Oliver Dom Bro

​Sure there is a difference. Kowa 16D 43mm rear barrel diameter and 92,5mm length, Sankor 16D (also known as Jan 16D) has 52mm rear barrel diameter and 129mm length. The Kowa 16H is also 52mm rear barrel diameter (same as Sankor 16D) and with 84mm length even shorter than Kowa 16D.

​Ah hey, thank you so much for testing! The Moeller does have a 39mm diameter, 16D goes with 43mm (pretty close). The 16H has 52mm. Can you maybe send me a still frame of the footage from the Canon FD 35mm? I just attached my old M42 Auto-Beroflex (28mm F2.8). See attached Picture. It clearly does vignette. Although I was expecting to see a darker vignette. Instead this vignette makes the picture brighter (guess reflecting the light?). Just the outmost corners show dark vignetting. I also have a Helios 44m-2 (58mm), but for my personal taste its not wide enough. Though I am a beginner in the anamorphic shooting and my be wrong about that. I do wonder if 7mm more focal length will get rid of that vignette. I would really love to see a picture of it in action before buying one. Can you do that for me? Maybe even with a bright light source so we can see if there is light reflecting as vignette?

Are you talking about the rear barrel diameter? I didnt know that this affects vignetting too. Does it? So what I get from your answer is that I'd have better chances with a 16H. But I dont have one, so my question would still be the same: Would I get vignetting on a 16D? Right now I am using a Helios 44m. No Vignetting. But I wanted to get a bit wider (and faster). Thus my question regarding the speedbooster combined with a 35mm Canon FD.

Hey guys! I bought the anamorphic guide a while ago. It was a great help so far, but I encountered one question I couldnt answer so far. The guide sais that for a Kowa anamorphic lens 35mm is the widest you should go on MFT before vignetting. Alright, got that much! But: Does that include the crop factor of MFT? I wanted to buy a Canon FD 35mm F2.0 lens and use it together with a Metabones Speedbooster (FD to MFT). That would give me a nice ~50mm F1.4 lens to shoot with. Now I was thinking: What will happen if I attach my Kowa on this setup? Would I see a vignette? So, I tried to do the math... the Metabones turns the 35mm into a 25mm. On my GH4 (in 4K video) that equals 57mm (because of 2,3x crop factor). Should be fine to use it with the Kowa 16-D, right? But what if the Kowa turns the 35mm into a 17,5mm lens before the speedbooster applies? I dont really know which is the case so I hoped some of you would know the answer! All the best!