Blackmagic Forum

I don't wish to create another out-of-control discussion regarding crop size and the BMCC, particularly in respect to those that require "tests" in order believe that somehow physics will change to meet their wishes. However there is an easy way to do your own test on various sensor sizes compared for a specific lens focal length. Sometimes it is easy to become confused when speaking of crop size, when the discussion should be based on field of view. Abel Cine has a nice FOV calculator that allows you to A/B compare the field of views between different crop sized cameras, see this link to do your own test: http://www.abelcine.com/fov/

Thanks!

Also PCam on my iphone has recently updated and has the blackmagic camera in it. That has FOV as well as a tonne of other useful things. More importantly DOF and Circle of Confusion calculators as well. It's been possibly my most handy on set app ever since I had it on a palm and they weren't called apps!

is there a calculator with BMCC EF on camera list for Android Smartphones? or will the MFT Camera mode be sufficient? It's slightly another sensor size right?

jpmulligan wrote:I don't wish to create another out-of-control discussion regarding crop size and the BMCC, particularly in respect to those that require "tests" in order believe that somehow physics will change to meet their wishes. However there is an easy way to do your own test on various sensor sizes compared for a specific lens focal length. Sometimes it is easy to become confused when speaking of crop size, when the discussion should be based on field of view. Abel Cine has a nice FOV calculator that allows you to A/B compare the field of views between different crop sized cameras, see this link to do your own test: http://www.abelcine.com/fov/

Abel Ciné does a nice job visually but the selection of sensors is very limited. I use Angle of View on the iPhone/iPad. You can compare five sensors at the same time. So I can quickly see how full-frame compares to true Super35, BMPC4K, BMCC, and BMPCC. You can edit the focal length of lenses and the distance of the subject from the camera, and add your own dimensions for sensors that are not supplied or are not using a 16:9 aspect ratio. So very configurable.

Rick Lang
Sent from my iPad using Tapatalk HD

Toby Angwin wrote:Also PCam on my iphone has recently updated and has the blackmagic camera in it. That has FOV as well as a tonne of other useful things. More importantly DOF and Circle of Confusion calculators as well. It's been possibly my most handy on set app ever since I had it on a palm and they weren't called apps!

I use the PCam's ability to create a custom profiles to show me my FOV equivalent to super 35mm in the Black Magic Pocket cinema camera coupled with the metabones speed booster. I started with the super 16mm sensor dimensions and multiplied each sensor dimension (horizontal and vertical) by .29 and then added that to the sensor size of the original to create a custom sensor size I labeled BMPC/ speed booster.
Then I will use the field of view equivalent calculator to compare equivalent field of view on various lenses on my BMPC (when it ships) to the super 35mm sensor of my Sony F3 or BM4k when I use either of them in conjunction with it.
For those interested, it works out to a 1.47 conversion, meaning a 10mm on a BMPC is the equivalent of a 14.7mm on a super 35mm sensor camera, a 14mm = a 20.5mm, a 21mm = 30.8mm etc.
It becomes a handy quick reference if you are trying to match fov's in your thinking. I am for instance, most comfortable thinking in super 35mm size references.