brightnorm
Flashaholic
- Joined
- Oct 13, 2001
- Messages
- 7,161
"X5 to the rescue" inspires comparison test with Opalec Newbeam and Attitude
Last night I was trying to find a small electronic part that I suspected had slipped down somewhere behind furniture or some temporary piles of books and luggage my girlfriend had stacked up in my living room. There was a rage sitting on the sill but I decided to use an LED instead. I hauled out the Opalec Newbeam and searched; great light but too dim for what I needed. Then I tried the Attitude; brighter but still too dim. Finally I dug out an X5 and VOILA! There was the part, easily illuminated in that brilliant beam. At this point I decided to do a runtime/brightness comparison.
CONDITIONS:
Instrumentation: "eyes only"
Observers: Two (my girlfriend and I)
Test intervals: Once hourly
Test target: 10'high white ceiling
PERCEIVED BRIGHTNESS:
HOUR(S)------INOVA------OPALEC------ATTITUDE
0----------------1 --------- 3 ------------2
1----------------1 ----------3 ------------2
2----------------1 ----------3 ------------2
3----------------1 ----------3 ------------2
4----------------1 ----------3 ------------2
5----------------1 ----------2 ------------2
6----------------1 ----------2 ------------3
7----------------3 ----------1 ------------2
8----------------3 ----------1 ------------2
NOTE: Each hour number represent results at the END of that hour. Example: Hour 3 = perceived brightness at the end of the third hour.
Test was stopped after eight hours. Although
non-instrumented, our agreement was 100%. Objectivity was maintained by our writing separate observations and comparing them only at the test's completion. We both agreed that as the hours progressed, choosing between the Opalec and the Attitude was complicated by the Opalec's different color temperature. This added to the fact of non-instrumentation makes these results far from definitive.
I hope they may prove helpful despite their limitations.
Brightnorm
Last night I was trying to find a small electronic part that I suspected had slipped down somewhere behind furniture or some temporary piles of books and luggage my girlfriend had stacked up in my living room. There was a rage sitting on the sill but I decided to use an LED instead. I hauled out the Opalec Newbeam and searched; great light but too dim for what I needed. Then I tried the Attitude; brighter but still too dim. Finally I dug out an X5 and VOILA! There was the part, easily illuminated in that brilliant beam. At this point I decided to do a runtime/brightness comparison.
CONDITIONS:
Instrumentation: "eyes only"
Observers: Two (my girlfriend and I)
Test intervals: Once hourly
Test target: 10'high white ceiling
PERCEIVED BRIGHTNESS:
HOUR(S)------INOVA------OPALEC------ATTITUDE
0----------------1 --------- 3 ------------2
1----------------1 ----------3 ------------2
2----------------1 ----------3 ------------2
3----------------1 ----------3 ------------2
4----------------1 ----------3 ------------2
5----------------1 ----------2 ------------2
6----------------1 ----------2 ------------3
7----------------3 ----------1 ------------2
8----------------3 ----------1 ------------2
NOTE: Each hour number represent results at the END of that hour. Example: Hour 3 = perceived brightness at the end of the third hour.
Test was stopped after eight hours. Although
non-instrumented, our agreement was 100%. Objectivity was maintained by our writing separate observations and comparing them only at the test's completion. We both agreed that as the hours progressed, choosing between the Opalec and the Attitude was complicated by the Opalec's different color temperature. This added to the fact of non-instrumentation makes these results far from definitive.
I hope they may prove helpful despite their limitations.
Brightnorm
