Jump to content

Erkan Umut

Basic Member
  • Posts

    234
  • Joined

  • Last visited

Posts posted by Erkan Umut

  1. As you know, the beam splitter of Bolex Reflexes have a thicker pan prism. That's why Bolex reflex lenses are differs in design.

    Also, 16ST (16S) utilize two-blade shutter, which, in turn, enables to run it at half the speed. So, to eliminate the flicker causing, the mirrors on the blades have symmetrical black stripes providing extra black outs.

  2. I am fixing some old sales literature found on the archive org.

    I need a high-resolution photo of the ACME printer model 102, taken from the same viewpoint, seen below.

    143702692_ACME102.jpg.ad6564f1b5c3d46fca351718b2094b65.jpg

    As you see, the middle part was lost due to improper photographing.

    I have found the same in an advert online, but it doesn't fit to my page resolution. (At least 300dpi will work.)

    Thank you!

  3. On 9/10/2019 at 10:22 PM, Martin Baumgarten said:

    (Svema B&W and others were discontinued by 1991/1992)

    Dear Martin,

    SVEMA, Shostka and TASMA, Kazan had continued to made light-sensitive and magnetic tape materials right after the dissolution of the Soviet Union. SVEMA also made OEM manufacture for a while.

    There was a huge demand for 16mm color reversal stocks by TV stations in the former republics other than Russia since the video systems were obsolete (mainly LOMO equipment) or not available yet. Not to mention the other types of materials in various formats for studios and archival news gathering purposes. Imported stocks were few and available to the bigger privileged enterprises like MOSFILM, ORT (State-run CHANNEL 1), etc.

    I was a technical manager at a company, which also operates a film lab, and in connection with those manufacturers to import raw stock for budget film productions here in Turkey. However, it was so difficult to deal with them for business as the activity of the foreign trade enterprise responsible for chemical exports in Moscow was stopped (turmoil).

    Then I have been in many republics to find stocks the lab needs. I bought a very good Russian book about processing Soviet films since I can read Russian. Here we were stopping the reversal process of the 90 GOST Tungsten color reversal (Och-90L) in the first step to get negative results only with the native EI decreased.

    SVEMA in the early 90's had made a color negative that can be processed with the ECN-2.

    All the Best,

    Erkan

    • Upvote 1
  4. 6 hours ago, Mark Dunn said:

    Learn French!

    I collect documents for almost 40 years. I don't need a manual for operating a simple camera, hence I can easily understand French.

    I speak German and Russian, its well enough to read beautifully written technology books in the field.

    I am a retired Prof. of Cinematography, technical consultant, and a DoP.

  5. Stable image definition may be notional. To what extend? 

    If you need rock steady images to be screened on a big screen (assuming the print and projection quality within the given standards) or conventional SFX work, then it really matters.

    That's why you gonna see image steadiness data is given generally, and engineers were designed complex and quite expensive mechanisms, as well as near impeccable machining and workmanship were required, to achieve that.

    Otherwise, I am free to say: I had a Nikon R10 camera with an excellent lens mounted and the resulting images were stable.

     

  6. Guys, I had a Beaulieu R16 (later donated to a museum here), which I did a steadiness (registration) test on it in the 90s with fine results as far as I remember.

    It may be unfair to compare the semi-pro cameras with the pro ones mentioned above I think.

    Doiflex 16 made by DOI Seisakusho was aimed at a reasonable-priced camera, there was no need to put a complex intermittent mechanism like in the Arriflex 16S/St , M and BL. It was well enough to utilize a simplified mechanism having two cams opposite each other and inside of frames as the followers. The one gives a sinusoidal pull-down movement while the other lateral for the registration pin. But the rest is similarly designed as 16S/St. At first, it was accepting 100ft da-lite spools and a 400ft. magazine provision was planned by modifying the camera top at the factory. However never became a reality. Also, it has a guillotine reflex mirror not a shutter, its shutter is focal. Very helpful for quick pans handheld to eliminate the stroboscopic effect.

     

     

  7. Ohh yes. I love my Eclair ACL! I just received over the Internet some twelve minutes of footage from DeJonghe I shot on Tuesday. It came out perfect, despite the fact that this was the first time that...

    1) ...I used my PL-mount adapter and some Optar Illuminas

    That sounds amazing! Glad to hear.

     

    I had the opportunity to work with OPTARs in the past, they had very good contrast.

     

    Optar Illuminas are made by JSC "OPTIKA" in St. Petersburg (in the USSR: NPO "EKRAN", Leningrad) exclusively for the U.S.

    You are close, did you visit the factory?

  8. Light n ing.

     

    It means both, the pastry éclair is a straightened version of the naturally occuring. Imagine confectioners imitating a jagged one! An unsteady hand helps, quite the contrary of what camerapeople must afford.

    An engineer's approach of course. :D

×
×
  • Create New...