Your headshot is your business card.

How does it look?

1. A selfie on a smartphone looks like your name written by a pen on a piece of paper.
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Budget: - (well, you need a camera anyway)
OBTS (Odds of Being Taken Seriously ): -10/10

2. A selfie on a semi-pro camera with no special lighting looks like a card typed in Word, printed on an A4 sheet, and cut with scissors into a few cards.
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Budget: $
OBTS: -5/10

3. A studio-like selfie taken with a pro camera looks like a card made in Photoshop, and printed in a lab on simple white paper.
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Budget: $$
OBTS: 2/10

4. A portrait taken in the studio by a photographer looks like a card made in Photoshop by a designer, printed in a lab on good thick paper.
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Budget: $$$
OBTS: 5/10

5. A professional headshot that has been shot in the studio by a professional headshot photographer looks like a card made in Photoshop by a professional designer, and printed in a lab on expensive thick embossed paper.
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Budget: $$$$
OBTS: 10/10