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  1. C300: maybe sigma 17-70? although it ramps from 2.8 to...

    maybe sigma 17-70? although it ramps from 2.8 to 4

    https://www.bhphotovideo.com/c/product/909806-REG/Sigma_884101_17_70mm_f_2_8_4_DC_Macro.html

    it is an aps-c lens sold for other mounts in...
  2. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: Supposedly the focus by wire on the 16-35 is much...

    Supposedly the focus by wire on the 16-35 is much improved. Of course, it could only ever be as good or worse for manual focus as proper mechanical control...

    But again, people seem to like the...
  3. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: Sure, but the sony 16-35 only costs $5500. So...

    Sure, but the sony 16-35 only costs $5500. So basically only 5%-25% of the cost of a premium caliber cine zoom lens.

    And again, there's nothing about any of the contrast-detect, phase-detect,...
  4. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: True, Sony eND could do it if the transition is...

    True, Sony eND could do it if the transition is invisible. Though it would also be nice to expand DOF between 2 points without necessarily getting everything in the foreground and background in...
  5. Replies
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    How annoying. I wonder if the c300 handgrip would...

    How annoying. I wonder if the c300 handgrip would work. Maybe varizoom will come out with a product for it. The canon remote is nearly $2k!
  6. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: Yes I know they can do it in stills. I just mean...

    Yes I know they can do it in stills. I just mean in video. Additional area coming into focus rather than changing focus from one place to snother
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    Now I'm confused. B&H claims that both the...

    Now I'm confused. B&H claims that both the C300mk3 and the C70 have 2.5mm LANC ports
  8. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: What's KB? One thing I think will be...

    What's KB?

    One thing I think will be interesting is impossible focus shots - having focus in 2 planes simultaneously but soft in-between. Or expanding your depth of field mid-shot which is...
  9. Replies
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    Really? I thought any of Varizoom's LANC...

    Really? I thought any of Varizoom's LANC controllers would work with the c300?
  10. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: Yeah but people alter and constrain their shots...

    Yeah but people alter and constrain their shots specifically to accommodate focus-pulling. So, if the current solution is NOT DOING something, maybe there would be a better solution that would allow...
  11. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: incidentally, Brawley also added that he thought...

    incidentally, Brawley also added that he thought computational photography/light-field/focus-after-the-fact would replace ACs sooner than AF does. and pointed me towards the Focos app. (not that...
  12. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: Brawley says his AC uses the autofocus of the...

    Brawley says his AC uses the autofocus of the cvision in certain scenarios:
  13. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: Well, I didn't say that AF adoption in features...

    Well, I didn't say that AF adoption in features was imminent. Just eventual.

    But the light ranger is a LIDAR system with an autofocus mode that apparently people have already used on big-budget...
  14. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: It's not down the line. You didn't see the...

    It's not down the line. You didn't see the million articles that were written about the Light Ranger on Uncut Gems? (amateurly shallow DOF, that film). The 1st AC on that movie had this to say:

    ...
  15. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: Cumbersome...like this? 143058 I sort of...

    Cumbersome...like this?

    143058

    I sort of imagine you'd be pulling focus manually and then tap a monitor to select a subject to follow and then just start turning your wheel again when you want...
  16. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: Imagine that the AC can change from AF to MF...

    Imagine that the AC can change from AF to MF mid-shot and also switch between face-, eye-, subject-detect and zone focusing mid-shot. It gets even better because the upcoming Canon R3 will be able to...
  17. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: So do I, but I feel like this is a bit of a red...

    So do I, but I feel like this is a bit of a red herring. This is a goal-oriented craft and our viewers don't care how we deliver the goods. The arc of technological innovation trends toward lower...
  18. "This place is full of vultures. Vultures...

    "This place is full of vultures. Vultures everywhere."

    143055
  19. Replies
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    14,100

    A specific sequence...? So, it can do global...

    A specific sequence...? So, it can do global shutter but not global power?
  20. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: Also, my baby is a contrast-detect pixel and I am...

    Also, my baby is a contrast-detect pixel and I am deeply offended by your condescension. One day I hope he grows into a phase-detect or even a hybrid
  21. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: Semantics. The key usefulness of "AF" imo is that...

    Semantics. The key usefulness of "AF" imo is that it readjusts focus to keep a subject sharp. That part is automated, and can be one of the biggest challenges of executing a shot at times.


    ...
  22. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: Yeah, the car keys example is trivial. Although...

    Yeah, the car keys example is trivial. Although what's not trivial is getting it to do 2 different pulls at different speeds in the same shot. although even that may be possible.

    and the main...
  23. Thread: Venmo

    by ahalpert
    Replies
    3
    Views
    131

    personal. yeah I have no idea what their...

    personal. yeah I have no idea what their threshold for caring is
  24. Thread: Venmo

    by ahalpert
    Replies
    3
    Views
    131

    I use venmo, it's quite popular these days. I get...

    I use venmo, it's quite popular these days. I get paid by some clients thru it and I pay rent thru it. People commonly use it to pay each other back for drinks, etc. You can add comments to payments...
  25. Thread: NO Sony Fs7!!

    by ahalpert
    Replies
    240
    Views
    5,919

    FS7: Sure, the process and goal of focusing is the...

    Sure, the process and goal of focusing is the same regardless of resolution/viewing size (which is really just depth of field, since DOF is affected by the viewing format)

    But I think that what...
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