chuck colburn

Hello Dennis, You seem to have a good handle on reg. testing. If your testing an Arri 16 you don't have to worry about the second pass being in the same perferation as the first pass as it is only one perf. per frame. Don't forget to off set the target (or camera) slightly in the vertical and horizontal planes on the second pass so you can detect any reg. problems. Vertical jitter would indicate a registration pin error (check for perf. damage) and a horizontal error (sometimes called weave) would be a side rail problem. An image going slightly in and out of focus (more so in the central image area) would indicate a breathing problem due to incorrect pressure plate adjustment. Be sure your loops going in and out of the gate are the right size as this can effect the cameras registration. There is no need to transfer the film to any other medium just pop it into the projector and view. If the whole image that is both sets of lines are moving up and down relative to each other then it's just a projector error. Chuck

Shawn, Is your Bolex a Rex? Sheila in equipment for sale on this site has an Angenieux 9.5-57 for sale cheap. This is a very good short focal length range zoom. And since you are using a "C" mount camera, an adapter should not be hard to find. Just be sure to have it collimated as it is not only very wide but very fast. Best to have it collimated with running film as this will show you if you have a breathing problem, (not asthma) in the gate. Chuck

Hello Daniele, Your best bet would be to take your three Angenieux primes and camera to a shop with an auto collimator and have them checked. These lenses are super easy to adjust, they have three set screws you loosen and reset the lens to infinity with what ever "C" mount camera your using. Any cine optical tech should be able to adjust each one in under five minutes each. I would have them adjusted with running film as it will show you if you have any breathing problem in the gate and will give you the best collimation possible. Also this will confirm that the ground glass is "seeing" the same as the film plane. Chuck

Hello Ayhan, Who was the "CP technician"? Cinema Products has been out of business for about ten years.

Yeah like how GM designs their engines! lol

Hey Dan, Yep. Although they did hang 100 and 150mm Miltars on them. Any longer lens should be supported. I've seen quite a few relexing jobs done to the camera over the years. Chuck

Hi Robert, If I remember right the Eyemo flange focal depth is 1.5" and Nikon is 1.830" so it would be easy enough to "Hard Front" the camera but a Nikon to Eyemo adapter might have some limitations on which Nikon lenses one could use. As the Nikon mount would have to be attached to a tube that would then slide into the camera mount. This might cause interference with some wider angle lens that protrude past the Nikon flange. Chuck

A Beaulieu 4008 ZM is a nice camera with a very god lens on it.

Stop watch?

Hi Patrick, Perhaps one of these companies could provide what you nee http://www.insyncpubs.com/companies/repair.asp Chuck

Nathan, Ahhh. Never knew that! Thanx. Chuck

Hi Robert, A reverse running Arri S is a new one on me. Tim would know if there is such a beast! Chuck

You forgot to put the price in your ad.

Hello Graham, What magnification ratio are you trying to achieve? Chuck

Yeah they are very thin. I seem to recall less than .020". And the ones that were flat and parallel had to then go out for mag flouride coating. Even when they kept the temps down in the vacuum chamber during the coating process a certain amount of the pieces would warp resulting in more rejections. Also with these "cold coatings" you got a not very durable surface. So no cleaning the "pelllical" with your shirt tail! Chuck

Hi Stephen, I think we were joking around about Doug Fries's reflex conversions! And if I remember right, I spelt it pellical. I was grinding some beam splitters on a contract job for Century Optics wayyy backkkk when and we spelt it that way then. Anyhow they were a pain in the ass. If we got ten useable pieces out of a plate of thirty or forty we were doing good! Plano optics are some of the hardest to generate. Chuck

Good morning Stephen, I use to know how to spell! LOL Chuck

In a cine camera the film is not moving during exposer.

Hi Peter-Christopher, Led lighting is not all that complicated of a subject, but you need to control some parameters or you will destroy your lamps. Here's a lead to a site with basic info. I would advise you to poke around the www to learn more. http://ledsupply.com/ledtein.php Chuck

Hi Dave, Great site! I need to spend more time in Wikiland, so much good info. Here's another one I like. The part with the images of Grommit shot with two different focale lengths but at the same magnification is interesting. As always when using Wikipedia be sure to verify facts and formulas as errors have been known to creep in. http://www.vanwalree.com/optics.html Chuck

You want to shoot in 65mm? I can tell you where to rent the cameras. Bring money, lots and lots of it!

Arriflex makes one. Cinema Products used to. It was called the Mini Worral.

Not in the camera body.

Yeah it does look like a coaxial mag. Never seen one like it though. Mayby a steadicam op would like it! lol