Re: Clarification & Corrections on the Upcoming New Lenses from Canon [CR2]
Effective aperture and effective focal length all change once you get close - just how depends on lens design, as well as distance.
Auto exposure and tilt/shift don't work well together - I shoot macro and tilt/shift fully manually for all the stuff I do (industrial macro and architecture are both parts of my 'day job')
Add in flash heads, and they are all set manually too - in this area, 'auto' just becomes too unpredictable
Macro -and- T/S ? No way would I be using auto anything ;-)
At the same magnification, the working distance changes with focal length, and as such the perspective changes too - just like at 'normal' scales.Hector1970 said:What would the three different lens be useful for in terms of macro. Would the they have different uses? What would be advantage of 50mm over 90mm or 135mm. Does a 135mm give you a bigger practical magnification? Is it just a focal length thing i.e. A wider field of view at 50mm. Would a 50mm have a shorter focussing distance?
How better than a 100mm macro would these be. Would I get an equivalent say F22 depth of field at F2.8.
Will exposure fool the camera like it does when shift or tilt one of the current TS-E lens (I use the 24mm TS-E currently)
Effective aperture and effective focal length all change once you get close - just how depends on lens design, as well as distance.
Auto exposure and tilt/shift don't work well together - I shoot macro and tilt/shift fully manually for all the stuff I do (industrial macro and architecture are both parts of my 'day job')
Add in flash heads, and they are all set manually too - in this area, 'auto' just becomes too unpredictable
Macro -and- T/S ? No way would I be using auto anything ;-)
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