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Robert Houllahan

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Everything posted by Robert Houllahan

  1. I will try to take a look at the QWD kit specs. I think because you are getting a kind of line that you might not have enough agitation happening. In ECN2 in linear processing the developer is very heavily turbulated (agitated) for consistency by big pumps and spray bars in the developer tank. We do the same in the ECN2 Fix and looking at the scans you might have some silver retention possibly from not enough agitation. ECN2 pre-bath can affect color to some small degree but it is really primarily for RemJet backing removal and then it is heavily washed in the buffer stage and then there is an air knife to minimize chemical carry-over to the developer. I do not think prebath has anything to do with dye stabilization in the ECN2 process. Overall I would try allot more agitation.
  2. What kind of chemistry are you using? How well controlled is your developer temp? Offhand it does look overdeveloped and could have silver retention. You might want to take a look at the ECN2 manual from Kodak and get some hypo test liquid from B&H to see how saturated your fixer is. https://www.kodak.com/en/motion/page/processing-manuals https://www.bhphotovideo.com/c/search?Ntt=hypo+check&N=0
  3. Well that basically is the end of that formula, I thought it was 2-gen compatible as one of the primary selling points. No digital information is neglect tolerant.
  4. LTO gets used allot in banking and other financial record keeping and I would think medical records too, archiving film scans is just a side hustle for LTO. I think the multi gen compatibility is one factor in the expense. Production does not really use LTO I have had very few requests for LTO from new production, it is always on drives and how quick can you get it to me, can you upload 5-10000 ft of 4K scans? I get some people ask can you send them back on a CD? Not professionals tho. I have an LTO5 deck and should probably get something newer.
  5. I had a film come through the lab recently for scanning that was a B&W 35mm Czech picture, I don't have the cans and film here anymore but I am pretty sure it was in those cans with those markings. So I think the idea that this is B&W print stock is probably accurate.
  6. Here is what is in a Xena RGB Lamp, you can see pads for the IR LEDs for use with a Monochrome Xena with the IR option.
  7. I am the kid who got a new piece of gear and took the covers off to see what is inside..... This is the SSP lamp innards as far as can be seen:
  8. Here is what the Sphere looks like on the Arriscan it is inside the square box under the gate and it is on a mechanism which allows it to be flipped down. Yes the light source is inside the sphere and the LEDs are directed in a way that all the illumination is from the sphere which is coated in a special Barium Sulfate paint.
  9. https://en.wikipedia.org/wiki/Integrating_sphere https://patents.google.com/patent/US8009190 https://www.shopstellarnet.com/ic2-2-integrating-sphere/?variant=5&gclid=Cj0KCQjw166aBhDEARIsAMEyZh6zAkbm7RsLSDWeG_FDjGYOJ-sUHIUVH5u0SMHny5u0blHJEC0BM9waAnHNEALw_wcB
  10. These machines are tools for work and not classic cars I would not characterize them as "collectable" really. Big post houses bought new scanners as new tech allowed for better and faster scans. I think Co3 was running something like fifty scanners at one time. I know they had more than a dozen "classic" Spirit SDC2000 machines in a room with suites upstairs in NYC when they were uptown. They also had Spirit 4K and Arriscan and maybe Northlight machines in other rooms for DI work. Postworks (used to be Technicolor-PW) in NYC has maybe ten spirits in the basement and two running along with a Scannity and Arriscan, if you watch "Succession" on HBO that is where it was scanned. So IDK who has the biggest pile of machines it is not me.
  11. Yep those Holographic diffusers are likely the same ones in the Scan Station and Xena and maybe the HDS+ Kinetta etc. They do a good job and make for a much more compact lamp than a diffusion sphere.
