topobros

Hey, I love this project!
I have the exact same lens and hadn´t heard about the front modification, seems really interesting!  
This is a bit of my experience with this lens and anamorphic in general. I have a pretty special grandpa that managed to build me an adapter made of methacrylate that fits the back of the Bell&Howell and converts it to a normal m49 filter thread. Pretty absurd, but it works. On the front I attached a 77 diameter diopter directly to the mattebox, and voilà, ready to shoot. 
Did a couple of test shoots with my GH2 and then I shot a short documentary with this on the A7s with a Jupiter 9, and it didn´t vignette at all, even though it´s full frame, so nice. Although it´s a nightmare to shoot with, I dropped the filters a couple of times, I had to constantly do the double focus, a pain in the ass, but managed to finish it and looks good. I really love the look of this lens, and I agree that it flares more nicely when paired with a vintage lens like the Helios or the Jupiter.
Also, as a bit of an accident, I discovered that the methacrylate leaked light inside the lens and created a rather unusual white vignette that´s very unique and I actually ended up liking it and not fixing it in post. 
It´s always nice to try stupid ideas, you may end up using them. xD
You can see some shots below. The setup was: A7s + Jupiter 9 85 f2 + Bell&Howell Anamorphic + Diopter 
Oh! And be careful with mounting the lens, I destroyed my m42 to NEX adapter. Too much weight, should have bought a clamp. 
I´ll follow the thread and see where this goes, maybe mod my lens too.

Hey, I love this project!
I have the exact same lens and hadn´t heard about the front modification, seems really interesting!  
This is a bit of my experience with this lens and anamorphic in general. I have a pretty special grandpa that managed to build me an adapter made of methacrylate that fits the back of the Bell&Howell and converts it to a normal m49 filter thread. Pretty absurd, but it works. On the front I attached a 77 diameter diopter directly to the mattebox, and voilà, ready to shoot. 
Did a couple of test shoots with my GH2 and then I shot a short documentary with this on the A7s with a Jupiter 9, and it didn´t vignette at all, even though it´s full frame, so nice. Although it´s a nightmare to shoot with, I dropped the filters a couple of times, I had to constantly do the double focus, a pain in the ass, but managed to finish it and looks good. I really love the look of this lens, and I agree that it flares more nicely when paired with a vintage lens like the Helios or the Jupiter.
Also, as a bit of an accident, I discovered that the methacrylate leaked light inside the lens and created a rather unusual white vignette that´s very unique and I actually ended up liking it and not fixing it in post. 
It´s always nice to try stupid ideas, you may end up using them. xD
You can see some shots below. The setup was: A7s + Jupiter 9 85 f2 + Bell&Howell Anamorphic + Diopter 
Oh! And be careful with mounting the lens, I destroyed my m42 to NEX adapter. Too much weight, should have bought a clamp. 
I´ll follow the thread and see where this goes, maybe mod my lens too.

Hey, I love this project!
I have the exact same lens and hadn´t heard about the front modification, seems really interesting!  
This is a bit of my experience with this lens and anamorphic in general. I have a pretty special grandpa that managed to build me an adapter made of methacrylate that fits the back of the Bell&Howell and converts it to a normal m49 filter thread. Pretty absurd, but it works. On the front I attached a 77 diameter diopter directly to the mattebox, and voilà, ready to shoot. 
Did a couple of test shoots with my GH2 and then I shot a short documentary with this on the A7s with a Jupiter 9, and it didn´t vignette at all, even though it´s full frame, so nice. Although it´s a nightmare to shoot with, I dropped the filters a couple of times, I had to constantly do the double focus, a pain in the ass, but managed to finish it and looks good. I really love the look of this lens, and I agree that it flares more nicely when paired with a vintage lens like the Helios or the Jupiter.
Also, as a bit of an accident, I discovered that the methacrylate leaked light inside the lens and created a rather unusual white vignette that´s very unique and I actually ended up liking it and not fixing it in post. 
It´s always nice to try stupid ideas, you may end up using them. xD
You can see some shots below. The setup was: A7s + Jupiter 9 85 f2 + Bell&Howell Anamorphic + Diopter 
Oh! And be careful with mounting the lens, I destroyed my m42 to NEX adapter. Too much weight, should have bought a clamp. 
I´ll follow the thread and see where this goes, maybe mod my lens too.

Hey, I love this project!
I have the exact same lens and hadn´t heard about the front modification, seems really interesting!  
This is a bit of my experience with this lens and anamorphic in general. I have a pretty special grandpa that managed to build me an adapter made of methacrylate that fits the back of the Bell&Howell and converts it to a normal m49 filter thread. Pretty absurd, but it works. On the front I attached a 77 diameter diopter directly to the mattebox, and voilà, ready to shoot. 
Did a couple of test shoots with my GH2 and then I shot a short documentary with this on the A7s with a Jupiter 9, and it didn´t vignette at all, even though it´s full frame, so nice. Although it´s a nightmare to shoot with, I dropped the filters a couple of times, I had to constantly do the double focus, a pain in the ass, but managed to finish it and looks good. I really love the look of this lens, and I agree that it flares more nicely when paired with a vintage lens like the Helios or the Jupiter.
Also, as a bit of an accident, I discovered that the methacrylate leaked light inside the lens and created a rather unusual white vignette that´s very unique and I actually ended up liking it and not fixing it in post. 
It´s always nice to try stupid ideas, you may end up using them. xD
You can see some shots below. The setup was: A7s + Jupiter 9 85 f2 + Bell&Howell Anamorphic + Diopter 
Oh! And be careful with mounting the lens, I destroyed my m42 to NEX adapter. Too much weight, should have bought a clamp. 
I´ll follow the thread and see where this goes, maybe mod my lens too.