zoltax

I shot on 16mm film for about 15 years - I also had 2 Bolex h16 cameras I used alot -  carted them all over the world during this time.

You really need to consider the BOLEX PRISM before you rush out and buy lenses

 

please read this carefully

http://www.city-net.com/~fodder/bolex/truth.html

 

The Bolex H16 RX cameras and the more recent Bolex models utilize a beam-splitting prism for reflex viewing and still allow lens interchangeability. This leads to optical complications. The prism being between the taking lens and the film must be regarded as an optical element of that lens. Even though it is a very simple element with no curvatures, it has optical significance.

 

 

Lenses for the Bolex are designed to work with the prism it alters the light path to the film

Black Magic Pocket camera has NO PRISM so your lenses will not be working as they where designed to properly

Please make sure you understand the principles first before you buy as some lenses are affected more that others.

 

 

and then read this to undertand the prism more

http://www.bolexcollector.com/cameras/h16reflex.html

 

 

this is the intersting bit from the above link......

 

The Bolex H-16 Reflex was also designed with a 20% more powerful motor than earlier models. On a full wind, it was possible to run the camera for 40 seconds at 16 frames per second. ^[1]

The camera could accept three C-mount lenses (1 inch thread diameter). However, the glass of the reflex prism between the lens and film plane affected the optical correction of focal length lenses equal to or less than 50mm. To solve this problem, Kern introduced a line of "RX" mount lenses which were distinguishable by red letters engraved on the front of the barrel. (More on RX and standard C mount lenses.)

It was still possible to use standard C-mount lenses of 50mm or less, but for best results it was recommended they be stopped down to at least f/5.6. ^[2] However, it was later suggested that non-RX lenses of 50mm focal lengths and less would likely produce satisfactory results only when stopped down to f/8 or smaller. ^[3]

Uh-oh!

Hello everybody.

man... So does that mean my RX C mount Kern Lenses will not work well with the BMCC?
I have a 16mm, 25mm and 50mm RX lenses.

:(

Hello all.

I just pre-ordered my BMC Pocket.

I just wonder, and here goes my question, how would be it to use with 16mm STANDARD lenses instead of S16mm? I know the FOV would be limited, but anyway, here's what I have

10mm, 16mm, 25mm Switac C Mont Lens
10-100 KernSwittar ZOom Lens Bayo Mount.

16mm, 25mm Schneider Arri ST Mount Lens.
5.7 Kinoptik Arri ST Mount Lens.

Can anyone help me to identify those would have no vignetting? OR in which mm in the pocket camera would start to happen?

Thanks everybody!

Flavio