Interestingly, the 35mm F1.4 below at F2.0 still has more blur in the background than the Fuji 23mm F23 at F1.4 As the focal length increases we see an obvious increase in compression and background blur.

1on 1 cams-25

Without even touching the merits of different sized sensors or even the size, weight and cost of the respective lenses, this mini-comparison is designed to simply compare how using different equivalent focal lengths on different systems affects the images themselves (because that’s what really matters! Since I don’t have many camera systems available to me, this comparison will compare my Canon lenses on full frame with my Fuji X-E2 with its APS-C (1.5x) cropped sensor.

Fuji 23mm F1.4 Equivalent of 34.5mm F2.1 on full frame compared with Sigma 35mm F1.4 on Canon 5D Mark III Fuji 35mm F1.4 Equivalent of 52.5mm F2.1on full frame compared with Canon 50mm F1.4 on Canon 5D Mark III Fuji 18-55mm F2.8-4.0 Equivalent of 27-82.5mm F4.2 – 6.0 Lighting in these comparisons comes from both natural and Cheetah CL-360 lights.

This is good and bad and depends on your requirements.

If you base your entire style on blurry back-ground photos, full frame sensors are probably your best choice.

This means that the smaller the sensor, the broader the depth of field at a given aperture.

Simply put, the bigger the sensor, the more blurred the back ground gets at the same aperture, and the easier it is to mis-focus.

The nice part is that you actually get some great blurring with the cropped sensor so the apparent advantage of the full frame sensor is decreased.

The image below taken with studio lights and a blown out back drop.

A lot of people (as in photographers that I know) have been talking about replacing or augmenting their current DSLR systems with mirrorless systems.