p61 vs p90

recercare

Enlightened
Joined
Aug 29, 2001
Messages
330
Location
Norway
Whare are the differences between p61 and p90 considering overall brightness, peripheral light and beam angle?
 
Comparing the two lamps that I found first, at close range, the P90 has a less intense (white) but larger (more oval) beam compared to the P61 with it's more round, brilliant intense beam.

At medium range I noticed that both beams were about the same brightness although the ovalness of the P90 was evident.

At longer range, I noticed that the intensity and smaller beam of the P61 illuminated better then the flood of the P90.

I compared both in Pyrex Standard Bezels using fresh SF123As.

I expect the P90 will maintain it's output for far longer then the P61.

For three cell SureFires, I find that the MN10 and MN11 of the M3 are brighter and more intense but more oval compared to the P90 & P91. The HOLAs are more round in both sets of lamps I compared.

Al
 
Hummm, where did I put that....

p9vp6.jpg
 
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