Mu-43 Top Veteran
- Jun 15, 2016
Does this (either 5E or F) affect minimum/maximum focusing distance? Meaning, how close do you need to be and how far can you be, and compared to a normal macro lens?
Definitely. You'll have near zero working room with reversed lens.
it relies on focal length, and distance to the sensor.
basically, you work with magnification - your magnification depending on a different distance to your subject, you get different magnification ratio. so if you want to work at a max magnification of 1:2 with 60mm f2.8, you still have to work at 10cm distance, or so.
I wouldn´t call it "zero working room" - yes, reversed primes have just 1 magnification, and as result only 1 focusing distance. but that what you would expect if you want to shoot at a specific magnification.
as Petrochemist mentioned helicoids, are kinda workaround. with moving the lens further away you change magnification, therefore the focusing distance.
another tool of changing magnification are doubler and speed boosters.
i usually get working distance between 10-25cm, with magnifications between 3:1 and 1:2, so i wouldn´t say it that much unpractical even for living subjects.
that guy barely exceeds 3mm in the length and 2mm in the height. so you can count magnification by yourself. i do not crop.