Filters for Zeiss Ikonta

Discussion in 'Medium Format Cameras and Accessories' started by jmccl@yahoo.com, Dec 28, 2012.

  1. jmccl@yahoo.com

    jmccl@yahoo.com Member

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    Santa showed up with a Zeiss Ikonta 6X9 sporting a Tessar 10,5 cm lens with Compur-Rapid shutter. There is no threading on the lens, so I can't tell how I could attach a filter. I didn't see anything on B&H other than threaded filters. So, I am in need of education please.

    Thanks

    Jim
     
  2. BrianShaw

    BrianShaw Member

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    Hi Jim,

    I have no experience with Ikonta, other than a lust for one... but most lenses of that description use push-on filters. One way is to use Kodak series filters (series number indicates the size, Google the Wikipedia "filters"). You'd meaure the outside of your lens, buy a series adapters in that size, and then the filters/hood goes into that. The filters have no threads but sit in the adapter and are held in with either a retaining ring or a hood. Series adapters, filters, and hoods are still fairly easily available on ebay.
     
  3. Peltigera

    Peltigera Member

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    Zeiss produced a series of push-on filters in a number of sizes. I don't know if these are available new, but they are fairly common on Ebay. I suspect you are looking at a 32 mm fit - that is the size of all my 1930s Zeiss Ikon folders.

    See here:
     
  4. pbromaghin

    pbromaghin Subscriber

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    You've got yourself a really great camera. Here's an article that explains Series filters.

    http://silverbased.org/series-filters/

    They are sized in Roman numerals. My Ikonta 6x6 with a 70mm lens uses a Series VI. As Peltigera says, that might be the size you need, or maybe a VII. Don't bother looking for anything new as this whole system has been obsolete for about 40 years. You can usually find them pretty cheap at photo swap meets.
     
  5. ljsegil

    ljsegil Subscriber

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    I have a very early vintage Ikonta Super C 6x9 530/2 with a 10.5cm Tessar f/4.5 SN1538091 in a Compur Shutter SN12225524, Zeiss Ikon body SN Y 55030, which may match yours. The lens takes 37mm push on filters and hoods. The Zeiss filters and hoods are sized to enable some stacking. However, my camera will not close with any filter in place on the lens. I found the filters readily available on eBay several years ago (ca. 2010 is about when I accumulated them), and in surprisingly good condition.
    The camera is a joy to use and behold, and the Tessar produces its classic magic, surprisingly nicely in color as well as monochrome despite its lack of coating. I consider the camera one of my most fortunate finds over my too many years of over-accumulating gear. It was my first and remains my favorite folder (even over a Bessa RF with f/3.5 Heliar, nice images, but nowhere near as pleasant a shooter).
    Larry
     
  6. DWThomas

    DWThomas Subscriber

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    I have an Ercona II, an East German Ikonta with CZJ Tessar, that works with 37 mm push-on filters. It is a bit tricky, as they go down into a deep groove in the lens barrel. It looks to me as though a 40.5 mm push-on might work over the outside of the knurling too, though I've not tried it. So far I have some 37 mm push-ons, and have also lightly machined a Series VI push-on adapter to fit in the groove and use series filters already in hand.

    Unfortunately, 37 mm push-ons apparently fit the Voigtländer Bessa II, which adds some collectable value to the prices, especially the Voigtländer branded ones. I've not found them as common on ePrey as i had hoped. I can't remember when the transition occurred, but it seems series filters went the way of the dodo several decades back.

    I have also read somewhere that the knurling on the Zeiss ikonta actually has a screw thread as part of the pattern and that there were female threaded 40.x mm adapters or filters, but I've never seen anything to confirm that notion. And I don't know if all vintages were that way; my Ercona appears to be a straight knurl, no thread.

    As someone upthread noted, the camera doesn't close with a filter in place, a compromise for compactness when folded. They are really nice cameras -- even my East German imitation (which actually came from the original Zeiss plant).
     
  7. elekm

    elekm Member

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    You should be able to buy original Zeiss Ikon-branded filters for a reasonable amount. I think that I paid on average about $5 for each of my filters: Dark red, orange, green and yellow.

    I also found a nice push-on lens shade that came with a bunch of other things.

    The later Ikonta cameras used filters that screwed onto the outside of the lens: 35.5mm filters for 6x4.5 and 6x6 and 40.5mm for 6x9.

    These filter sizes were also used by other Zeiss Ikon cameras (Ikoflex, Tenax II, Contax, etc.).

    Enjoy that camera. I've made some great images with Tessar-equipped Ikontas and Super Ikontas.
     
  8. elekm

    elekm Member

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    Larry, does your camera have the plunger release next to the shutter or a left-hand shutter release on the body?

