rfdesigner said:abcde12345 said:Luds34 said:rfdesigner said:3. Get an Eg-S focus screen (but only use F2.8 or wider lenses thereafter).. then you could manually focus at any point in the field of view.
+1 While the focus screen is quite helpful for manually focusing, I really like it as more of a focus confirmation when shooting. If the focus misses almost at all, I can see it with the viewfinder.
This sounds interesting. What's a Eg-S focus screen and is it easy to use on the run?
It scatters light more which means you get the benefit of the whole light cone from fast lenses, this makes the viewfinder brighter (a little) and gives you accurate DoF.
However it also means that slow lenses lose out as that same scatter reduces their light compared to the slightly see through Eg-A screen your camera came with.
http://www.bhphotovideo.com/c/product/590458-REG/Canon_3357B001_Eg_S_Super_Precision_Matte.html
Changing the screen on the fly is not a good idea.. if you use slow and fast lenses and you really really want this then either put up with a darker viewfinder on slow lenses or get a second body.
Thankfully almost all my lenses are pretty fast (mostly primes). However I do have a 17-40 f/4L and the Tamron 150-600. I just put up with the darker screen.
I recommend the focus screen for anyone who is shooting fast glass, narrow DOF. It definitely is an added tool helping give that confirmation that the shot is in focus. I'm sure many others can manual focus better then I, however I've been pretty impressed with being able to nail focus even at f/1.4. Of course I rack back and forth a tiny bit at that point point of exact focus, looking to see what is the "most clear". Kind of at an eye doctor "A or B? Which is clearer?". My only regret was owning the 6D for nearly a year before swapping out the focus screen.
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