Help with solution to print 6x9 on 6x7 enlarger

Discussion in 'Darkroom Equipment' started by Newt_on_Swings, Jun 17, 2012.

  1. Newt_on_Swings

    Newt_on_Swings Member

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    I have been shooting 6x9 on my fuji 690ii, it's been great but I can only print crops and not the full frame.

    I currently have a lpl 670xl enlarger as well as the universal glass carrier. The glass is large enough to sit a 6x9 negative on perfectly but the adjustable cropping masks blocks out a large amount of negative. I know that the max stated size is 6x7 but there seems to be enough illumination to do 6x9 from the mixing chamber/diffusion box output opening size.

    I remember someone in the past mentioning how to convert it for 6x9, but when I took it apart, there is no way without trimming the metal cropping vanes. Cutting the plastic stops only gains ~1mm of width and then you encounter sunk in metal screw posts. I need about 8mm on each side to have the metal vanes clear.

    Is the only solution to build a custom carrier?

    If anyone has solved this problem please let me know. Or has instructions or an example of a custom carrier for this enlarger. Thanks
     
  2. eddie

    eddie Member

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    Why don't you make one out of matboard?
     
  3. Newt_on_Swings

    Newt_on_Swings Member

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    I was thinking about that with black matt board or cutting away a 6x6 metal carrier I had to fit 6x9 with a dremel. The problem is negative flatness with something the size of 6x9, the universal carrier is ideal because it has two glass surfaces to press the negs flat. Anti newton on top as well.

    I can rip out the carriers masks But removing the sliding masks will reduce the functionality of the carrier as i print half frame, double half frames, 35mm, 35mm black edged, and 6x6 with the use of masks.
     
  4. eddie

    eddie Member

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    I wouldn't tear up the carrier you have. I'd use the mat board idea, just to make sure it will illuminate the entire negative evenly. If it does, then use the dremel on your 6x6.
     
  5. ozphoto

    ozphoto Subscriber

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    I print 6x9 using the LPL universal carrier minus the blades.

    I carefully removed them and store them safely and print 6x9 from my 120 folder easily. It's really easy to do - but could be annoying if you wanted to print 6x7 or other sizes, which is why I picked up a second carrier, just to do this. :smile:
     
  6. Newt_on_Swings

    Newt_on_Swings Member

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    If only they popped up more often, it took me awhile to get the glass carrier with antinewton glass at a reasonable price. Id love to have another for this option. But for now I guess I'll try with the Matt board, and maybe if I can find two thin sheets of glass to make an all glass sandwich carrier.
     
  7. ozphoto

    ozphoto Subscriber

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    I had the same problem - ended up getting one when I flew to Japan for a photoshoot. (At the time the exchange rate made it a great deal for me, so I couldn't pass it up!)
     
  8. Newt_on_Swings

    Newt_on_Swings Member

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    Well it's good to hear confirmation that 6x9 works well on the lpl enlarger I have.
    Btw what length lens do you print with? Right now I don't have anything longer than the 80mm rodagon that I use for 6x6. I was hoping i could sneak by. Do you use a 105mm? As I was also concerned with the thread size if larger than 39mm would not fit the lens ring/board with these longer lenses.
     
  9. ozphoto

    ozphoto Subscriber

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    I use a 105mm - it was chosen for my 6x7 negs (I don't shoot 6x6) but works perfectly well with my 6x9.

    My Schneider was a smaller thread actually (older model) so I had to buy a step-up ring for it to fit my 39mm lensboard; just picked up a Rodagon 150mm, which has a 39mm thread. If I remember correctly, LPL make different sized lens boards, so even if you picked up a different thread size, you could still fit it to the enlarger.

    The 105mm I picked up was much cheaper than many I looked at (possibly because of the thread size??), so even with needing to buy the adapter, it still came in under what most of the 39mm were going for. It's an older model (60s/70s maybe) but it's pin sharp, has great contrast, and in my opinion a real bargain.
     
  10. Newt_on_Swings

    Newt_on_Swings Member

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    Ah cool thanks for the info. :smile:
     
  11. Newt_on_Swings

    Newt_on_Swings Member

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    Just an update if anyone in the future wanted to go this route for printing 6x9 on LPL machines:

    Shortly after these posts I cobbled together a mat board carrier out of some black mat board. As I suspected the negatives could not sit flat at all, and when the mat carrier was inserted and locked down (the LPL 670XL has a spring tensioned locking negative carrier slot) the locking mechanism bent the paper board. There was also significant light leakage around the sides and bottom.

    The solution to this was to take apart another negative carrier and use its bottom portion as a stable base and guide for the enlarger head. I therefore took apart a 6x6 carrier, only 4 screws, two are secured with small nuts (dont lose these) and two metal clips that hold the opening top portion. The bottom of the carrier is plastic and the base is molded to fit the enlarger head securely and also aid as a guide when inserting.

    I took a glass sheet and cut out two pieces of glass, and taped the whole thing up together. Mat board with 6x9 openings, and two pieces of glass on the inside. This was taped onto the bottom portion of the 6x6 negative carrier. It worked very well! It was stiff enough and stable when inserted and locked down, and the glass kept the negatives flat, also the original base prevented light leaks.

    Yesterday I finally received another universal glass negative carrier in the mail and proceeded to take it apart. The bottom opens up easily with the removal of 4 screws, and the masking vanes are then accessible. I tried thinking about how they were assembled and doing the reverse to remove them but they were locked in pretty well. The yellow tabs that control the vanes lock them in, the metal vanes were inserted into them on assembly, but I couldn't pry them out. The only way to get them out was to bend the vanes slightly to remove them. The metal bends easily so you wanna go slow and not over do it. So just pull up on the vanes and you can wiggle them out. between the vanes and the carrier is a small piece of spring steel that tensions the masking vane to the carrier, you can see it in one of my attached images, dont lose these as these keep the blades in place and not sliding around in the carrier. And after replacing the bottom, you have a 6x7 carrier that fits 6x9 with a bit of the rebate showing on the edges.

    The attached images show my initial mat board and glass carrier as well as the altered universal carrier.

    I have been getting away with printing the images on an 80mm f4 componon and a 60mm WA rodagon. With the 80 I lose a tiny bit on the sides, with the WA it goes right to the edge, but I cant print the side rebates only the top and bottom. I'll have to spring for a 100 or 105mm lens sometime, but as of recent the prices for them were a bit high. A 80mm WA would be awesome as well. (Ive been using the WA lenses a lot 40mm and 80mm and they are nice to print larger with)
     

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  12. Rick A

    Rick A Subscriber

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    I use a Wollensak 90mm for printing 6x9 with my D-6. This lens was designed for 6x9 format and is slightly wide angle. The down side is it's a 25mm mount, originally they came packaged with a LTM adaptor but most probably dont have that any more. This is a sharp lens and was state of the art in its day.
     
  13. Newt_on_Swings

    Newt_on_Swings Member

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    I will keep a lookout for that 90mm lens. I had acquired a older Schneider 80mm lens in a 25mm mount when I bought my used 4x5 enlarger but it was in a box of miscellany. So by chance I found a 25-39mm plastic adapter for $10 which worked perfectly. The older lens worked quite well, but I already had a more recent 80mm. I should be able to use that same adapter for that 90mm.
     
  14. Rick A

    Rick A Subscriber

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    I think I have an extra 90mm Wolly in my DR, PM me later and if it's there I'll make you a good deal on it.