In a public reply to a few private inquiries, here's more information about this camera:
This camera started off life as LTR7 #C834, purchased by remote from the UK. It was modified there by Les Bosher the camera tech before it was sent over here to the US, to run at higher speeds than the 7 ran, and to have its lens fitted and collimated. I thought initially it was an LTR54, i.e. the top speed was 54fps, since the top speed wasn't 32fps any more (like the original LTR7's had) but 54fps, or so I thought, since people who know Aatons know about the 7s and the 54s, and that's about it.
I didn't explore the top speed further as I mostly only shoot at 24fps anyway. But since the camera was already at Les's and he offered to do these mods with the lens and everything for a price I could afford, I had them done and the camera was then sent over here for use.
Very light use, it turns out. However, when I last checked the running of the camera a few days ago, I noticed that the top speed on the dial was not 54fps but 70fps. I believe that makes this into what was used to be called an LTR54-HS camera mod. Never having seen a real LTR54 before, I can't tell you, because maybe all 54's went to 70fps. I don't know for sure.
No, 70 fps is not on the Aaton list since it's a modification and wasn't actually offered as a stock item. It's definitely an LTR though, with the mechanical magazine drive and transport, and not the electo-motors or digital displays of the XTR range of cameras.
Note again that this is a modification - i.e. apparently Les took the motor and controls for a 54 HS and put them in my LTR7, and since that is the difference between the LTR7, the 54, and the HS, then you can call that what you want to. I wouldn't call it an Aaton LTR54 or 70HS because it didn't start life that way, but that's me. I don't think this was a rinky-dink DIY mod, since this is Les Bosher we're talking about here, but I do wish I knew more about the various customizations and modifications that were done at the time to be able to enlighten you further.
There are no batteries available for this camera, it's been sitting for quite a while, at least a couple years, without being used. The batteries have long since expired, and I really only used an old 12v camera belt and another 3rd party shoulder-strap type 4-pin XLR battery for it when last I used it. The on-board battery was near the end of its useful life when I bought it, with the intention of re-celling it, but I never got around to it. I didn't even check to see if it would hold a charge, I just pulled the battery belt and other battery from my Eclair setup and used them with the Aaton via the included 4-pin XLR setup.
The last time it was serviced was a few months prior to it being put away, so call that more than three years ago, with zero runs in between then and now, except for a few days ago.
Since scratch tests were done the last time I had it serviced, I can say that unless something drastic happened in storage, the camera or the mags aren't likely to scratch film. There may be light leaks due to mag lining erosion, but it doesn't look that way to me.
Why don't I check it out? Well, if I had the thing CLA'd and ran clip tests, then it would be going for twice the price, like all the other currently running Aatons on eBay and other places. I paid well over $6k, used, back in the day, plus Les's mods, so I figured 50% was fair.
Super16 Inc in NYC and Abel here in Burbank have both quoted just over a thousand dollars to have the camera and the three mags serviced, cleaned and prepped for shooting.
Normally I'd have that done prior to a paid shoot, with the production paying for that service. But since I haven't had calls for that (or my 35mm gear either) then it's not happened recently.
At this moment, the package with the O'Connor legs and matte box is going at around $3k. That's basically $2600 for the camera and three mags (I thought the third mag was worth $300, don't you?) and $400 for the O'Connor 30 and the Chrosziel matte box with gold rods, etc., also a pretty reasonable ask. They're not in the best of conditions by a long shot, but again the price I'm asking has been adjusted to allow for that. They're not pretty, but they get the job done.
There's 17 cans of full or nearly full 400ft neg in my freezer (I'll take an inventory soon and post it here). However, I'd say that the stock was long gone, even if it's been frozen, since it's been there for many years (over 5). I wouldn't count on it being solid at all, without clip testing it first. I didn't put a price on the stock for that reason, just throwing it in there to the person who buys the camera.
Yes, the camera itself should be tested again. Yes, it runs, yes, it's smooth. But I wouldn't put it on a paying job without having it checked out first. That's $1100 at Super 16 in NY plus shipping, and around the same here at Abel. Apparently the camera tech here at Abel, whose name escapes me for the moment, is the best trained Aaton tech in the country.
Hope this answers questions that people might have.