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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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  1. K

    Possible alternative to barlows/teleconverters

    with the lens connector mounted the iris give some vignette even wide open... had my hopes up :)
  2. K

    Possible alternative to barlows/teleconverters

    short legs are inverted... long legs is giving 3xmag, but not biconcave... in the first section close to the cam there was a biconcave lens that gives roughly 1,5-1,6xmag
  3. K

    Possible alternative to barlows/teleconverters

    Here is the mountsection with Iris and TN inside, fits perfectly as a cameraadapter, now I just need an oly-canon adapter... and with a bit of luck it will work hehe. If it works I have apeture control and adapter and TN in one module...
  4. K

    Possible alternative to barlows/teleconverters

    I have found a biconvex lens sitting right infront of the iris... that renders 1,5-1,6x when placed in the adapter. So this must be the TN... but other thing gave 3xmag... have to play more with both of them hehe
  5. K

    Possible alternative to barlows/teleconverters

    test well i thought I would just test the 3 element (doublet+single) to see if it magnifies anything. pictures taken through window with alot of greasy fingers from the kids and without much attention to focus... I placed the elements as close at I could get them in the t-adapter and get...
  6. K

    Possible alternative to barlows/teleconverters

    actually the from one of the focussing part consist of 3 elements: front lens is planoconcave, next seems to be two pieces stuck together forming a negative meniscus, so front piece fits right over it
  7. K

    Possible alternative to barlows/teleconverters

    vivitar here is a picture of the pieces... so I suspect it should be in the middle section. closest to cam is 1glass and infront two elements... to me it doesnot seem like any are biconcave
  8. K

    Possible alternative to barlows/teleconverters

    turns out to be a 80-200 f4.5... these can be from 3 different factories ( Kiron, Komine and Kobori) whereas the 100-200 only been made by komine... have to investigate further From the camera end lens looks like this: Lens-iris-lens-zoom mekanism with 1lens at the back and 2 lenses put...
  9. K

    Possible alternative to barlows/teleconverters

    ooo a quick question, I know I asked before, but now I cannot find it...: how does the TN effect the fstopo/aperture???
  10. K

    Possible alternative to barlows/teleconverters

    just managed to get myself a vivitar macro 100-200mm: believe it says Sakar MC - Zoom C/Macro with a 2x teleconverter. So now I am going to kill it hehe... It is for Olympus mount, So if anyone can use the housing or the 2x converter let me know
  11. K

    Possible alternative to barlows/teleconverters

    Paul you have pushed the market... I cannot get any 100-xxx lenses below 40GBP sent to Denmark:P Was hoping to collect a lens barrel and a teleneg for when I get a scope
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