Kamerastore.com: 5 Levels of Shutter Testing: How Accurate is your Film Camera?

[Andreas Thaler]

SPT Journal March-April 1990

 

[ic-racer]

This is on Craigslist. Defiantly worth $2,800! I'd buy it if it were closer.

 

[Andreas Thaler]

This is on Craigslist. Defiantly worth $2,800! I'd buy it if it were closer. View attachment 359158

Very seductive!

If I buy this, my wife will throw me out of the kitchen and all my tools forever.

 

[ic-racer]

This was posted on Large Format forum. A new shop for film camera repair opened in France at the start of this year. They have some nice equipment!

réparation, restauration d'appareils photo Limoges

réparation appareil photo limoges, restauration appareil photo et mécanique photographie limoges

www.optomeca.fr

 

[Andreas Thaler]

This was posted on Large Format forum. A new shop for film camera repair opened in France at the start of this year. They have some nice equipment!

View attachment 361949

réparation, restauration d'appareils photo Limoges

réparation appareil photo limoges, restauration appareil photo et mécanique photographie limoges

www.optomeca.fr

It seems like the best things have already been designed

 

[Andreas Thaler]

@ic-racer

Have you already ordered the Reveni tester?

Reveni Labs Camera Tester — Reveni Labs

Click here for accessories you might need! Full Specifications FEATURES Three-sensor horizontal and vertical curtain analysis Single-sensor shutter efficiency and leaf shutter analysis Aperture and lens transmission Automatic exposure testing Multi-sample averaging Continuous

www.reveni-labs.com

 

[ic-racer]

@ic-racer

Have you already ordered the Reveni tester?

Reveni Labs Camera Tester — Reveni Labs

Click here for accessories you might need! Full Specifications FEATURES Three-sensor horizontal and vertical curtain analysis Single-sensor shutter efficiency and leaf shutter analysis Aperture and lens transmission Automatic exposure testing Multi-sample averaging Continuous

www.reveni-labs.com

I'm happy with the one I made. If you want to make one like it, I have a thread about it and extra PC boards and parts I can send to you. I had to order multiples of many components.

For people that don't want to build their own, it looks like the Reveni is the best thing available. Have you ordered your Reveni

Building A Professional Grade Shutter Tester

While gearing up to make a shutter tester in this thread (https://www.photrio.com/forum/threads/build-a-shutter-tester-for-focal-plane-shutters-cheap-easy-it-works.197756/page-5#post-2663014) I came across all the schematics, BOMs, Gerber files and STL files to make a professional grade shutter...

www.photrio.com

 

[Andreas Thaler]

I'm happy with the one I made. If you want to make one like it, I have a thread about it and extra PC boards and parts I can send to you. I had to order multiples of many components.

For people that don't want to build their own, it looks like the Reveni is the best thing available. Have you ordered your Reveni

Building A Professional Grade Shutter Tester

While gearing up to make a shutter tester in this thread (https://www.photrio.com/forum/threads/build-a-shutter-tester-for-focal-plane-shutters-cheap-easy-it-works.197756/page-5#post-2663014) I came across all the schematics, BOMs, Gerber files and STL files to make a professional grade shutter...

www.photrio.com

I didn't know that, respect!

Thanks for the offer, but I lack experience here resp. don't know enough about the topic yet.

Therefore I will order the Reveni as soon as it is available and will familiarize myself first with the topic.

 

[ic-racer]

The one I made and I believe the Reveni are based on a Kyoritsu. You might want to check out the Kyoritsu instruction manual on the "Learn Camera Repair" website. That can give you an idea of the functions the other shutter testers are copying. (check your e-mail).

All the devices based on the Kyoritsu test the shutter speed + curtain velocity. They test the camera's built-in meter with a calibrated light source. They also test if the auto exposure gives the correct exposure and they test flash synch too.

 

[Andreas Thaler]

The one I made and I believe the Reveni are based on a Kyoritsu. You might want to check out the Kyoritsu instruction manual on the "Learn Camera Repair" website. That can give you an idea of the functions the other shutter testers are copying. (check your e-mail).

All the devices based on the Kyoritsu test the shutter speed + curtain velocity. They test the camera's built-in meter with a calibrated light source. They also test if the auto exposure gives the correct exposure and they test flash synch too.

View attachment 361962

Thank you!

 

[Laurent]

This was posted on Large Format forum. A new shop for film camera repair opened in France at the start of this year. They have some nice equipment!

View attachment 361949

réparation, restauration d'appareils photo Limoges

réparation appareil photo limoges, restauration appareil photo et mécanique photographie limoges

www.optomeca.fr

I used Maël's services some years ago, before he went to another adventure, and trust him 100%. Easy to deal with, good communicator, good service...

 

[Laurent]

I used Maël's services some years ago, before he went to another adventure, and trust him 100%. Easy to deal with, good communicator, good service...

update: I sent him a lens last week, got a call today to discuss the work to be done and the cost estimates... quite cool!

 

[Alan Edward Klein]

Very seductive!

If I buy this, my wife will throw me out of the kitchen and all my tools forever.

Save your marriage. Bracket.

 

[Andreas Thaler]

Save your marriage. Bracket.

 

[Laurent]

I started measuring my cameras, as I need a reference for the "F-one-kenstein" project.

I built a first version of a tester using an Arduino Leonardo and a photo transistor. The plan is to go up to 5 capters to get more information about shutter behaviour.

At the moment I'm wondering if my tester is accurate or if all my cameras are off...

The "main" F1 is 33% slow at 1/500 to 10% at 1/60 (testing interrupted due to some complaints about the repeated noise ... to be continued)

My beloved M4 is awfully slow, 71% at 1/1000 (1/333 instead of 1/1000), 50% at 1/500, then 30% for 1/250, 18% for 1/125, still 10% for 1/30, and it starts being accurate enough at 1/15...

The Kodak Brownie Hawkeye is either too slow for 1/50 or too fast for 1/25, both measured at around 1/30th...

I'll run some more tests tomorrow, but this sounds like some cameras need CLA. Not sure I'll dare opening the M4 though.

 

[ic-racer]

At the moment I'm wondering if my tester is accurate or if all my cameras are off...

Focal Plane Shutter Speed Tester Calibration

Without going into detail about how to make a shutter speed tester (there are many ways to make them) this thread is about calibrating or validating the values obtained when an audio analog-digital interface is used to record the shutter speed. Audio analog-digital converters commonly sample...

www.photrio.com

 

[Laurent]

Focal Plane Shutter Speed Tester Calibration

Without going into detail about how to make a shutter speed tester (there are many ways to make them) this thread is about calibrating or validating the values obtained when an audio analog-digital interface is used to record the shutter speed. Audio analog-digital converters commonly sample...

www.photrio.com

thanks! This is precious information!

This morning nobody is there to complain about the noise, so I could test my "new" Canon TX... It's the most accurate of all at the moment (AE1P still has film in it, I did not try the Rolleiflex yet) which is interesting since the camera clearly needs some love (aperture test lever is slow to get back, everything feels dry and stiff...)