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Wide beam or narrow beam light for spearfishing?

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Iristuo

New Member
Sep 23, 2020
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Using dive lights for spearfishing, does the beam angle have different effect on spearfishing? I know the wide beam can let me see more of immediate area, while the narrow beam light can focus on specific areas intensively. Should I choose wide or narrow beam? Besides, water visibility is also taken into consideration. If I hunt fishes in muddy water or clear water, are there different demands for dive lights’ beam? I hope my torch can be used in both muddy water and clear water. LOL. Thanks for your help! ;)
 

Leander

Well-Known Member
Oct 17, 2017
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For muddy water you need a very tight beam. Imagine car lights in the fog. It's the same idea.

Do check btw if using a light when spearfishing is legal in your area. Here in Greece for example it is not (although most do it anyway, the bastards!). Also check with yourself if you are ok with shooting a fish in its home, although by posting this question I assume you are.
 

DiveHacker

Active Member
Jun 17, 2020
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For muddy water you need a very tight beam. Imagine car lights in the fog. It's the same idea.

Do check btw if using a light when spearfishing is legal in your area. Here in Greece for example it is not (although most do it anyway, the bastards!). Also check with yourself if you are ok with shooting a fish in its home, although by posting this question I assume you are.
I believe you but it astonishes me all those guys show themselves on youtube using a light. One Greek guy I follow even had a video about an "illegal spearfisherman" who was using scuba.
 

Leander

Well-Known Member
Oct 17, 2017
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I believe you but it astonishes me all those guys show themselves on youtube using a light. One Greek guy I follow even had a video about an "illegal spearfisherman" who was using scuba.
I've seen people come out of the water with a mesh bag full of 150g octopus too, min size is 500g. People here often make their own rules as enforcement is lacking tremendously. Laws are seen more as guidelines than as something carved in stone, which I like, but sadly this freedom is misused a lot.
 
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Spearito

Member
Sep 19, 2019
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Hey buddy!
1- dirty water full of sediment would require a narrower beam. A beam that is too narrow in very dirty water will simply make it impossible to see the target, as you will be dazzled by the reflection of the light on the sediment.
2- check if it’s legal in your fishing destination, personally I believe that diving with a torch is like stealing candy from children.
3- in my opinion the temperature color (kelvin) of the light is way more important than the beam itself. Water absorbs the red part of the light spectrum in a few meters, so most organisms evolved to see white and blue light. Using a kelvin temperature on the red-ish part of the spectrum will spook fish fat less, but at the same time, it will be harder for you to see them! So it’s a compromise
 
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Iristuo

New Member
Sep 23, 2020
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Hey buddy!
1- dirty water full of sediment would require a narrower beam. A beam that is too narrow in very dirty water will simply make it impossible to see the target, as you will be dazzled by the reflection of the light on the sediment.
2- check if it’s legal in your fishing destination, personally I believe that diving with a torch is like stealing candy from children.
3- in my opinion the temperature color (kelvin) of the light is way more important than the beam itself. Water absorbs the red part of the light spectrum in a few meters, so most organisms evolved to see white and blue light. Using a kelvin temperature on the red-ish part of the spectrum will spook fish fat less, but at the same time, it will be harder for you to see them! So it’s a compromise
Got it! Thanks for your kind explanation. :giggle:
 
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