Sony 35mm f1.4 GM - Video Autofocus Test (FX3)

Фильм және анимация

The video autofocus is tested on the sony FX3 (similar to the A7s III or FX6)
How smooth are the focus pulls and how strong is the bokeh jitter in the out of focus background. Tested at f1.4 with Eye AF and with different transitions speeds.
Instagram: deadendboredom?...
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Пікірлер: 25

  • @scottclark1455
    @scottclark14554 ай бұрын

    Perfect test, most reviews spend two seconds on video performance and most of those don't even do proximity tests like this, which is super important. Thanks!

  • @blaspayri
    @blaspayri Жыл бұрын

    very concise and efficient test to show how it works for both the camera and the lens

  • @matthewtrump3452
    @matthewtrump3452 Жыл бұрын

    Was wondering whether you've had any experience with the FX3 + 35mm f/1.4 GM combo for talking head style videos? I seem to remember seeing quite a bit of focus pulsing which was further amplified by the focus breathing resulting in a rather distracting image. Would love to hear some real world experience!

  • @deadendboredom

    @deadendboredom

    Жыл бұрын

    Normalerweise Focus Breathing doesn't bother me much, but with the Sony, it's become an little annoyance. In a typical scenario with stationary subjects, the effect is thankfully not overly noticeable. However, in any situation involving camera movement, it becomes apparent. I've experimented with breathing compensation, but it results in significant cropping, and I've often experienced slight digital jerks, which isn't a satisfactory solution for me either. I found the lens particularly problematic during dynamic interviews. Recently, I've been conducting lengthy interviews with two individuals while using a gimbal. Even with the autofocus set to slow, the camera tends to focus noticeably on the background during panning. Long story Short: when it comes to filming, I usually rely on the Sigma 35mm 1.2 Art. Although it didn't perform as well in tests due to less smooth focus shifts, surprisingly, this flaw is almost imperceptible in reality. If I use the Sony at all, it's primarily for photography purposes.

  • @tomdamage9321

    @tomdamage9321

    9 ай бұрын

    @@deadendboredomhmm sigma art 35 1.2, is it usable for run and gun narrative short movies work? When autofocus is needed?

  • @deadendboredom

    @deadendboredom

    9 ай бұрын

    @@tomdamage9321 I would say Yes, I shot almost a complete short film with the Sigma ART 35 1.2 and was very surprised by the practicality and preferred it to the Sony 1.4 I also used it with more documentary films and had no problems with the autofocus.

  • @tomdamage9321

    @tomdamage9321

    9 ай бұрын

    @@deadendboredom thats very good to hear! Any problems with gimbal such as ronin rs2 with fx3 ? I imagine this lens is a nightvision beast in combination with fx3. Is there a link for that short movie somewhere? 🙏

  • @deadendboredom

    @deadendboredom

    9 ай бұрын

    @@tomdamage9321 Using the Sigma 35 1.2 on the FX3 with the RS2 is actually not very suitable because the lens has a very large diameter and definitely requires support, which doesn't fit without artificially raising the camera. Weight-wise, it's not an issue, though. The short film is currently being showcased at film festivals and is not yet publicly available on the internet. When I remember, I'll send you a link once it's available. Perhaps in the coming days, I can also put together a few clips from the film that demonstrate the lens's performance.

  • @matt-od1hj
    @matt-od1hj Жыл бұрын

    what lenses have you found have the least bokeh jitter?

  • @deadendboredom

    @deadendboredom

    Жыл бұрын

    The Viltrox 50mm 1.8 and the Sony Zeiss 55mm 1.8 had the least amount of focus jitter in my tests so far.

  • @berlyn_
    @berlyn_9 ай бұрын

    Hi, do you feel the focus moving when focusing really close to really far handheld??

  • @deadendboredom

    @deadendboredom

    9 ай бұрын

    Hi! How exactly do you mean that? focus Breathing or Vibrations from the focus motor?

  • @berlyn_

    @berlyn_

    9 ай бұрын

    @@deadendboredom vibration from the focus motor.

  • @deadendboredom

    @deadendboredom

    9 ай бұрын

    @berlyn_ No, you can't feel the vibration from the autofocus motor with this lens - at least I didn’t notice anything.

  • @berlyn_

    @berlyn_

    9 ай бұрын

    @@deadendboredom thank you for the reply. Maybe im just too sensitive. Didn't feel a thing when focusing short distances its when super close to super far that I felt the motor focus at AF. Manual is dead silent though.

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