C-Mount Lens

[bkatcher]

I saw this camera on craigslist, and was curious about the lens

http://sfbay.craigslist.org/sby/pho/2532597201.html

I assume this lens would not work with the AF100, because that lens is probably designed for a 1/3 or 2/3 sensor. Am I correct in that assumption?

Thanks for the help,
Brandon

 

[jmarkham]

You may be able to use the c-mount lens after you've zoomed in a bit. All the way out, you'll likely have
sensor coverage / vignetting issues.

With the larger sensor format, you'll be looking down parts of the lens that were never meant to image.

Because of the neutral-density filter wheel, it's not possible to get the back of the lens quite as close
to the sensor as you can on other MFT cameras. So, you may have an issue with infinite focus as well.


Some work great (I've got an old Zeiss C-mount that's wonderful) .. and some just don't work at all.

jeff

 

[mcbob]

Googling "JM16-12 c mount 12-120 1.8 (or 1.6)" doesn't bring up much info... Computar sells a c-mount 1/2" 12-120/1.8, so that may hint to it being for a 1/2" sensor.

This leaves two options:
1. modify the rear collar so it will fit in a standard c-mount adapter and shoot in ETC mode at all times
2. affix a 1.5-2x c-mount tele-extender. You /may/ be able to work in normal mode without vignetting, but would lose 1-2 stops of light.