Luke Fowler

does anyone know if these lenses work on ARRI ST? with bayonet fitting? It says ONLY FOR ARRI SR on the back of the lens... thanks!

thank you kindly... I;ll let you know how it works on a new camera test..

OK! just spoke to Arri Service in London. Very nice chap. Told me that It could be build up of dirt at the sides of the film gate or the pressure of the springs inside the pressure plate gone weak. For future ref. he showed me how with two pieces of film inserted top and bottom - you can slide the pressure plate off and then softly softly pull the springs up so that they put more pressure on the plate. He said -see if that helps and if it needs it more - make sure your not pulling the spring in the same place as befiore- it should be like an S - if you pull it too much at the same place the spring can snap and your done for! He also mentioned the tip of ramping up the variable speed motor rather than putting in a high voltage to begin with. I seem to remember my old mentor Peter Hutton doing that but sadly he's not around to ask anymore. Does this sound familiar to anyone with an Arri S/ST?

here's a test with 100ft load and 8v battery https://drive.google.com/file/d/1tKvEI75uZakp02gWA8zFiEuUwGc3Z58p/view?usp=sharing

thanks for the input so far... still not sure if its in the film loop/pressure plate.. I tested this AM with very expired film - both magazine and 100ft load ... with 12v/8v batteries... can anyone see anything out of the ordinary? Also - I noticed that the pressure plate has a bit of play when you push at it... it does not click in or have a spring like the bolex... BTW - its def. NOT the scan -- as it only appears sporadically - I just uploaded the footage where it is the worst case example. Sometimes its not there at all.. which made me wonder if it was to do with the voltage/loop tension.. https://drive.google.com/file/d/1zKeOyiMQpv6RTp5hsuUJtJoz4e08Rymf/view?usp=sharing https://drive.google.com/file/d/1DvTM_B4eHITE_SKf56OvpcbOCzvuU9FC/view?usp=sharing https://drive.google.com/file/d/1arPj4xDW6LMzIkNMLUQCLhTVZIJE497p/view?usp=sharing

PS- the scratches are down to hand rolling the film (badly)

Here is an example of the gate shudder I’ve been experiencing inconsistently... It’s really annoying when it happens! https://youtu.be/_9vYgmtuV9g

thank you kindly! yes start of every shot.. i'll post some footage... I had no idea it could be the loop ! I'll check with dummy film... thanks you

Hi there my first post on here. Hoping someone can help me. I purchased two ARRI S cameras and accompanying variable speed motors. The previous owner used the camera with an 8v battery but the charger was broken so I (perhaps mistakenly discarded them). I’ve been shooting on this camera for a few projects now using 12v RC battery packs as recommended to me. I’ve mostly been shooting 400ft magazines with torque motors that say they have been modded for 12v. I burnt out a few arri fixed speed motors using 12v (I was again mistakenly told they were 12v motors) but these variable speed ones have been going ok for a few years now. On Recent shoots though I’ve noticed fluctuations in speed and visual distortions when I get the footage back. I can only describe this fluctuation as like someone rapidly pulling focus at the start of the shot (only sometimes my carefully set focus is pulled out by the force of the fluctuation). I can only assume that this is caused by a surge in voltage that is too much much for the camera and is momentarily pushing the film out of the gate. I thought that tightening the torque motor between shots would help reduce this but it’s not solving the issue alone. Does anyone know how I can address and solve this issue? Is it my batteries / motor or is the arri in need of a service? I was looking to purchase a 12v Tobin motor and a more reliable 12v battery (any suggestions?) - but I want to ascertain that this is indeed the solution before throwing money at it irrationally. thanks kindly for any help or advice, all the best Luke Glasgow, Scotland

hi there looking to buy a Tobin motor for the ARRI S/ST camera. Variable or fixed speed - doesn't matter as long as its in good working condition and 12v. email: luke AT luke-fowler DOT com thanks

looking for one too...