Anamorphic with Ursa 12k

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Chris Shivers

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Anamorphic with Ursa 12k

PostMon May 10, 2021 6:44 am

I'm getting the ursa 12k this week or next week and a couple months from now i'm getting the vazen 50mm t2.1 1.8x anamorphic lens. And I know for 12k, 8k and 4k they have anamorphic modes. What's the work flow with that resolution? Is it possible for me to use 1.8x anamorphic or is it only for 2x anamorphic?
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Note Suwanchote

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Re: Anamorphic with Ursa 12k

PostMon May 10, 2021 6:46 am

Chris Shivers wrote:I'm getting the ursa 12k this week or next week and a couple months from now i'm getting the vazen 50mm t2.1 1.8x anamorphic lens. And I know for 12k, 8k and 4k they have anamorphic modes. What's the work flow with that resolution? Is it possible for me to use 1.8x anamorphic or is it only for 2x anamorphic?


I've used a Vazen 85mm 1.8x on the 12K. You'll be able to monitor in 2x but I didn't really find that to be a problem.

In terms of workflow, Resolve will allow you to select 1.8x desqueeze.
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Chris Shivers

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Re: Anamorphic with Ursa 12k

PostMon May 10, 2021 7:37 pm

Note Suwanchote wrote:
Chris Shivers wrote:I'm getting the ursa 12k this week or next week and a couple months from now i'm getting the vazen 50mm t2.1 1.8x anamorphic lens. And I know for 12k, 8k and 4k they have anamorphic modes. What's the work flow with that resolution? Is it possible for me to use 1.8x anamorphic or is it only for 2x anamorphic?


I've used a Vazen 85mm 1.8x on the 12K. You'll be able to monitor in 2x but I didn't really find that to be a problem.

In terms of workflow, Resolve will allow you to select 1.8x desqueeze.


also with the anamorphic modes does the sensor get cropped in
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timbutt2

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Re: Anamorphic with Ursa 12k

PostMon May 10, 2021 9:39 pm

Anamorphic on the 12K isn’t too different from Anamorphic on the 4.6K. 12K Anamorphic uses 7,680x6,408 of the sensor just like the 4.6K uses 3,072x2,560 of the sensor. This is for 2X anamorphic desqueeze to achieve a 2.4:1 aspect ratio. Here’s an example of the UMPG2 with Atlas Orion Anamorphic lenses:
Image
2X Anamorphic Lenses are hands down the best way to achieve a true anamorphic look. I definitely prefer the Atlas Orion Anamorphic lenses over the Vazen. Far better characteristics of anamorphic widescreen.


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"I'm well trained in the art of turning **** to gold." - Tim Buttner (timbutt2)

Cameras: URSA Mini Pro G2 & Pocket 6K Pro
Past: UM4.6K, P6K, BMCC 2.5K
Computers: iMac 5K (Mid 2020) & MacBook Pro Retina 15.4in (Mid 2018)
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Adam Langdon

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Re: Anamorphic with Ursa 12k

PostWed May 12, 2021 1:34 pm

The 50mm 1.8x Vazen looks really nice, probably the nicest out of their line up, and it's PL mount, but for more focal lengths its probably better to go with a company that has a matching set, i.e. Atlas Orion.
Ursa Mini 12k +Rawlite - Cinema Camera 6k - SLR Magic APO Microprimes PL/EF - Tamron 24-70mm f2.8 G2 - Aputure Lighting
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TreviFOUR

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Re: Anamorphic with Ursa 12k

PostMon May 01, 2023 7:15 pm

What settings are using too use Anamorphic lenses? Regardless of settings I get a diaginal image and i'm not sure how o correct it.
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rick.lang

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Re: Anamorphic with Ursa 12k

PostTue May 02, 2023 12:57 am

Sounds like your lens isn’t mounted properly! A perfectly vertical axis is required so as not to skew the image on the frame. Which lens and mount are you using?
Rick Lang
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TreviFOUR

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Re: Anamorphic with Ursa 12k

PostThu May 18, 2023 2:38 am

Vazen ef mount
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rick.lang

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Re: Anamorphic with Ursa 12k

PostSat May 20, 2023 1:30 am

No company is intentionally selling an anamorphic lens that produces a diagonal image; that would be, for example, 45 degrees out of alignment. If you are sure you have mounted the lens correctly, I would contact the vendor as it might be that a critical element within the lens is out of alignment.or simply return the lens explaining that the anamorphic stretch is on a diagonal.
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