Axis ANVE Exam - Topic 5 Question 100 Discussion

Actual exam question for Axis's ANVE exam

Question #: 100
Topic #: 5

When using an external IR illuminator, what can happen if the beam angle is significantly narrower than the field of view?

AFocus must be set manually

BHeat can distort the image

CThe exposure may be uneven

DThe backlight can increase

Show Suggested Answer

Suggested Answer: C

When using an external IR illuminator with a beam angle significantly narrower than the field of view, the exposure may be uneven. This can result in parts of the image being overexposed (too bright) while other parts remain underexposed (too dark). Ensuring that the beam angle of the IR illuminator matches the field of view of the camera is essential for achieving uniform illumination across the entire surveillance area. Reference: Axis Communications IR Illumination Guide

by Laura at Sep 13, 2024, 08:16 PM

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Maxima

7 months ago

I've heard heat can mess with the image quality.

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Sean

7 months ago

Focus must be set manually too, right?

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Daniel

7 months ago

Wait, are you sure about that?

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Zena

7 months ago

Totally agree, that makes sense!

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Dannette

8 months ago

The exposure may be uneven.

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Tina

8 months ago

I definitely remember that if the beam angle is too narrow, it can lead to uneven lighting in the field of view.

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Joanna

8 months ago

I feel like I read that a narrower beam could cause issues, but I can't recall if it was about heat distortion or exposure.

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Ming

8 months ago

I think I came across a similar question in practice, and I want to say it was about uneven exposure too. That seems to make sense.

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Dahlia

8 months ago

I remember something about beam angles and how they can affect exposure, but I'm not sure if it's uneven exposure or something else.

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Vincent

8 months ago

I feel good about this one. The narrower beam angle will cause an uneven exposure, so C is the right answer.

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Bambi

8 months ago

Okay, I've got it. If the beam angle is narrower, the exposure will be uneven across the field of view. That's the key thing to remember here.

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Adelle

8 months ago

I'm pretty sure the answer is C - the exposure may be uneven. That makes sense if the beam angle is narrower than the field of view.

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Antione

8 months ago

Hmm, this one seems tricky. I'll need to think it through carefully.

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Cora

8 months ago

Wait, I'm a bit confused. Could the heat also distort the image? I'm not 100% sure on that one.

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Luis

9 months ago

I think this might be similar to the concept of trustless transactions we practiced. Not sure how it all connects though.

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Alethea

2 years ago

Wait, is the IR illuminator secretly a heat lamp in disguise? B is the hottest pick for sure!

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Hayley

2 years ago

The backlight increasing? What is this, a disco party? D is clearly the wrong answer.

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Jerry

2 years ago

B) Heat can distort the image

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Emelda

2 years ago

C) The exposure may be uneven

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Janet

2 years ago

A) Focus must be set manually

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Tish

2 years ago

Hmm, if the beam is too focused, I wonder if you'd have to manually adjust the focus. A could be the right choice here.

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Pura

2 years ago

Ooh, I bet the heat from the narrower beam would totally distort the image! B seems like the way to go.

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Tiera

2 years ago

It's important to consider the beam angle to avoid any distortion in the image.

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Dorathy

2 years ago

I agree, B seems like the best option in this case.

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Donte

2 years ago

I think you're right, heat can definitely distort the image.

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Leah

2 years ago

I believe the correct answer is C) The exposure may be uneven because the light won't cover the entire field of view.

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Dorthy

2 years ago

I agree with Dulce, a narrow beam angle can cause uneven exposure.

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Gennie

2 years ago

If the beam angle is narrower than the field of view, the exposure will definitely be uneven. C is the correct answer.

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Stevie

2 years ago

C) The exposure may be uneven

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Nana

2 years ago

B) Heat can distort the image

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Nikita

2 years ago

A) Focus must be set manually

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Dulce

2 years ago

I think if the beam angle is narrower, the exposure may be uneven.

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