Earlier i tested few vintage OKS 16mm lenses here http://bmcuser.com/showthread.php?17...ested-on-BMMCC and now one more lens test here. This time it is Optar Illumina S16 16mm lens. Its a Zeiss copy made somewhere in early 2000 in Zenit factory in russia in collaboration with US developers. The manufacture of those lenses stopped some years ago and all you can get is a last samples from factory storage.
The lens is rather heavy. Smooth focusing. First time it feels stiff but later you start to understand that it is not stiff but just don't suited for very fast focus pulling. It has few very thin adjustment shims placed between rear mount and lens body. The focus ring was rather prickly so i decide to cover it with rubber ring pad. The lens have no front filter thread, but i mount there with self-adhesive tape empty 77 mm filter ring from disassembled cheap filter. Fits perfect. Overall build quality is very nice but on my sample rear part was screwed very lightly (maybe it was done for storage purposes) so i need to tight it by myself more secure. Also for unknown reason one of the screws was just glued to its hole because thread was broken. Hmm, quality control with vodka and balalaika...
Images shot in RAW on BMMCC with Mosaic OLPF installed.
To fix possible Cross Hatching effect image XY transform was set to 0.5.
The lens itself shot on Yashica 28mm lens.
Processed in DaVinci Resolve with custom LUT generated with LUTCalc (Gamma: Cineon to Amira709, Color Gamut: REC2020 to Alexa-X-2. https://cameramanben.github.io/LUTCa...alc/index.html

T1.3

T2

T2.8

T4

T5.6

T8

T11

T16

and at closer distance:
T1.3

T2

T2.8

T4

T5.6

T8

T11

T16

more tests coming soon...
The lens is rather heavy. Smooth focusing. First time it feels stiff but later you start to understand that it is not stiff but just don't suited for very fast focus pulling. It has few very thin adjustment shims placed between rear mount and lens body. The focus ring was rather prickly so i decide to cover it with rubber ring pad. The lens have no front filter thread, but i mount there with self-adhesive tape empty 77 mm filter ring from disassembled cheap filter. Fits perfect. Overall build quality is very nice but on my sample rear part was screwed very lightly (maybe it was done for storage purposes) so i need to tight it by myself more secure. Also for unknown reason one of the screws was just glued to its hole because thread was broken. Hmm, quality control with vodka and balalaika...
Images shot in RAW on BMMCC with Mosaic OLPF installed.
To fix possible Cross Hatching effect image XY transform was set to 0.5.
The lens itself shot on Yashica 28mm lens.
Processed in DaVinci Resolve with custom LUT generated with LUTCalc (Gamma: Cineon to Amira709, Color Gamut: REC2020 to Alexa-X-2. https://cameramanben.github.io/LUTCa...alc/index.html

T1.3

T2

T2.8

T4

T5.6

T8

T11

T16

and at closer distance:
T1.3

T2

T2.8

T4

T5.6

T8

T11

T16

more tests coming soon...
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