Mihail Ursu

Hello, For a school project I want to create very long exposures by hand cranking an Arri 2C with exposures of about 5seconds during the night. I will manufacture a new crank with a larger radius in order to achieve an acceptable vertical stability. I will be shooting 35mm Kodak vision 2 5260 push processed by 1 stop, pushed by increasing the time of developing in order to develop all the silver cristals (even those in wich the exposure is not surface but deep). The questions I have and ask you with humility to answer are: - considering that the city lighting here is made of sodium lamps do I use any filter to correct? - will the neon city light be acceptable? And Please, if anyone thinks of any other issues that might appear please let me know. I have done some tests but I will only see them tomorrow in a Colormaster. Thank you very much and hope for answers, Mihail Ursu.

I wanted to give you an update as to how things worked out. It was a very interesting and pleasing experience working with film for the first time and none of my fears regarding strobo. and exposure came true. Because luckily the laboratory in our school did a good job developing the material and I exposed properly the night shots came out exactly as I wanted them to, in fact I found out that I could have pushed the material some more. A very pleasant suprise was how the film handled the very contrast scenes at sunrise, I expeted to see some bleading of white to black in the scenes where I had the sky about 3-4 stops over the exposure value. One regret that I have is that i didn't push the film to the limits so that I would know where they are and how they look. Thank you all again, Mihail Ursu,

Thank you very much for you answers. I will take into account all the information you shared.

First of all, greetings to everybody on this forum and that you for your time and knowledge. Now... I need to make a short 3-5 minute film for my cinematography exam and I will be shooting a mix of Kodak Plus-X and Kodak Double-X (iso 100-250) on an ancient Mitchell special effects camera. I want to shoot at 4-8-12 frames per second while moving the camera slowly on a dolly or a trav to compensate for the faster movement. My questions are: 1- will there be any reciprocity failure at these frame rates? 2- how about stroboscopy? will I have problems with cars, people and statis objects? if I will, how will the focal distance of the lens influence it? (i remember that there is a relation between focal distance and the panning speed, but I not sure how). 3- any other problems that I am not aware of? Thank you very much for reading this and for any replies.