Darkroom Diptyches?

[nickstreme]

Can someone explain how to do this for me? I just want two different prints on the same piece of paper, with a plain white backround.

 

[polyglot]

Figure out both of the exposures, then make both of the exposures on the the paper before developing it. You'll probably want to cover up the other half of the paper while doing each exposure.

 

[nickstreme]

Yeah, I get the concept, just need more of the details. Should I just get two negative holders instead of switching the negatives inbetween exposures?

 

[Troy]

Don't over think it. Try it the simplest way you can come up with first. Then, if it's not quite right, start adding other factors, complications and refinements until you get what you want.

 

[George Collier]

I do them by making separate prints and mounting them together - a whole nother subject.
The last time I did what you are trying to, I made the test prints for the first one (whichever is most critical), being sure to make a final print of the edge that will adjoin the other one. That is, if you start with the left side, be sure you finish with a long vertical "final" strip of the right side of that image. Then make the final exposure on the final paper, covering the right side, as suggested above. Then put that final away. You will need to mark somehow the corners of that image (little dot impressions with a pencil).
Then do the testing for the right one, including a final strip of the left edge, and make sure it conforms with the right edge of the left image. Then put the final print in, covering the left side, and expose.
I found that doing all the testing with both images, then the final image had too many issues, what with changing negs, etc. Also, I found that exposures were more reliable right after testing, than done later, but I don't know why.
I did a print once with 9 exposures, making the final print a good hour or more after the first test, and the exposures were all over the place.

 

[Rick A]

You can do it by making a hinged mask. I tryed this some years ago, using laminated black paper on one side, white on reverse with a tape hinge in the middle.This gives you a white surface to focus on, and a black light block to keep light out of the side you are not exposing. With white side up, focus and compose first print. then "open" the one side of the mask you composed on. After this exposure, close the mask, slide the easel over and focus and compose for second exposure. Open second side, and make exposure. Process as normal. I hope you didn't get confused by this, I thought it simple at the time, and it worked for me.

Rick

 

[Kirk Keyes]

Get two enlargers and two easels - that's the easiest way.

 

[MartinP]

A three blade (or four, but I don't have one) easel and a little bit of careful measuring works for me (Christmas cards last year).

 

[DanielStone]

two enlargers would be easiest, but if you only have one, this is how I've done it at school. we were given an assignment to print a series of photographs, and mount them in the same mount board with multiple cutouts.

I took some 8x10 paper, and with a bladed easel(taped down to the baseboard), I proceeded to load 2 neg carriers with the negs to be printed, printed one to find out times, etc....

same for 2nd neg...

then took 4 bladed easel with size set to 4.75x6.75(almost the same dimensions as 5x7) but with small borders around each of the sides so no bleed printing

proceeded to print 1st, then load, recompose, etc... 2nd neg, and print.

just flip the paper around. or mark out on your easel marks that you need to move the paper to, kinda like registration marks.

-Dan