HansenTsang
New member
Hello,
I have a Bolex 16 to 100mm zoom lens that came from a 16mm Bolex movie camera.
This is not my lens but mine is just like this:
http://www.ebay.com/itm/KERN-VARIO-...era_Lenses&hash=item2eb9d6a7de#ht_2136wt_1316
I also have a Panasonic GH2 and a C mount to Micro 4/3 lens adapter.
When I put the zoom lens on the GH2 I get a lot of vignetting and I hit infinity focus way before the lens focus ring reach the infinity mark.
So I have two question:
1) In order for me to get the infinity mark on the focus ring to more or less line up with the actual infinity focus do I shim the lens farther away from the camera or shave the adapter and get the lens closer to the sensor?
2) In order to get a larger image circle to project on the sensor, do I shim the adapter farther away from the sensor or shave the adapter and get the lens closer to the sensor.
All this is assuming I can do some machining which I do.
Thanks in advance.
I have a Bolex 16 to 100mm zoom lens that came from a 16mm Bolex movie camera.
This is not my lens but mine is just like this:
http://www.ebay.com/itm/KERN-VARIO-...era_Lenses&hash=item2eb9d6a7de#ht_2136wt_1316
I also have a Panasonic GH2 and a C mount to Micro 4/3 lens adapter.
When I put the zoom lens on the GH2 I get a lot of vignetting and I hit infinity focus way before the lens focus ring reach the infinity mark.
So I have two question:
1) In order for me to get the infinity mark on the focus ring to more or less line up with the actual infinity focus do I shim the lens farther away from the camera or shave the adapter and get the lens closer to the sensor?
2) In order to get a larger image circle to project on the sensor, do I shim the adapter farther away from the sensor or shave the adapter and get the lens closer to the sensor.
All this is assuming I can do some machining which I do.
Thanks in advance.