Quote Originally Posted by jamsus View Post
Can I make an observation about a point?

"One thing I never realized was on a crop, if you're using a 1.4 lens it's actually 2.24."

That is not correct. The f aperture of a lens doesn't change with the sensor.

If I use a f1.4 lens in a scenery that resolves a 1\1000 - 100 ISO - f 1.4 on a FF Camera on my APS-C Camera the numbers are still the same, i found this concept a bit confusing on internet sometimes.

If i take a picture and i crop it, the light remains the same.

The DoF changes because of the "circle of confusion" (i dont know how do you call it in English sorry!) calculated via Focal Range \ Lens Aperture \ Distance from Subject \ Sensor Size.




Edited after a "terminology" check

I've read several articles on this and this video goes over it as well, it makes sense but could be wrong: https://www.youtube.com/watch?v=f5zN6NVx-hY

peety3: It was a typo, I meant version 3 of the 85 1.2.

Basically what I'm trying to do is get some good portrait lenses. My 100 Macro is good but I really want a good 50 1.2 lens from Canon. I could go with the 85 1.2 II but it is a little slow on the AF side. I may have to rent the 24-70 2.8 II lens for portrait use. I found that I do use the extra reach for my landscapes. I found that the majority of the focal length for the 24-105 is at 24-35 and 85-105.