Brad Hurley wrote:To do a comparison I'd suggest the best approach is to use the same lens on a BMPCC 4K in Super 16 crop mode and on the original BMPCC, color-match them, and see how they compare. You could also do it with an Ursa 12K in Super 16 crop mode, or the new BMCC 6K in Super 16 crop. But you need to use the same lens.
If this approach is used, It will unfairly bias the larger sensor camera when using a lens with vintage cinematic character. They would only be equivalent if you used lenses that are equally sharp at the edges.
Les Zellan wrote:
"Part of the Cooke Look is the focus fall-off at the edges. Our lenses are not “flat” meaning that we do not try to make the corners and the center equally sharp.
If you draw a vertical line through the center axis and you spin that around and make a circle, that’s what we call the picture height area. Obviously, that’s a larger circle in Full Frame than it is in Super35. This area on a Cooke lens, the sweet spot, is where we pay a lot of attention. Outside that circle, we let the image fall off to the corners. The center is as sharp as can be, and as we move to the edges of frame, it gets slightly softer. We do that because most of the time you are filming people or things where the area of interest is towards the center, and the edge fall-off adds a pleasing dimensionality to the image and brings the viewer’s attention toward the center.
Now, if you think about a Full Frame lens, keep in mind that the picture height circle is bigger. It is usually 24mm high instead of 18mm. So, if you put a Full Frame lens on a Super35 camera, the image is going to be cleaner because all that pleasing fall-off area is outside of frame."
From Les Zellan, legendary chairman of Cooke Optics
101-FDTimes-4.07-300-Cooke-Tour-2020.pdf
https://www.fdtimes.com/2020/04/07/cooke-tour-2020/Here is a comparison:
r/bmpcc OG BMPCC VS BMPCC 6K Pro | Image Comparison between the oldest and Newest Blackmagic Pocket Cameras (Gen 1 4 & 5)
Of Two Lands
Shot on an OG BMPCC, this trailer, (Don't Stop Running) uses a good selection of MFT lenses for a cinematic look:
viewtopic.php?f=2&t=72506&p=516229&hilit=kenrockwell#p516229The more modern pocket cameras and the BMCC6K FF use a dual ISO sensor, not a dual gain sensor, like the OG BMPCC has. A dual ISO sensor has 1 active signal amplifier, a dual gain one has 2.
A dual gain sensor increases dynamic range, and is a rare feature. Fairchild, subsidiary of ON, used to charge Blackmagic $2,600 for the dual gain sensor on the URSA Mini Pro G2, they also supply sensors for the Arri Alexa. The organic look of the dual gain sensor is also available on the Canon C70 and the OG BMPCC.
…On the BMPCC 4K, the analog gain is the same from 1250 to 6400 ISO, the digital gain advances from 1250 up. This ramping up of digital gain is the most apparent at ISO 1000.
This explains the dual gain sensor:
Regarding the ARRI Alexa:
"...The sensor’s 3.4K horizontal photosite count (28.17 x 18.13mm) delivered unusually large photosites for an optimal balance between image sharpness on the one hand and high dynamic range, high sensitivity, and a low noise floor on the other.
...By employing unusually large photosites (in today’s world of tiny cell phone sensors), ALEXA’s sensor exhibits high dynamic range, high sensitivity, and low crosstalk. The larger a photosite is, the more light it can capture, and the lower the noise.
...The ALEXA used the ALEV III CMOS sensor (3392×2200 effective pixels) and could shoot in resolutions up to 2880×2160 (4:3).
...Variations of the ALEXA were used by cinematographers who won the award for Best Cinematography at the Oscars every year since 2012 except for 2017."
The ARRI ALEXA is 10 years old
https://www.newsshooter.com/2020/05/27/ ... years-old/u/wtfisrobin wrote:
“Just looking for people's opinions, as I casually look at ebay listings for cameras that, on paper, have lower spec in almost every regard lol... thinking for the cost of a kitted out Micro i could probably get a really good lens…
Is there really a reason to own both a Pocket 4K and a Pocket OG or Micro Cinema? Can you really not get the same vibe shooting cropped 1080 BRAW on the pocket 4K? Should I bite the bullet and buy and rig out a whole other kit for the "vibe"? Or do you think it's all hype, and it's silly to buy a camera chasing an enigmatic look?”
It's not just hype. Although the BMPCC 4K is way easier to get a good shot out of, within it's exposure limits the image from a Fairchild dual gain sensor, like in the OG BMPCC, URSA Mini Pro 4.6K, Canon C70 or Arri Alexa can be sexy as hell.
Re: Official "Look what I shot!" Thread
Gary Collins wrote:
"Shot this with the BMPCC OG and the BMPC 4K."
viewtopic.php?f=2&t=4848&p=968908&hilit=+Shot+this+with+the+BMPCC+#p968908texaco87 wrote:
“Personally, I want to say the answer is a definitive yes. Part of that has to do with the DGO sensor, part of it has to do with cDNG files, and part of it has to do with the earlier color science and the nature of the color space.
On the other hand, people like to say that those differences come from a less sophisticated sensor that is desaturated in lower exposure, and that the 4K, and by extension 6k, have more information, and should therefore be able to be molded into whatever you want.
But in my opinion, there is some magic to those older Fairchild sensors. I’ve totally drank the kool-aid, I think Sony sensors, while technically great, can be boring and flat.”
r/bmpcc Is there really any 'magic' in the BMMCC or BMPCC OG that I couldn't get by shooting cropped 1080 BRAW on my Pocket 4K? Real or Hype?
https://www.reddit.com/r/bmpcc/comments ... _or_bmpcc/u/idoperokungfu wrote:
“This camera is 10 years old and shoots 720p. When i compare the two footages the BM has a much better cinematic quality. The iphone seems to sharp and over saturated.”
donttakeawaymymango wrote:
“A lot goes into a nice image.
Shooting in LOG to have more control over colors, larger sensor than an iPhone are two that come to mind.
Like the Alexa's, the Original Blackmagic Pocket Cinema Cameras use a dual gain sensor, with very large photosites. This helps it to record 12 bit raw images with 13 stops of dynamic range. The size of these photosites means that it shoots in 1080P only. It is still prized for it's organic look that is more filmlike than many later higher resolution cameras.”
This is the sensor used in the OG BMPCC:
"The sensor has two ADC channels per column with one optimized for low light levels and the other optimized for high light levels, enabling intra-scene high dynamic range of over 88dB."
The Fairchild Imaging CIS1910A
For a narrative film, this trailer (Don't. Stop. Running) uses a good selection of lenses on the OG BMPCC:
viewtopic.php?f=2&t=72506&p=516229&hilit=kenrockwell#p516229Portrait of Rome shot on the BMPCC
Of Two Lands
r/bmpcc Why does the OG BMPCC shoot better video than the Iphone 14?
https://www.reddit.com/r/bmpcc/comments ... _than_the/