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Mark Dunn

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Posts posted by Mark Dunn

  1. 3 minutes ago, David Sekanina said:

    Only on the feed side. On the take-up side you need to use a core, because of the friction clutch. There are several posts on this topic on this site.

    Well there you have it. Remember that 100' on a core, (in a black bag because the box is not lightproof) will not fit in the plastic Kodak box. If you don't need the whole 100' you could just discard the excess film. If you do, I would tell the lab it is short.

    • Upvote 1
  2. 39 minutes ago, Boris Kalaidjiev said:

    I’m trying to do a steadiness test on both of my mags tomorrow and was hopping on using some daylight spools. 
     

    Does this sound like a bad idea?

    Daylight spools scrape on the magazine lid in some cameras- IIRC they sometimes did in the ST. Reading what Baltasar says about spool locks, if you have them, probably not. But noise wouldn't matter for a test anyway.

  3. On 7/27/2022 at 7:15 AM, David Sekanina said:

    it's a crude and silly idea ?

    It's not- it's a variation on how we were told to do it at film school. Just blip the start button a few times until you see the flyback bar close to the top (or bottom) of the screen. The mirror and film are 180deg out of phase so the bar will record at the bottom (or top) of the screen.

  4. 2 hours ago, Gareth Blackstock said:

    I already use a projector for viewing, and sometimes I use an old mini dv camera to record "off the wall" 

    I'm not sure the TRV will be a whole lot better than that, except for the convenience. For much less money you could probably rig a right-angle mirror and have the DV record the image directly. There used to be clip-on viewers for projectors that did this.

    $100....if you can spare it, maybe.

  5. You can't possibly have even an electronic shutter open wider than 360 degrees, so the limitation is the reciprocal of the frame rate.

    That sequence was of course shot on film- it's either step-printed- you see each frame more than once, hence the freeze-frame effect- or printed from non-adjacent frames. It may even have been shot on an SLR with a motor drive.

    You don't need to undercrank to get that effect- that's not how it was done. Undercranking speeds up action, it doesn't slow it down.

  6. Seems to be a composite NTSC output so you would need to convert that to digital to get it onto a PC. In fact in Australia you couldn't even record it on a PAL VCR without standards conversion. If it's a PAL version that would be a bit easier but you'd still have to digitize the signal. otherwise you would be limited to viewing on a monitor with the correct inputs.

    Manual here

    https://issuu.com/cinema62/docs/pdf-elmo_trv-16_user_manual_23_page

    Of course you can't project with it, the image goes straight into the camera. The resolution is pretty poor, lower even than SD. I would want to pay less than $370. About £200, right?

    It's not a very good way of getting a decent 16mm. image onto a computer. Seems to me that for testing only, an actual projector might suit you better. But they seem to cost more.

    There's one in NSW on ebay starting at $99 looks ok

    item number

    334626547722

  7. If you don't know about it already, I'm using the "Video Tachometer" app on iPhone. It uses the camera. I got it to set the speed on the Steenbeck, but it might suit you for this job. I use it to freeze the motion of the sprocket teeth but I don't see why it wouldn't work on the shutter.

    Just shine a light through the lens mount and if you see the gate you have a rough guide. I could imagine drawing a wavy line on some junk film and seeing if the app shows it as stationary. You adjust the frequency on the app until the moving part is stationary, then you have the running speed. It's accurate to 0.1Hz- in our case, that's 0.1 fps of course. You use a torck for illumination, it doesn't use the camera's LED.

    It's also fun to check the mains frequency by looking at an LED bulb.

  8. 14 hours ago, Russ Murray said:

    Hi Kevin,

    I've done the research, and the only company (other than DIY advice) processing Kodachrome to B&W negatives seems to be ProcessOnePhoto.com

    Cheers!

    Russ

    The website doesn't mention cine processing at all, but anyway, the post is 12 years old and the OP has not been on the site for 5 years.

  9. 2 hours ago, Patrick Cooper said:

    I once read in an old magazine that the Australian adventurer and entrepreneur Dick Smith used super8 to film one of his expeditions. This could have been the 70s or early 80s. There was a photo showing him and a rather large Chinon camera (can't recall the model.) 

    This one, but in home-movie style. The later ones are 16mm- I expect he dropped S8 like a hot brick when there was the money for 16.

    https://dicksmithadventure.com.au/canyoning/

  10. 1 hour ago, Doug Palmer said:

    shifted their optical centers depending on the focus.   

    Looking at the rigs, it's possible that the lenses could shift laterally- what's called "cross front" in stills photography, presumably to avoid overlapping fields of view- the "double images" referred to. I suspect there wasn't room in 35mm. for the tilt you suggested.

  11. I could link you to them........but you'd still have to download. Hmm. Maybe the rustbelt needs some WD-40.

    Top 2 plates for picture, bottom 2 for sepmag sound. You also use the right-hand mag sprocket for comopt and (very rare) commag (stripe). But I did have one commag job, and it more than paid for a brand-new stripe head.

    Pretty intermittent work as I have no contacts in the industry (well, I do now, but not many, and I don't know how to exploit them) and it's a pretty rarefied specialism. By definition no-one needs me again, because they view the film, take it away to scan, and...........that's that.

    '19 was my best year, right before you-know what. '21 picked up then nothing for 18 months till the 16mm. show I mentioned.

  12. I had the 8Z adapter type, on a rotating locking mount so it still worked with a rotating filter thread. It vignetted below about 15mm. on a short zoom so yes, primes would have been better. Still not very convenient, and I only ever shot a few carts with it.

    The last time I used it was for some stills to advertise it on ebay. It was quite decent, with well-controlled flare.

    Now, of course, I'd probably just crop down a wide angle. That's Techniscope, right??

  13. This is never mentioned and I think it's because it's not possible.

    I've just had a quick measure and I don't think you can get the flange of an M42 lens close enough to the focal plane.The putative adapter would push the lens further out. The lock collar would have to come off.

  14. 12 hours ago, Dom Jaeger said:

    To give you a sense of how many different scope systems there were, here’s a list of widescreen films from the 20s to the 90s that gives the format trade names:

    http://www.redballoon.net/ws.txt

    Wow.

    Former Kowa 'Scope user in Super-8 here. I let it go a few years ago during one of the periodic lens crazes to finance a replacement DSLR. It did that, but didn't really keep up with inflation. Still have a couple of 'Scope 50ft. reels for some unrealised 80s epic. Of course now I could desqueeze them in Lightworks.

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