experience with this shutter tester?

[Frank_E]

have been browsing ebay for a shutter tester
and have only seen the kits that you plug into the audio board of a computer

today I saw this one

http://cgi.ebay.ca/Shutter-Tester-Ra...item2a05ae96d0


has anyone tried it?

thanks

[numnutz]

I got one about 3 months ago it was delivered in about seven days. - It seems to work ok but I cannot test the meters accuracy.

You may need to make a jig up to hold the light, lens and tester in alignment. It also needs a fairly bright light to measure by.

The speed is indicated in microseconds, I developed a simple spreadsheet to convert between the readings and speeds in a fraction of a second. You can have a copy of this if you PM me.

Be prepared to be somewhat disappointed with the accuracy of speed readings you get but it depends on what you paid for the lens shutter combination. However I am pleased with the speed of my 100 year old Thornton Pickard Roller blind shutter, on an average of ten shots, after five to "warm up", I got results varying between 1/25 sec and 1/30 second.

Hope this helps

nn

[sully75]

http://www.baytan.org/prak/shutter.html

you can build your own pretty cheap too.

[Fotoguy20d]

I built my own with around $10-15 worth of parts from digikey and Home Depot. It's the plug into the sound card variety, but I find it accurate enough (more so than most of my shutters anyway). It's good to around 1/100s but can't really be read accurately beyond that. I use a Petzl LED headlamp as my light source, which makes it easier to work with.

Dan

[sully75]

Dan what plans did you use?

[Fotoguy20d]

I used this one. BPW-40s seem to be impossible to find so I used a BPW85 (751-1023-ND). Resistor I used: CMF3.83KQFCT-ND. For the case, I used a 4" square, gray outdoor junction box from Home Depot - cost more than the rest of the parts put together. I happened to have a 2 position AA battery holder from keystone that I used. I never got around to installing a switch - I just pull one of the batteries when I'm done using it.

[Sevo]

I have one of them. Good enough for the purpose and accurate, too - not that a µs resolution counter is exactly high science, that thing seems to be a Chinese hardware copy of an old Elektor/Elektuur kit from the eighties. But less than a hundred € including shipping seems a fair deal given that it would take two or three days and a few odd chips that are not that easy to locate to build my own.

[Farside]

I've heard good things about this one from a fellow member over on mflenses forum...
http://shop.ebay.com/vfmoto/m.html?_...1&_from=&_ipg=
I will buy one of these soon, and I'm not in the habit of throwing money away.