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Thread: How to Mount a Copal 3 lens on my Toyo 45AX?

  1. #1

    How to Mount a Copal 3 lens on my Toyo 45AX?

    I have a Toyo 45AX. Now I am getting the superb new Schneider Apo Tele Xenar 400 /5.6 Compact lens. This is not huge lens but does have a Copal #3 shutter.

    Is there anyway to make lens this fit on my Toyo 45AX? Toyo does not make a #3 l ensboard for the 45AX. Is the diameter of the #3 hole more than the 110mm of the lensboard? Is that why?

    I can get a Linhof Technika lensboard in #3. And can also get a Linhof to Toyo a dapter. Will this solution work?

    Please help! I am desperate as I have already ordered and paid for the lens!

    Thank you!

  2. #2

    How to Mount a Copal 3 lens on my Toyo 45AX?

    If you want to avoid the cost of the Linhof Technica board, you can get a generic (not Linhof not Wista but no name possibly from Bromwell) Technica #3 board from B&H.

    This does not answer your question about whether it will actually work, however.
    John Hennessy

  3. #3

    How to Mount a Copal 3 lens on my Toyo 45AX?

    One thing I forgot to mention is that Toyo does sell a blank lensboard. But who one earth do you drill a hole into it? Is there a company out there that can drill a hole?

  4. #4
    Whatever David A. Goldfarb's Avatar
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    How to Mount a Copal 3 lens on my Toyo 45AX?

    Steve Grimes at www.skgrimes.com will drill lensboards.

  5. #5

    How to Mount a Copal 3 lens on my Toyo 45AX?

    Sol,

    Just buy a pre-drilled or undrilled Toyo board and have it drilled to the proper size by a competent machinist. If you don't have one in your area, as David mentioned, Steve Grimes does this work and is very good at it. Also, if you do have a local machinist you can work with, the hole dimensions for all the standard shutter sizes can be found on Steve's very informative web site at:

    http://www.skgrimes.com

    Unless you already have all your other lenses mounted in Linhof boards, the Toyo - Linhof adapter is a very expensive solution to a problem that has a much simpler and less expensive solution.

    Finally, you might also consider a Canham board. Canham makes a pre-drilled #3 board that sells for $30 new. One precaution: Toyo 110mm boards fit the Canham, but in my experience, it can be a rather tight fit. Since I don't own a Toyo, I haven't tried a Canham board on a Toyo. In theory, it should fit, but best to try, or ask some one who has, before buying. The Canham boards are very nicely machined, and at $30 they are a bargain compared to what most other manufacturers charge for metal lens boards. You might want to call someone like Jeff Taugner at Badger Graphic (800-558-5350) to ask for guidance. Badger sells both Toyo and Canham, so he should be able to try a Canham board on a Toyo camera and let you know how it fits.

    Good luck, and please let us know how you like your new APO Tele Xenar. It looks like a great long lens for cameras with limited bellows draw.

    Kerry

  6. #6

    How to Mount a Copal 3 lens on my Toyo 45AX?

    Any machinist can drill any size hole you want in a blank board. You can get adjustable hole cutters to fit any drill press. It ought to be a five minute job. Lens boards aren't rocket science, even though some companies would have you believe they are to justify obscene prices for them.

  7. #7

    How to Mount a Copal 3 lens on my Toyo 45AX?

    Thanks to all that replied. Looks like I will get one of my #1 lensboards and have Steve Grimes turn it into a #3. I hope the Apo Tele Xenar will then work effortlessly with my Toyo 45AX.

    I will let you know what I think of the lens when I get it. I got it because of its good coverage and super fast speed. I also got a great deal on it. I paid $1475 for it, which makes it a bargain compared to the Nikon T ED's.

  8. #8

    How to Mount a Copal 3 lens on my Toyo 45AX?

    You should not have any problem fitting this lens on a Toyo 110 mm lensboard. Th e hole for a Copal #3 is 65,3 mm .If drilled #3 sizes are not available, you might have to get a plain undrilled boar d and have it drilled (you can also do it yourself). Is the AX a flatbed? If it is like the A II in terms of flange (324mm ?), a slightly extended lensboard would give you better close-up possibilities (I think the lens has 285mm at infinity). I don't think Toyo has one but you can have a machinist make you one from a flat lenboard, adding a 4 cm. barrel (more might add too much stress to the camera) or find a third parties solution. I am myself considering the 10cm (when combined) extension tubes from Wista (I have Linhof type lensboards) to give my VX some more extension. (Can be seen on this web page

    http://www.wista.co.jp/e_wista/e_show/e_acces/e_acces2/e_acces2.htm

    Would you be willing to give us some feedback on how this lens performs on your camera? I would be highly interested! Thanks.

  9. #9

    How to Mount a Copal 3 lens on my Toyo 45AX?

    Seems a lot has already been said while I was preparing my answer!

  10. #10

    How to Mount a Copal 3 lens on my Toyo 45AX?

    Paul,

    The 45AX is identical to the 45AII with the exception of the revolving back. The maximum extension is 321mm. I also have a 100mm extension back so I should be able to use the lens for some nice portraits too. I don't want the extension too much in the front beacause like you said that will upset the balance and it is a heavy lens.

    Thanks.

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