Beginner's Guide to Variable Aperture Lenses | Ask David Bergman

Today's question from Aditya S. is, "I have a Nikon 18-55mm DX lens that has 3.5-5.6 inscribed on it. The max aperture seems to be 3.5 at 18mm and 5.6 at 55mm. Why is that and how does this work? Thank you!"

Exposure Triangle Videos:
Shutter Speed -    • Shutter Speed Basics | Ask David Bergman  
Aperture -    • Aperture Basics | Ask David Bergman  
ISO -    • ISO Basics | Ask David Bergman  

You might also be wondering: "What is the point in variable aperture lenses?" "What is a variable aperture lens?" - David answers those questions in this video!

Go to http://www.AskDavidBergman.com to submit your own photo question, see David's gear list, and view the episode archive.

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Canon Explorer of Light David Bergman is a NYC-based tour photographer and educator with more than 30 years of experience. Currently the official tour photographer for Luke Combs, he has also traveled the world with artists including Bon Jovi, Barenaked Ladies, and Sarah McLachlan. As a sports photographer, he covered numerous Olympics, Super Bowls, and World Series games and has 13 Sports Illustrated covers to his credit. A passionate public speaker and photo educator, Bergman produces the bi-weekly show "Ask David Bergman" on the Adorama YouTube channel and hosts his unique "Shoot From the Pit" live concert photography workshops.

Timestamps and Chapters
00:00 Intro
00:31 Italy Trip Announcement
00:57 Aditya’s Question
01:29 Understanding Aperture
02:09 Prime vs. Zoom Lenses
03:33 Fixed vs. Variable Aperture Lenses
03:58 Examples of Canon 24-105mm Variable Aperture Lenses
05:04 What are the advantages of variable aperture lenses?
05:29 Dealing with Changing Aperture
05:47 Automatic Exposure Mode
06:13 Manual Exposure Adjustment
07:18 Canon Camera Settings for Same Exposure for New Aperture
08:34 Conclusion
08:51 Outro

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✘ GEAR USED:

Canon RF 50mm f/1.2L USM Lens
https://www.adorama.com/car5012.html?...

Canon EF 50mm f/1.4 USM Lens
https://www.adorama.com/ca5014afu.htm...

Canon RF 24-105mm f/2.8L IS USM Lens
https://www.adorama.com/car2410528.ht...

Canon RF 24-105mm f/4 L IS USM Lens
https://www.adorama.com/car241054.htm...

Canon RF 24-105mm f/4-7.1 IS STM Lens
https://www.adorama.com/car24105.html...

Canon RF 24-240mm f/4-6.3 IS USM Lens
https://www.adorama.com/car24240.html...

Canon R3 Mirrorless Camera Body
https://www.adorama.com/car3.html?kbi...

Canon EOS R5 Mirrorless Digital Camera Body
https://www.adorama.com/car5.html?kbi...

✘ PRODUCTION EQUIPMENT USED:

Canon EOS R Mirrorless Full Frame Digital Camera Body
https://www.adorama.com/car.html?kbid...

Canon RF 24mm f/1.8 Macro IS STM Lens
https://www.adorama.com/car2418.html?...

Manfrotto MT055XPRO3 Black Aluminum Tripod with MVH502AH Pro Video Head
https://www.adorama.com/bg055xprob52....

CLAR Illumi Max 500 High Power 5600K LED Light
https://www.adorama.com/clilmax500sl....

Glow EZ Lock Octa Quick XL Softbox With Bowens Mount (48")
https://www.adorama.com/glsbez48octa....

Prograde cards and readers
https://adorama.rfvk.net/jrL7KZ

#variableaperturelens #aperture #adorama

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Get more information about David's #shootfromthepit live concert photography workshops
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One-on-One consultations with David:
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THANKS SO MUCH FOR WATCHING!