From Lloyd Chambers (digllloyd) website where he tested the 50L with the 5D3 yesterday. This is just the headline:
\"Just published in Making Sharp Images is an extensive study of focus shift with the Canon 50mm f/1.2L on the Canon 5D Mark III.
This study is also cross-posted in DAP: study of focus shift with the Canon 50mm f/1.2L on the Canon 5D Mark III (in DAP).
Canon users shooting the Canon EF 50mm f/1.2L will find this study immensely instructive. The most common complaint about the 50/1.2L is that it is “soft”. This is absolutely incorrect (it is very sharp), but the culprit is a very strong focus shift. However, the “soft” statement is absolutely true if one fails to compensate for the focus shift.
For many lenses (especially ƒ/1.2, ƒ/1.4, ƒ/1.8 lenses), by far the most important lens parameter determining lens sharpness is focus shift. Which is why many controlled tests are completely ignoring the most important performance issue! A sort of 1.735 children thing, or being half pregnant. Know your gear.
Focus shift and what to do about it are discussed in detail in Making Sharp Images.
The shocking image sharpness differences caused by focus shift.
That the 50/1.2L is a very sharp lens, but “in the wrong place” unless one compensates for the focus shift.
That with increasing DSLR resolution, focus shift can be THE dominant factor in determining actual image sharpness.
Nikon and other brand photographers should take the time to read this study, as there are plenty of Nikon (and Zeiss and Leica) lenses with focus shift.
From Lloyd Chambers (digllloyd) website where he tested the 50L with the 5D3 yesterday. This is just the headline:
\"Just published in Making Sharp Images is an extensive study of focus shift with the Canon 50mm f/1.2L on the Canon 5D Mark III.
This study is also cross-posted in DAP: study of focus shift with the Canon 50mm f/1.2L on the Canon 5D Mark III (in DAP).
Canon users shooting the Canon EF 50mm f/1.2L will find this study immensely instructive. The most common complaint about the 50/1.2L is that it is “soft”. This is absolutely incorrect (it is very sharp), but the culprit is a very strong focus shift. However, the “soft” statement is absolutely true if one fails to compensate for the focus shift.
For many lenses (especially ƒ/1.2, ƒ/1.4, ƒ/1.8 lenses), by far the most important lens parameter determining lens sharpness is focus shift. Which is why many controlled tests are completely ignoring the most important performance issue! A sort of 1.735 children thing, or being half pregnant. Know your gear.
Focus shift and what to do about it are discussed in detail in Making Sharp Images.
Nikon and other brand photographers should take the time to read this study, as there are plenty of Nikon (and Zeiss and Leica) lenses with focus shift.
From Lloyd Chambers (digllloyd) website where he tested the 50L with the 5D3 yesterday. This is just the headline:
\"Just published in Making Sharp Images is an extensive study of focus shift with the Canon 50mm f/1.2L on the Canon 5D Mark III.
This study is also cross-posted in DAP: study of focus shift with the Canon 50mm f/1.2L on the Canon 5D Mark III (in DAP).
Canon users shooting the Canon EF 50mm f/1.2L will find this study immensely instructive. The most common complaint about the 50/1.2L is that it is “soft”. This is absolutely incorrect (it is very sharp), but the culprit is a very strong focus shift. However, the “soft” statement is absolutely true if one fails to compensate for the focus shift.
For many lenses (especially ƒ/1.2, ƒ/1.4, ƒ/1.8 lenses), by far the most important lens parameter determining lens sharpness is focus shift. Which is why many controlled tests are completely ignoring the most important performance issue! A sort of 1.735 children thing, or being half pregnant. Know your gear.
Focus shift and what to do about it are discussed in detail in Making Sharp Images.
Nikon and other brand photographers should take the time to read this study, as there are plenty of Nikon (and Zeiss and Leica) lenses with focus shift.
From Lloyd Chambers (digllloyd) website where he tested the 50L with the 5D3 yesterday. This is just the headline:
\"Just published in Making Sharp Images is an extensive study of focus shift with the Canon 50mm f/1.2L on the Canon 5D Mark III.
This study is also cross-posted in DAP: study of focus shift with the Canon 50mm f/1.2L on the Canon 5D Mark III (in DAP).
Canon users shooting the Canon EF 50mm f/1.2L will find this study immensely instructive. The most common complaint about the 50/1.2L is that it is “soft”. This is absolutely incorrect (it is very sharp), but the culprit is a very strong focus shift. However, the “soft” statement is absolutely true if one fails to compensate for the focus shift.
For many lenses (especially ƒ/1.2, ƒ/1.4, ƒ/1.8 lenses), by far the most important lens parameter determining lens sharpness is focus shift. Which is why many controlled tests are completely ignoring the most important performance issue! A sort of 1.735 children thing, or being half pregnant. Know your gear.
Focus shift and what to do about it are discussed in detail in Making Sharp Images.
Nikon and other brand photographers should take the time to read this study, as there are plenty of Nikon (and Zeiss and Leica) lenses with focus shift.
Jul 30, 2012 at 12:04 AM
Previous versions of Lars Johnsson's message #10843286 « 50L or 35L on a 5D Mark III »
