Cinemek "Stop down" test

JHouser

Well-known member
Hopefully this answers any questions about stopping down with the G35

I apologize for not hopping on here earlier. I have 15 adapters to ship out this week so my hands have been pretty occupied. :) I'm not sure if most have your have seen this but here is some test footage of me messing with the adapter. Nothing to write home to mom about, but there is a segment where I go from F5.6-1.4 which should give you a better idea of what the structure looks like when stopped down. NOTE: The grain size does not really increase past 5.6, the image just darkens. The "grain" the G35 produces is so small that I consider it actually a non-issue (this is after 2 years of developing for HD cameras). Remember, because it is static, it does not BUZZ around like other moving grain. Quick note, there is a section where I take the adapter off while shooting to show setup and removal time. You will see that the screen is square. All new units have a 42mm circle instead.

I also want to remind everyone that there is no CMOS roll issues or any shutter issue for that matter as the G35 is static (there are no moving parts).

The camera is an XHA1 with a really really old Nikon 1.4.

(Please right click and save. The file you want is called "jons_feet_HD.mov")
http://staff.washington.edu/gdmj100/hd_footage/clips/
 
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So Jonathan, after reading the dos and donts for the Movietube here, would you say that the G35 is about the same? I mean, in regards to limiting your pans and shooting the sky etc etc. Were would you rank the G35 against the Movietube? I know you must be diplomatic when responding to questions about comparisions with other adapters, but i think that since the Movietube is in such a different price range, then it shouldn't hurt.

Thanks!
 
So Jonathan, after reading the dos and donts for the Movietube here, would you say that the G35 is about the same? I mean, in regards to limiting your pans and shooting the sky etc etc. Were would you rank the G35 against the Movietube? I know you must be diplomatic when responding to questions about comparisions with other adapters, but i think that since the Movietube is in such a different price range, then it shouldn't hurt.

Thanks!

I think that MovieTube instruction list is old. I'm sure their screen is better than that now. That is a VERY safe list of instructions. Also, remember when shooting with 35mm Cine lenses you have a much smaller imaging area, thus decreasing the total resolution and introducing more grain issues. So, my answer is... Yes, I think that after 3 years of development our screen/adapter is better. Ill say it. :)

Shoot, make movies. I will do my best to make tools that allow your whole process to work well. Those of you here who know me know I am not here to turn a buck. I like making cool stuff. As I have said before, the G35 is not a no-light adapter. It reduces light 1.4 stops. That is the sacrifice you need to take for a static adapter which looks like 35mm film. There are a few GREAT low light options out there for adapters. All of which are right around $1000. Optics is like a see saw, you push one side down, the other comes up. It takes a lot of work to balance it. If you shoot a lot of low light interior documentaries the G35 is not your adapter. We have designed it so that it can come on and off very quickly so if you are in a situation where you want more Dof. You don't need to get in a wrestling match with your adapter. Just pop it off. Hope this helps.
 
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I'm impressed... So you're saying that there's no grain difference between 5.6 and say... 8? If that's so, then it's very cool. The grain didn't bother me at all.


Thanks for the test!
 
Yes, I was referring shots of the product on a dvx, I wanna see what people are rigging with these adapters. Thanks!
 
Yes, I was referring shots of the product on a dvx, I wanna see what people are rigging with these adapters. Thanks!
This is the only decent picture I have. It's from an older version of the adapter. This version has less "curves". It gives you a general idea though.
DVXsmall.jpg
 
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