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

[ic-racer]

Here it is attached to the bottom of the existing chrome shaft.

[ic-racer]

Now I need to order the 6x6 Ilford filter set and procure a 12x12" yellow filter for the filter drawer.

[Allen in Montreal]

The work you are doing on this project is incredible!
Beautiful.

[George W.]

Re: Durst L1840 Enlarger 8x10 ---head support removal???
Durst L1840+ CLS1840

1. the head is currently removed from the L1840 "head support"
2. i need now to disassemble the "head support" from the chassis

-there is a horizontal bar ca 3cm diameter, ca 50cm long; around this axis the enlarger "head support" can be turned
from vertical down, to left or right horizontal projection
Q: I would like to pull this horizontal axis up to the front, thus disassembling the "head support" from the enlarger chassis

-there is a mechanical stop limiting the rotation to 180 degrees
Q: must this mechanical stop be removed?

-this horizontal axes is perpendicularly traversed by a small bar of ca 0.5cm diameter, ca 9cm long
Q: must this small rod be removed?

-electrical wiring:
Q: must any cables be disconnected before removing the "head support" from the chassis? any special tools needed?

thanks for any possible advice,
...george

[ic-racer]

When I was fixing up my enlarger I heeded the advice of Eric Summerfield who e-mailed me the suggestion : 'The camera assembly (the bellows) does not come off. Don’t even think about it.'

My impression of removing the 'head support' (which is called the "camera" portion in the Durst literature, if we are thinking of the same thing) is that it was like assembling a locomotive; you may need some special equipment



Obviously, if it was built, it can be dissasembled. Perhaps you can post some pictures of how far apart it is and what you are trying fix.

[ic-racer]

Finally got the Ilford 6x6 in filters for my filter holder.

[ic-racer]

With the filter in place I could not detect any change in the resolution of the image viewed through a grain magnifier focusing device.

[ic-racer]

Ilford recommends using the multigrade filter set with a CC40Y filter when used in conjunction with the Aristo W45 bulb. That CC40Y filter was not so easy to find, so I got a CC30Y Rosco lighting filter to place in the filter drawer.

http://www.ilfordphoto.com/Webfiles/...0201152306.pdf

[Allen in Montreal]

Ilford recommends using the multigrade filter set with a CC40Y filter when used in conjunction with the Aristo W45 bulb. That CC40Y filter was not so easy to find, so I got a CC30Y Rosco lighting filter to place in the filter drawer.

http://www.ilfordphoto.com/Webfiles/...0201152306.pdf

I will be curious to see how this combo pans out for you. I don't have much experience with it as I use MG on the Leica enlarger from 35mm and graded on the 4x5 (until current stocks runs out, then I will move to MG there too) but in a the little sampling I did using a 40 yellow on an Aristo head, the grade changes were inconsistent in the sense that the actual change in grades on paper did not allows correspond to the change in the filter selected. I found it took much more tweaking than it should have.
I look forward to your feedback after having printed.

[ic-racer]

in a the little sampling I did using a 40 yellow on an Aristo head, the grade changes were inconsistent in the sense that the actual change in grades on paper did not allows correspond to the change in the filter selected. I found it took much more tweaking than it should have.
I look forward to your feedback after having printed.

I am expecting it to correspond to the graph below. With that in mind I know the #4.5 and #4 will not be of much use. If there is too much gap between the soft grades, I'm planning on 'split grade' printing those (ie 1/2 the time on each adjacent filter).

I hope to try it out this week.