Hello! Please would you tell me what this little shutter speed tester is, and where did you get it?Thank you and best wishes, Luke Bonjour! Si vous plait, que ce que c'est cette petite machine pour les vitesses? D'ou est ce que vous avez la? Merçi beaucoup, Luke

Bonjour Karim, merci pour cette vidéo. Juste par curiosité, savez-vous comment un réparateur va réajuster les vitesses ?

What is that you used for testing shutter speed?

I bought a "CLAed" Opema II from this Cupog guy, and I tested the camera with film as soon as I got it. The results showed shutter capping, and lens front focus. When I asked him and showed him the photos indicating problems, he started to quibble instead of admit he overlooked the problems. Won't deal with him again for sure.

Be careful. I sent CUPOG/Geyza Dunay a Praktisix IIa for repair in the beginning of August 2016 and then he stopped answering my emails. Its November now and there are still no answers and still no camera. Think twice before sending to him.

I'm surprised to hear this, because I bought several Pentacon Six cameras and lenses from him and they worked great. My friends also had great experiences with their Flexarets and P6 cameras.

I am a former camera repair technician. What I can tell is that you could not expect with a cloth focal plane shutter the same results and accuracy as a modern metallic electronically controlled shutter. Exaktas and Pentacon six uses some semi artisanal assembly technics and components, and with mechanical play, lack of quality control (even on those marked 1Q), inertia of curtains movements and from the ribbons, add to this fact. Another thing is that I think a 1/500s for a 1/1000s is a very good result for such kind of cameras, and you could not expect better. All other medium format makers used leaf shutter, and even with Compurs and Copal consistency of exposure is +/-20% of the selected speed. This is factory specs. It was the film in most part that compensate these variations and the work under the enlarger. the only medium format camera I saw that had consistent shutter speeds with focal plane shutter were the Bronica EC and ECTL series with electronically controlled shutter. With a camera well adjusted, of course. Concerning the exaktas, you need to have the original type of curtains because otherwise this will add friction inside the shutter crate and develop uneven exposure time. And even with this, it is very difficult to achieve the correct and even shutter speeds. It is a very early design back from the thirties. Other camera makers then used ball bearings, and more precise machined parts, and more complex designs too, like Leicas M, Nikon RF and SLR's. If you know the real exposure time, then it is not a problem to make picture. In black and white, you can overexpose in a wide range and it will be always useable for analog printing. But with poor scanners this is another story.

What a device behind a camera to test the shutter?

Hi, This is the tester I use in the video : www.ebay.com/itm/Camera-shutter-tester-curtain-tester-and-EV-tester-with-light-source-/161779795995?hash=item25aad3c81b The seller/maker has different options for his testers. Make sure you check his other items to find the one that suits your needs... They work fine... Have a nice day,

Hi, can you please tell me what's the tool you are using to metering the shutter speed and if we can buy it from the net. Thank you in advance