Aperture

This is a quick and simple introduction to Apertures and the four main rules of apertures. I hope beginning photographers find it helpful! :) Brought to you by: http://www.michaelthemaven.com

Category:

Education

Tags:

• Aperture
• Photography
• Lessons
• Digitial
• Cameras
• Canon
• Nikon
• 40D
• SLR
• Exposure
• Shutter
• Speed
• Depth
• of
• Field
• DOF

[kamihakai]

Hi, I know apertures control light entrance and depth of field, but, I want to know How the light rays enters through the lenses, are they in cone shape, and if so, I would think (but it's not true), that decreasing the aperture, would remove some light rays coming into the sensor, thus reducing the quantity of informarion at the border of the image... how does it works??

[MichaelTheMentor]

@kamihakai Its an excellent question, I should probably make a video about it. While total amount of light is indeed decreased, the coverage of the media is the same. (And yes it is cone shaped). Wider apertures allow for more light to enter the lens, but the coverage of the media is the same.

[tomislavhecimovic]

Did I got something wrong or did you?

Please check @ 2:17 I thought that aperture equals focal lenght divided with diameter of entrance size, not the iris diameter.

[MichaelTheMentor]

@tomislavhecimovic It is the opening that allows light in depending on what type of equipment you are using, if it was the diameter of the lens entrance, aperture would never change.

[MichaelTheMentor]

Have you updated the firmware? If you are in Manual Exposure, this should not be happening. Also, check your ISO that it is not on "auto".

[MichaelTheMentor]

Ill have a DVD coming out on this in about 3-4 weeks. Best wishes! M

[jayjaySTAR718]

This video really helped. thank you.

[JohnPersonage]

Great video Mike... but I think you need to turn the volume up. I'm on max here and struggling to hear you.

[lastseries2011]

Coincidentally im using earphone to watch this. :)

[jayorn]

How come i'll always turn deaf when i watch this video

[jayorn]

How come i'll always turn deaf when i watch this video

[kalzorath]

@jellywillreturn i was gonna make that reference. I want you gone dammit! lol

[jellywillreturn]

This was a triumph! I mean... thanks for the camera tips.

[tinareddy46]

struggling to hear you!!! turn the volume up!!

[airbendingavatar1]

@gavlemab Portal nerd and proud of it! :D

[gavlemab]

@airbendingavatar1 :D portal nerd :D