18mm (18-55mm)
f/5.6 - 1/125 secs. - ISO 400
55mm (18-55mm)
Still-Life :
On the first image, where the focal length is 18mm, there is more background than on 55mm one. We see a big difference of distortion from one image to another, because of its focal length.
On the first image, where the focal length is 18mm, there is more background than on 55mm one. We see a big difference of distortion from one image to another, because of its focal length.
f/3.5 - 1/60 secs. - ISO 800
18mm (18-55mm)
f/1.8 - 1/60 secs - ISO 400
50mm
Portrait :
Portrait :
From the 18mm to the 50mm, we see a huge distortion. On the first image, there is more background and the faces look more distorted than on the second one. The depth-of-field changes as well from one image to another because of my aperture, but also because of my focal length.
f/16 - 1/60 secs. - ISO 3200
70mm (70-200mm)
f/2.8 - 1/80 secs. - ISO 800
70mm (70-200mm)
f/2.8 - 1/160 secs. - ISO 800
105mm (70-200mm)
f/2.8 - 1/100 - ISO 800
135mm (70-200mm)
70mm (70-200mm)
f/16 - 1/30 secs. - ISO 3200
105mm (70-200mm)
f/16 - 1/30 - ISO 3200
135mm (70-200mm)
Part 2 : Focal Length and Depth-of-Field
Part 2 : Focal Length and Depth-of-Field
For these images, I had to change lens because my 18-55mm f3.5-5.6 didn't show any big difference from a wide to small aperture. We see a huge difference of depth-of-field from the f/2.8 and f/16, the background is much blurrier on the f/2.8 shots.
f/8 - 1/30 secs - ISO 100
55mm (18-55mm)
f/11 - 1/15 secs. - ISO 100
55mm (18-55mm)
f/4 - 1/125 secs. - ISO 100
18mm (18-55mm)
f/5.6 - 1/80 secs. - ISO 100
18mm (18-55mm)
f/8 - 1/40 - ISO 100
18mm (18-55mm)
f/11 - 1/20 secs. - ISO 100
18mm (18-55mm)
f/16 - 1/10 secs. - ISO 100
18mm (18-55mm)
f/22 - 1/5 secs. - ISO 100
18mm (18-55mm)
f/5.6 - 1/80 secs. - ISO 100
30mm (18-55mm)
f/8 - 1/40 secs. - ISO 100
30mm (18-55mm)
f/11 - 1/20 secs. - ISO 100
30mm (18-55mm)
f/16 - 1/10 secs - ISO 100
30mm (18-55mm)
f/22 - 1/5 secs - ISO 100
30mm (18-55mm)
f/5.6 - 1/50 secs - ISO 100
55mm (18-55mm)
55mm (18-55mm)
55mm (18-55mm)
f/16 - 1/8 secs. - ISO 100
55mm (18-55mm)
f/22 - 1/4 secs. - ISO 100
55mm (18-55mm)
Part 3 : Test your lens
Everything went pretty well for this part, the only difficulty I got was because of the different focal lengths I had to use. I had to get closer or further away from the target, it wasn't much but sometimes it could be difficult. Also as of aperture speaking, as my f-stops got smaller (ex: f/22), the clearer everything got. I don't see a HUGE difference but the difference is still there.
Everything went pretty well for this part, the only difficulty I got was because of the different focal lengths I had to use. I had to get closer or further away from the target, it wasn't much but sometimes it could be difficult. Also as of aperture speaking, as my f-stops got smaller (ex: f/22), the clearer everything got. I don't see a HUGE difference but the difference is still there.
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