SF P90

3

3mw

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Aug 11, 2006
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I recently purchased a SF G3 and I'm not very impressed with the football shaped pattern from the P90 lamp. Is this normal or did I receive a defective lamp? Thanks
 
A

ampdude

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Sounds normal, but can't tell for sure without a beamshot.

I've heard they started frosting the P90's now, though I've not seen one. I think that's unfortunate, but alot of people don't like the beam pattern of the P90. Personally I think it's fine and prefer the unfrosted bulbs for real world use.

Is yours frosted or not?
 
K

kakster

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They are oval, even the ones with a frosted tip.
 
B

brunt_sp

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I've fitted mine with a LF EO-9. It's better I think.
 
lightemup

lightemup

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If you look down to this thread just below yours at the moment:

" Anyone with a SF M4 have a beam shape that looks like a football?"

There are already a few answers.

In short: the oval is how they are meant to be. Size15 has said it is related to the filament being a 'bar' instead of a 'dot.' Size15 also said that this arrangement is used to maximise the effectiveness of the reflector/bulb combination.

When white wall hunting it is noticeable, but imho when i'm actually using the light it is not noticeable.
 
W

willrx

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I recently purchased a SF G3 and I'm not very impressed with the football shaped pattern from the P90 lamp. Is this normal or did I receive a defective lamp? Thanks

I felt the same way until I learned that was the way it was designed to perform. My solution was 2x17500 and an LF EO-9. Mine doesn't get much use so the 17500's don't get beaten too badly.
 
J

JNewell

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What some of the posts above mean is that, depending on what you're using it for, the oval-like beam can be an advantage. Depends...YMMV...the LF replacement lamps are really, really nice.
 
Outdoors Fanatic

Outdoors Fanatic

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I recently purchased a SF G3 and I'm not very impressed with the football shaped pattern from the P90 lamp. Is this normal or did I receive a defective lamp? Thanks
There is a pretty efficient medicine for this problem: Lumens Factory lamp assemblies.
 
mdocod

mdocod

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like others are saying, if the beam shape is really bothering you, stick the P90 in your spares box and switch to a LF lamp, SR-9 will be an almost direct replacement for brightness and runtime but should have a slightly "prettier" beam.
 
3

3mw

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Aug 11, 2006
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Sounds normal, but can't tell for sure without a beamshot.

I've heard they started frosting the P90's now, though I've not seen one. I think that's unfortunate, but alot of people don't like the beam pattern of the P90. Personally I think it's fine and prefer the unfrosted bulbs for real world use.

Is yours frosted or not?


Yes, the tip is frosted.
 

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