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Type: Posts; User: Jacek Zakowicz

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  1. cinematographers used to smear vaseline on the...

    cinematographers used to smear vaseline on the front element to get that effect. This way you can control the extend.
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    The newer version K35s were 50mm T1.4/1.5 not...

    The newer version K35s were 50mm T1.4/1.5 not 55mm. I guess that would correspond with Canon transition from a 55 breach mount aspherical to 50mm nfd
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    I don't think these tweaks are enough to warrant...

    I don't think these tweaks are enough to warrant "different design" moniker but to each their own...
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    Come to think of it since the motion picture...

    Come to think of it since the motion picture stock was mostly tungsten balanced and still stock daylight balanced the K35s needed to be warmer. From what I have seen the coatings on them have blue...
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    I think the biggest problem here is the...

    I think the biggest problem here is the understanding of the term "parfocal" I spent last 15 years trying to clarify it with obviously very poor results ;-)
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    The elements were rearranged pretty radically

    The elements were rearranged pretty radically
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    From what I have seen the fast 18mm K35 is based...

    From what I have seen the fast 18mm K35 is based on the 24mm with a wide angle front adapter, a'la aspheron. That explains the lack of light loss compared to the 24 and the coverage drop. The glass...
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    They look nice in pictures. In projection all the...

    They look nice in pictures. In projection all the ones I've seen looked pretty bad wide open. Focusing action was impossible to fix the image shift.
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    14mm FD is really an awful lens. Mechanically...

    14mm FD is really an awful lens. Mechanically very flimsy, optically soft and slow. There is really nothing appealing about it. sigma 14mm T2 is a better option to match the K35s IMO. Speed wise and...
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    And here it comes- the back ground story. Oh...

    And here it comes- the back ground story. Oh boy.... If one knows anything about glass....never mind ;-)
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    Devoted fan, I rest my case haha

    Devoted fan, I rest my case haha
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    Easy Clint, That was Elons joke. Typical for...

    Easy Clint,
    That was Elons joke. Typical for him, the marketing master. Being here you should figure it out. I think the bullet proofing is also a joke since ball bearing is about the most effective...
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    the speedbooster covers 16x24 (29mm diagonal) it...

    the speedbooster covers 16x24 (29mm diagonal)
    it should cover 14x27. Komodo sensor may be wider but it is lower (30.5mm diagonal)
    or maybe not....depends on the lens it's used with
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    These lenses are big and heavy. OK for studio...

    These lenses are big and heavy. OK for studio work but not ok for any non tripod work. Just figure out what your most common setups are and decide.
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    I think mechanically the SLR product I have seen...

    I think mechanically the SLR product I have seen so far have a long way to go. Poorly engineered and poorly assembled. Actually typical quality of an early Chinese product. I'm sure they will get...
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    Haha I remember that textured paint from my stint...

    Haha I remember that textured paint from my stint at Century Optics twenty five years ago. Definitely vintage look packaging. TBH I never liked it, not my cup of tea aesthetically....
  17. Thread: JIM

    by Jacek Zakowicz
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    Nice try Jim ;-) I may not be a great reader of...

    Nice try Jim ;-) I may not be a great reader of people characters but with you it is easy: I know you are trying to retire but , as much I think you've earned it and deserve it - I don't think you...
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    Just watched a review on the control ring. Very...

    Just watched a review on the control ring. Very slick....
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    I also don't think there are any "newer" sigmas...

    I also don't think there are any "newer" sigmas that are dedicated designs for minimized breathing. These newer lenses are just cosmetic and probably mechanical tweaks to improve the mechanics. The...
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    There is no such a thing as "reduced breathing "...

    There is no such a thing as "reduced breathing " in cine versions of still lenses. Breathing is an optical property- not mechanical. The only way to do that is a lot more complicated design with a...
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    [WTB] I have a set for sale that can be parted out:...

    I have a set for sale that can be parted out:
    https://www.facebook.com/groups/Vintage.Lens.Buyers.Club/permalink/2626220724094610/?sale_post_id=2626220724094610
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    +1 That would be awesome ;-)

    +1 That would be awesome ;-)
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    Guys just get a room ;-)

    Guys just get a room ;-)
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    Yes this footage reposting is out of control. I...

    Yes this footage reposting is out of control. I had to put him on my ignore list.
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    Sounds good- the second video deals with this...

    Sounds good- the second video deals with this issue where you have to refocus at the wide end
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