Three extended ISO tests in vlog to help expose your image

Someone had a great question about the Panasonic S5; Is the Extended ISO was worth it? This video explores a series of ISO tests in vlog to help answer that question. Is the lower ISO of 320 less noisy than the lower setting of dual native ISO at 640?

Join me and discover some fun discussion about exposure and ISO and let me know what you think in the comments.

Were there any surprises? Any thoughts of how the test could be done better?

Hope this is helpful in answering some questions about your Panasonic S5 as you look under the hood seeing how the ISO (eye-so) is affected in three different tests.

Each test cycles through all extended ISO settings in 1/3 stops in vlog:
Test one, exposing to 0 on the luminance spot meter to middle gray.
Test two, exposing to 0 on the light meter.
Test three, exposing to +1 on the light meter.

All of the black squares on the color chart are zoomed in 10x (1000%) for better clarity of the ISO results. Here’s hoping that the YouTube compression doesn’t ruin this test. The video was uploaded at 4k.

Chapters:
0:00 - Introduction
2:42 - Test Parameters
3:19 - Test 1: Luminance Spot Meter
5:28 - Test 2: Light Meter to 0
7:39 - Test 3: Lighter Meter to +1
10:00 - Conclusions

ISO TEST SETUP:
→ Panasonic S5
→ Lens: IRIX 45mm F1.4
→ Sigma MC-21 Mount Converter, EF Adapter to L Mount
→ Datacolor Spyder CHECKR 24
→ KEY LIGHT: amaran 200d, 200W
→ FILL LIGHT: NL 660, 40W

LINKS:

TikTok - @charlesrnick
Instagram - @charles__nick

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Gear Used to Make This Video:
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EDITING SETUP ——————————————————
Apple 16” MacBook Pro M1 Max
Davinci Resolve Speed Editor
LG 27UN850-W 27 Inch Ultrafine UHD
Bose Companion 2 Series II - old school, but I love them

FILMING SETUP ——————————————————
CAMERAS - Canon M50, Panasonic S5, Blackmagic 6k Pro
CAMERA MONITOR: Andycine C7 4K

MIC: Rode Video Mic Pro+
LENS on Canon M50: Canon EFS 18-55mm, F4-5.6
LENS on Panasonic S5: S-S50, 50mm F1.8
LENS on Blackmagic 6K pro: Sigma Art 18-35mm F1.8

KEY LIGHT: amaran 200d, 200W
FILL LIGHT: NL 660, 40W
RING LIGHT: Weeylite WE-10 - love this RGB light for the $
SHOULDER LIGHT: Came TV-Pro 300W

Questions? - If you have any questions please comment below and I will do my best to answer it and or make a video on it :)

This video is a Jett Radio Records production and represents my personal opinion and is not sponsored or paid for by any brand or person.

[GlennGasner]

Brilliant! I was surprised at how much noise variation there was. Wasn't what I was expecting.

[davidmultimedia]

Thanks for this test Charles!
What I would really like to see is a comparison between Internal 10 bit 422 recording VS ProRes HQ VS BRAW Q0 (including skintones and colorcheckers, under natural light). Strangely, there’s not much comparison out there, especially comparing ProRes HQ. I found a few BRAW examples with the S5, but they aren’t very good, and they’re not even comparing it to the internal codec, so it’s not really helpful. You would the first one to truly demonstrate the difference in between all 3 options. They’re all about BRAW, but ProRes HQ is still a very interesting option since it allows some Noise Reduction and e-stabilization/Boost IS to be used (plus you get a higher bitrate, All-Intra frames and smoother playback). Also, i’m curious to know if you HAVE to set the HDMI output to 10 bit 422 on the S5, or if you can keep it at 12 bit RAW and still record in ProRes HQ on the Video Assist (so it completely bypasses any sort of in-camera processing). If you could made these tests and share the original files with us, it would be GREAT Charles! 🤞🏻🙏🏻🤞🏻 Thank you!

[Herfinnur]

So far I think the noise on the Lumix S cameras looks really nice, so I sort of wanna go for more noise rather than less. What I'd like to see is a test showing how much - if at all - the low range of the extended ISO crushes the shadow detail.