Shutter tester for shutter speed up to 1/1000th $14.99

[alex]

I've now tested a few box cameras, and it's pleasing how consistent each model is, in particular my old Zeiss Tengor, which is rather more sophisticated than the average box camera, having a choice of three apertures (f/11, 16, 22) and three focus zones, 1-2m, 2-8m and 8m-inf. I've also measure a couple of Box Brownies, and found them repeatable, though with a possibly interesting artefact. I did five or six measures on each.

Here's the measured speeds in 1/seconds :-

Zeiss Tengor : 41, 41, 39, 39, 39 (Avg 40)
Kodak Brownie No.2 : 58, 68, 60, 68, 61 (Avg 63)
Kodak Portrait Brownie : 41, 46, 41, 44, 42, 47, 43 (Avg 43)

I've not yet done any statistical tests, but there may be an interesting effect noticed if you look at the results for the first Brownie. The speeds seem to alternate between a slower and a faster, around 60 and 68. If you look at the second Brownie, it seems to show the same property, alternate exposures oscillating between about 42 and 46. The Tengor doesn't show this.

The Brownies however work slightly differently ; in these, you push down on the shutter lever to take one picture, then pull it back up to take the next, whereas on the Tengor you push the shutter lever, the picture is taken, and the lever returns to the start position. Taking the front off each camera, you can see that on the Kodaks, the shutter disk rotates clockwise for one exposure, then anticlockwise for the next, whereas on the Tengor, the shutter disk rotates clockwise, and then a baffle moves in to cover the aperture while the open disk rotates back to its starting position, the baffle stopping light reaching the film during this action. So on the Brownies, this may be reflected in slightly different exposure times, though as can be seen, not enough to have any effect whatsoever on the exposure value to be recorded on the film.

There, I just knew this would be fun. (Do you think I should get out more?)
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Alex

[vfmoto]

[vfmoto]

Shipping to US has dropped form $17 to $14 for priority mail and from 11.91 to $9 for standard mail.

Don't have any box testers now but I hope to make another batch in a week.

Cheers,
Florin
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Camera shutter testers for speeds up to 1/1000th of a second. $14.99

[Attila]

It is available in my shop from now.

Click here to see on Ebay
_________________
Attila - admin --- BUY FRESH FOMAPAN TO HELP KEEP THE FACTORY ALIVE ---
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Items on sale on Ebay

35mm: Konica A4, Konica IIIA, Konica FC-1
MF: Konica Pearl I,II,III 6x4,5 Konica Semi Pearl
Film: Foma,Kodak, Fuji DIY development C41, FOMA LQR
Scan: Epson V500, scanassist (http://www.scanassist.org)
Shutter tester: LCD tester from member vfmoto
Digital: Panasonic G1, Sony Nex-3, Samsung NX100
Lenses: Konica Hexanons,Carl Zeiss,Carl Zeiss Jena,Meyer-Optik,Minolta MD,Yashica ML,Nikon,Olympus OM
DIY E-6,C41 and B&W

[fotofundi]

Hi
What is the slowest speed it will test accurately?

[Attila]

[vfmoto]

[Attila]

And how important especially if you plan to use slides with folder cameras.
I got back Pearl III from C'lad I was exciting and didn't measure shutter speeds. I made only one frame with perfect exposition....
_________________
Attila - admin --- BUY FRESH FOMAPAN TO HELP KEEP THE FACTORY ALIVE ---
Foma Campaign topic - FOMAPAN on forum - Webshop EU

Items on sale on Ebay

35mm: Konica A4, Konica IIIA, Konica FC-1
MF: Konica Pearl I,II,III 6x4,5 Konica Semi Pearl
Film: Foma,Kodak, Fuji DIY development C41, FOMA LQR
Scan: Epson V500, scanassist (http://www.scanassist.org)
Shutter tester: LCD tester from member vfmoto
Digital: Panasonic G1, Sony Nex-3, Samsung NX100
Lenses: Konica Hexanons,Carl Zeiss,Carl Zeiss Jena,Meyer-Optik,Minolta MD,Yashica ML,Nikon,Olympus OM
DIY E-6,C41 and B&W

[hoanpham]

Is there any tester left?

I have a bunch of old film bodies that need to verify.
Please send me a PM.

[vfmoto]

Yes, I still sell shutter testers and I sent you a PM
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Camera shutter testers for speeds up to 1/1000th of a second. $14.99