Well that counts me out. I got rid of both my Hammarlund HQ180's. All I have is my Hammarlund HQ110, ham band only. So no WWV for me. This house is just too small for all my gadgets.
If you'd like a replacement I can offer you a HQ-180 and a Hallicrafters SX-28, both of which work but could benefit fron being re-capped. My wife keeps bugging me to get rid of "my little boy toys" that are cluttering her shelves in the garage. Pick-up only... those beasts would cost a fortune to ship!
I have one. It works brilliantly. How could anybody with a modicum of intelligence think it works by recording sound? Unbelievable.
Shutter testers are devices for increasing photographers sense of insecurity, because if they are inaccurate what are you going to do about it ?, if I suspect they are out I get mine tested by a professional and have him adjust them if neccesary.
No, Henry... I got this from the original owner here in CA. And don't even think of coming out here to chase women... all of the good ones are taken, and the remainders are a bunch of flighty bubble-headed bleached blondes with ugly tatoos.
I wonder how well such a thing would work if I use an oscilloscope instead of a sound card?
How big is the aperture for the sensor. If it's too big it's not accurate.
How sensitive to light it is? If it's not sensitive enough then we would need lots of light.
How fast it is? If it responds slowly then it can't measure high shutter speed.
Depends on how accurately calibrated the timebase in the scope is, and that would be up to the operator.
I trust those computer soundcards about as far as I can spit a rat.
If this tester has a limit of 1/1000, and users have said it's straining at 1/500, then it's nowhere near fast enough. That could be the cheapo soundcard, though.
Depends on how accurately calibrated the timebase in the scope is, and that would be up to the operator.
I trust those computer soundcards about as far as I can spit a rat.
If this tester has a limit of 1/1000, and users have said it's straining at 1/500, then it's nowhere near fast enough. That could be the cheapo soundcard, though.
No, Henry... I got this from the original owner here in CA. And don't even think of coming out here to chase women... all of the good ones are taken, and the remainders are a bunch of flighty bubble-headed bleached blondes with ugly tatoos.
The seller is selling what is really a probe and not a complete shutter tester. It was designed to work with sound card but what if I use it with a good scope. The time base of a reasonably good scope is much more accurate than any accuracy one may need with the shutter speed.
1. The size of the aperture on the probe is important because if it's large then the rise time and fall time of the waveform is going to be longer as the shutter uncovers and covers the probe aperture.
2. Small aperture size is good but then the sensor wouldn't have sufficient output or one may need a lot of light which can be a problem especially if one tests it with lens on.
3. The response of the sensor itself. Some sensor may take time to change their output and thus limiting how high a shutter speed one can test even if it connected to a 200Mhz scope.
If you could fire the shutter of your F100 show me how as I could not fire the shutter of my F5 with the back opened so I never could test the shutter of my F5.
Well, all I can say is this.
The thread title is a question. The question is, "what is your opinion of this shutter tester?"
My opinion is that it isn't worth bothering with.
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