

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Quote Originally Posted by Andrea Gazzoni View Post
    now this starts to get interesting... which materials? cost per unit?
    I donít know. Once I get a new one Iíll send him the old one with the new measurements. Weíll go from there.


    Sent from my iPhone using Tapatalk

  3. #703
    ic-racer's Avatar
    Join Date
    Feb 2007
    Posts
    5,730

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Quote Originally Posted by philcedozphotos View Post
    Iíve been looking for a large format enlarger for a while. Like you said I wanted one that had no circuits. This gear was a total surprise and probably the hardest thing to replace.

    Any ideas on converting to a bulb that doesnít get hotter than the sun?


    Sent from my iPhone using Tapatalk
    What head/bulb do you have? There were 5 different Durst heads and many other brands fit too.

  4. #704
    PhilCedozPhotos
    Join Date
    May 2020
    Location
    Virginia
    Posts
    18

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Quote Originally Posted by ic-racer View Post
    What head/bulb do you have? There were 5 different Durst heads and many other brands fit too.
    Itís the Laborator condenser head.


    Sent from my iPhone using Tapatalk

  5. #705

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Maybe you can take the width and thickness of the stripped gear as well as what is on the other side mating it and replace them both concurrently as a pair? The shaft thickness can be adjusted as necessary as is the cotter pin hole. Sure might be easier than finding the original specs. By the way I have two brand new Lacon 380 184 condensers in their boxes and another barely used from a day long ago.

  6. #706
    PhilCedozPhotos
    Join Date
    May 2020
    Location
    Virginia
    Posts
    18

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Quote Originally Posted by Michael Kadillak View Post
    Maybe you can take the width and thickness of the stripped gear as well as what is on the other side mating it and replace them both concurrently as a pair? The shaft thickness can be adjusted as necessary as is the cotter pin hole. Sure might be easier than finding the original specs. By the way I have two brand new Lacon 380 184 condensers in their boxes and another barely used from a day long ago.

    That was one option I have considered. I have 2 Lacon 380s and 1 350. This pic was just taken in the middle of reassembly in my darkroom. I usually do 6x6. Will the condenser size matter that much?

  7. #707
    PhilCedozPhotos
    Join Date
    May 2020
    Location
    Virginia
    Posts
    18

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...


    The people selling it were an environmental planning company. They used to get aerial negatives and blow them up to make maps, etc. It came with this 2 glass carrier that is marked Foto-Optical Corp. anyone know anything about these?


    Sent from my iPhone using Tapatalk

  8. #708
    ic-racer's Avatar
    Join Date
    Feb 2007
    Posts
    5,730

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Condenser focal length and lens focal length need to be coordinated via the chart in the manual to ensure even distribution of light. The way I think of it is the condensers are focusing the light at a certain spot and the lens needs to be at that spot. If the lens is too long or too short, it will not be in the right spot. If you are just using the center of the light (6x6cm) you might be able to violate this and get good results. That is you could try those 380 condensers with a 80mm or 105mm lens and see how even the projected field is.

  9. #709
    ic-racer's Avatar
    Join Date
    Feb 2007
    Posts
    5,730

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Every time bulbs for that head are discussed I always post the same thing. Consider using an diffusion disk as the target for the condensers (rather than the globe of the hard-to-find lamp) and illuminate the diffusion disk from behind with any light you want. That is how my Philips condenser color head works. You could use LED or Halogen or anything else for illumination behind the disk.
    Click image for larger version. 

Name:	Philips.jpg 
Views:	12 
Size:	42.4 KB 
ID:	204058Click image for larger version. 

Name:	Screen Shot 2019-03-18 at 9.35.51 AM.png 
Views:	10 
Size:	199.4 KB 
ID:	204057

  10. #710
    PhilCedozPhotos
    Join Date
    May 2020
    Location
    Virginia
    Posts
    18

    Re: Durst L1840 Enlarger 8x10 10x10--Everything you wanted to know...

    Quote Originally Posted by ic-racer View Post
    Every time bulbs for that head are discussed I always post the same thing. Consider using an diffusion disk as the target for the condensers (rather than the globe of the hard-to-find lamp) and illuminate the diffusion disk from behind with any light you want. That is how my Philips condenser color head works. You could use LED or Halogen or anything else for illumination behind the disk.
    Click image for larger version. 

Name:	Philips.jpg 
Views:	12 
Size:	42.4 KB 
ID:	204058Click image for larger version. 

Name:	Screen Shot 2019-03-18 at 9.35.51 AM.png 
Views:	10 
Size:	199.4 KB 
ID:	204057
    Awesome, where do i get one? Is it special material or just a translucent plastic.


    Sent from my iPad using Tapatalk

Similar Threads

  1. 8X10 ENLARGER
    By ric YAMA in forum Resources
    Replies: 7
    Last Post: 28-Mar-2011, 12:26
  2. 8x10 Enlarger...HELP please talk me out of it!!
    By ic-racer in forum Darkroom: Equipment
    Replies: 92
    Last Post: 18-Feb-2008, 07:09
  3. cold light head for durst 8x10
    By Herb Cunningham in forum Darkroom: Equipment
    Replies: 5
    Last Post: 12-Sep-2007, 10:05
  4. Durst 184 8x10 enlarger
    By David Michael Bigeleisen in forum Darkroom: Equipment
    Replies: 4
    Last Post: 27-Jul-2007, 06:29
  5. Fotar 8x10 Enlarger used horizontally?
    By Eric_6227 in forum Darkroom: Equipment
    Replies: 6
    Last Post: 22-Apr-2006, 13:02

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
  •