John Salim

If the original Single 8 cassette design was just a little larger ( to accommodate 50ft of acetate film ) the 'S8' system would have been perfect ! John S 😎

Looks IB Tech to me, going by the leaders and B&W soundtrack. John S

Yes, they print the format's actual image size down onto 35mm. That way the grain is the same as what the original format would be. John S

I believe they output everything to 35mm stock only Peter ( ... just the image's actual 'patch' size is recorded ) John S

I've never heard of any processed film accumulating density. I'd check your projector's bulb ! John S

I've had a request from a customer who has a 16mm Pathé Webo "Super 16" camera that needs repairing ( ... not actually 'super 16' format ) Does anyone know of a UK ( preferable ) or European repair shop able to handle this vintage camera ? Many thanks, John S

Just in case anyone's interested, someone ( not me ) has put a couple of 16mm Oxberry wet gate shuttles for sale on eBay. https://www.ebay.co.uk/itm/296836807374 https://www.ebay.co.uk/itm/296836820546 John S 🙂

Here's a couple of videos worth looking at .... and ... John S 🙂

Incredibly I get around a dozen or so 9.5mm Ektachrome 100D ( 7294 ) every year for processing from customers in Germany, Spain, France and Belgium. Apparently there's a '9.5 group' who arrange to have their 16mm 100ft stocks slit and perforated by some retired gentleman in Germany. John S ☺️

Wenqi, read this article .... https://www.wired.com/2014/08/wtf-just-happened-soap-opera-effect/ John S 😉

.... so, who manufactured it ?

Was this camera actually manufactured by Paillard Bolex ? ... it just doesn't look 'Bolex' to me 🙄 John S

In theory yes, but using 'camera film' won't be much good because of the severe contrast mis-match. That's why special duplicating films were made to help match contrast tones. Those films were tungsten balanced and very slow ( around 5 to 20 ASA ) and designed for printers. Kodak also made Ektachrome SO-366 which was suitable for copying equipment using flash ( ie... Bowens Illumitrans ). It was actually very similar to 5071 but intended for short exposures. John S 🙂

Hi Matthew, ( see pictures attached ) The Duplicopier 3570 works 'upside down' to conventional rostrum cameras, by using an enlarger to print onto film. It uses print masks from 35mm to 6cm x 12cm. The sprocket drive in not perf accurate ( pretty out really ), so you couldn't run processed film through a slide mounter for example. Everything has to be hand finished. The lens is a 75mm f4 Rodenstock Apo-Rodagon D which is designed for 1:1 duplicating. It will print from 35mm to 120 6x6 format. The dupe film I use is Fujichrome CDU II Duplicating film, ( and unbelievably ) is still good to use even though it's well out of date. There's a slight D-max loss - but nothing serious I'm pleased to say ! Cheers, John S

Matthew, thank you so much for posting your contribution and especially the video link. I've never seen these machines in action ( I would have loved to have operated one ) I do occasionally film duplicating ( stills ) on 35mm and 70mm. My machine is a rather simple 'roll box' type controlling a De Vere 504 enlarger. I may even be the last person doing slide dupes ! It can print up to 6cm x 12cm panoramic on 70mm - though you cannot do much creative with it really. All the best, John S

The simple answer is, the longer the focal length, the shallower DoF gets 🙂 John S

Hi Christian, Mark Dunn's the Steenbeck expert to ask ..... https://londonsteenbeck.eu5.org/ Good luck, John S ?

Thank you Simon and Jöerg for your help and very useful information. It will be useful as future reference when reloading ( unknown ) cassettes with regular super 8mm stocks. Best wishes, John S

Is there a definitive guide for the notch coding on a 'Single 8' cassette ? I see there's three possible areas on a cassette for switching ( see photo ) Many thanks all, John S ?

... and for your camera's protection, make sure you use acetate and NOT polyester base film ( preferably without spices ). John S

Hi Deniz, Sadly I believe I may be the last one left to produce 35mm and 70mm duplicate transparencies now. If your search fails in the US, get in touch - I'm in the UK. Hope that's helpful, John S ?

Nicely done Uli ! ... always enjoy watching your films. John S ?

Just so nobody asks, there are non of these frames available now as Andrew had my spare ( I've kept one for film dupe balancing ). John S ?

I've got a spare 35mm slide frame shot on Kodachrome 64 if that's any use ? John S ?

No worries Seth, BH perforations are almost 3mm wide to give you an idea of scale. JS ?