  12. We have done rewash on films that were night and day difference, something a ultrasonic clean could not even begin to get out. The rewash can kill and remove mold and to some degree soften and “heal” the emulsion. One film in particular for a big Scorsese doc was so severely damaged and had black mold splotches all over it making it really unusable even after ultrasonic. After rewash it had just the finest looking “cracks” where the emulsion had split I scanned it on the Spirit 4K everyone rejoiced. I am building a multi process rewash / backing removal processor out of spare parts. the Integration sphere is just literally what it sounds like, on the Arriscan it is a square box about 6-7” on the outside and if you look into the quartz window you see the interior of a white sphere. The LED array is not visible it bounces light into the sphere. The Scan Station and other scanners use a holographic diffuser which also works well. Look on Edmund optics for Holographic Diffuser and they have them in different degrees, its fairly expensive material.
  13. Just about any film processor can develop Ultra-16mm without damaging the area between the perfs, I don't think any lab worldwide is running a Sprocket drive film processor at this point. I also don't know of any lab which does not have a Scan Station and scanning U-16mm is a pretty basic framing setup on the Scan Station. We often do 16:9 or 1.1.85 cropped scans of Standard 16mm and as long as the lens is good and the exposure is right they can look really fantastic.
  14. I really like the Aputure 120d II I got it on eBay for much less than the retail, it is daylight but very nice fixture. I would look for some Kino-Flo 2 and 4 bank fixtures for soft light you can get both Daylight and Tungsten Fluoro bulbs and they are dimmable. Alost look at Ianiro RedHead PARs or Mole-Richardson Teeny, Baby etc. fresnels they are really solid and usually less $$ than Arris.
  15. Every lab I know of has a pile of scanners, Spirits and Scannity Northlights and Arriscans Golden Eyes and Oxberrys hanging around. Every lab I know of has at least one Scan Station.
  16. There are more Pros than Cons to the Scan Station line of scanners, the addition of 2-Flash "HDR" to the 5K SSP basically just fixes my biggest issue with that scanner. It is great for 35mm dailies and 35mm Commercials and Music Videos etc. which need 4K or 5k overscan and a fast turnaround. The HDR option for the SSP cost the same as the HDR option for the full Scan Station and that is fine. They do not offer HDR for the Archivist but the Sony Pregius sensor in that machine has far better noise performance. I see these two machines as basically replacing my two Spirit DataCine machines. Every lab I know of has a pile of scanners, Spirits and Scannity Northlights and Arriscans Golden Eyes and Oxberrys hanging around. Every lab I know of has at least one Scan Station. YMMV
  17. I find that most DP's will look briefly at the Kodak spec sheet but then do allot of tests with the stock and camera lens they want to work with. Also if they plan to do any push or pull processing etc. or other look creation work they test test test.
  18. The Spirit (all versions) uses a Xenon lamp (700w on the newer 2K/4K) and it has a filter wheel and a few other filters auto drop in which alter the light before it hits the quartz rod to illuminate the line slit on the gate. These filters do not do RGB balance but are for different stocks like positive or negative etc. The color separation is done with dichroic filters on the CCD line arrays. There was a telecine made by Sony called the Vialta that initially had a Xenon lamp and a dichroic box like the B&H printer and a F950 3xCCD camera image head. I know they eventually went to RGB LEDs for the lamp house in a version upgrade. As far as I know that early Vialta was the only Xenon RGB balance-able lamp house scanner made. Everything else has been a hot lamp Xenon or Metal Halide (Northlight) etc or eventually individual RGB+IR LEDs The Arriscan has always been RGB+IR LEDs in a (beautifully made) integration sphere. The Northlight 1 and 2 eventually saw FilmLight make a RGB+IR LED replacement lamp. I think with the right high end RGB LEDs (maybe a mix of 2 colors of R and G ?) that LEDs work as all the scanners running these days (except the Spirit 2K 4K) are running some form of LED lamps. I am not exactly an engineer but nobody is complaining about Arriscan or Scannity scans color fidelity as far as I know. I was thinking that a newer daylight balanced Xenon equivalent LED film lamp might be a possible replacement for the Xenon lamp in the Spirit 2K/4K series scanners to keep these true RGB scanners relevant.
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