EOS 7D 1.6 Crop Factor

Hi all

I am currently teaching myself photography and was wondering if anyone could let me know if the 1.6 crop factor of the sensor in the 7D affects the aperture and ISO as it affects the Focal length.

Many thanks

Short answer:
No.

Long answer:
No. Stop worrying about crop factor multipliers, and instead only consider: 1) The camera placement that gives you the perspective you want, and 2) The focal length that gives you the framing you want.


The "crop factor" is only relevant if you've been shooting full-frame all your life, and you already know exactly what field of view you'll get from a given focal length before you even pick up the camera, and you feel like you really have the urge to do some math before you start taking pictures.

No.

I agree with Nathan wholeheartedly.

As mentioned, the only thing it effects in any significant way, is the field of view you get when using lenses as compared to full frame. If you are learning now, you are unburdened by the 35mm film reference point, so your lenses will behave only like you use them on your camera and that's it.

exposure calculations are not effected (shutter speed, aperture, ISO and light)

Enjoy your 7D!

I work in 4 camera formats...4x5, 645, 135, and APS-C...and I never us crop factor multipliers to determine what lens to choose for what FOV for any format. It comes naturally and automatically.

The crop factor arithmetic only came about because there was multiple generations of photographers with experience in 135 format, who suddenly needed to consider "What lens from my film camera do I use with my smaller format dSLR, and achieve same AOV?" when they first started in digital. So crop factor arithmetic allowed a photographer to think, "I like to use 28mm on my film camera for this shot, so I will use (28/1.6) or 18mm with my new dSLR for same AOV" for a while as a mental crutch.