    Just curious. I have one with the plunger and a second with the body release. This camera does not have double-exposure prevention.

    And I agree that it's an outstanding camera to use, and the photos are top-notch.
     
  9. BMbikerider

    BMbikerider Member

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    Filters

    You could try E Mailing a UK company called 'SRB Griturn'. Just Google the name. They custom make filters of any size and fitting and push on filters are probably a stock item anyway
     
  10. ljsegil

    ljsegil Subscriber

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    Hi Mike,
    My camera has the plunger type shutter release at the bottom right (facing forward) of the shutter assembly, at the front of the camera, below the armature for the rangefinder window and focusing wheel. That shutter and focusing control location took a bit to become familiar, but now I find that when my right hand is well positioned for focusing or firing the shutter it is helping to stabilize the camera as well. My camera also does not have any double exposure prevention mechanism. It's a simple mechanical winder below the takeup spool with red window frame counting and nothing to keep you from winding past the next frame, or more should you really lose your concentration. Remarkably, despite the simplicity, the frame spacing is right on when the camera is correctly wound according to the frame numbers in the appropriate window.
    Larry
     
  11. pbromaghin

    pbromaghin Subscriber

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    Ok, old thread, but I now have one of the ikontas that uses these filters. I think they were introduced at a time when Zeiss was suffering from low volume and not being a major player in the marketplace. It seems that the filter is the female side of this matchup and screws onto the outside of the lens. I have looked at a photo swap meet for these with no success, but will keep trying. In the meantime, does anybody have any ideas how I can find these filters.
     
  12. DWThomas

    DWThomas Subscriber

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    I recall several years back that Jurgen ("certo6") on ePrey had a lens hood of that sort for sale, going on at some length about the rarity of the beast. Until then I had no idea such a thing was done, that is, apparently the outer diameter of the barrel appears to be knurled -- but the circumferential grooves are a helix! As such, my Ercona appears it may be such an item. (Old age and incipient cataracts make it tough to tell!) The Ercona (II with CZJ Tessar) also has a deep groove in the front of the lens barrel that takes a 37mm push-on -- if the edge is not too thick, that's how I've been dealing. Don't know if the unit from the "West German" side has the same configuration.

    I'm thinking one might be able to use a Series 6 adapter, or maybe a 40-something to 46 or 49mm step-up ring as a semi-ready piece of material if one could bore the inside and cut the proper thread on it. I assume the thread would be metric, which here in the US of A would reduce the likelihood the crafty machinist next door would be able to do it as a favor, even if he wanted to. I fear trying to get something from a custom machine shop would cost more than the camera, although I admit to never having had dealings of that sort.

    The third row in this gallery shows what I have done with the Ercona -- for the 2¢ it may be worth.
     
    Last edited by a moderator: Dec 13, 2015
  13. jmccl@yahoo.com

    jmccl@yahoo.com Member

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    Wow, interesting to see this thread resuscitated after all these years. I did learn from another forum that the Ikonta I have takes a filter with a 37mm female thread that goes on over the knurled surface of the focusing ring.
     
  14. DWThomas

    DWThomas Subscriber

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    I wonder what the actual diameter and thread pitch is. It might suggest a stackable filter of that size could be flipped and the female thread screwed on. Be tough to add a lens hood though.

    I have never actually found an "official" manual for my Ercona II, but a couple of years back someone pointed me to a website, David Reichert I believe, that had a manual for a Zeiss Ikonta 523-2 which appears to be an extremely close approximation. It claims "40.5mm filters are screwed and 42mm filters slipped on the front lens mount ..." It also says the camera can be closed with one on, which I certainly can't do with the adapter. So anyway, it sounds as though your model has a slightly smaller lens barrel. "One of these days" I should look into all this a bit more. :blink:

    Oh, and I note that if a slip on is just a hair too large, it will slide down far enough to cover the distance scale for focusing -- oops!
     
    Last edited by a moderator: Dec 14, 2015
  15. pbromaghin

    pbromaghin Subscriber

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    Jurgen currently doesn't have any 35.5 mm filters listed. Maybe I'll send him an email.
     
  16. jmccl@yahoo.com

    jmccl@yahoo.com Member

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    correction

    I thought I edited my previous input. I have a 40.5 filter and the female side threads over the knurled focus ring. I also have 37mm Walz filters that fit into the recess in the lens barrel.
     
  17. pbromaghin

    pbromaghin Subscriber

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    I measured it and the 75mm on my 523/16 takes a 35.5 filter. I emailed Jurgen Kreckel and he says he has a bunch in stock.
     
  18. GRHazelton

    GRHazelton Subscriber

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  19. pbromaghin

    pbromaghin Subscriber

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    Oh, nice find. Bookmarked!