photo:mft135-150mm

wide aperture telephoto in 135-150mm range for Micro Four Thirds

introduction

  • the best current lens with the fastest AF and wide aperture in the 135-150mm range focal length currently is the Olympus mZD 40-150mm f/2.8 pro lens which will give 150mm f/2.8 with high optical quality and weatherproofing
  • if you can't afford this, there are a few other options but all with major compromises

Olympus mZD 40-150mm f/2.8 Pro

  • very sharp lens wide open
  • the problems are:
    • pity the zoom doesn't get to 200mm
    • relatively expensive (~$US1500)
  • advantages:
    • only 760g w/o tripod mount
    • does not extend on zooming
    • close focus 0.7m
    • high optical quality
    • CDAF compatible for face detection and Live View AF and new dual linear voice coil motors for focusing
    • gives good depth of field (DOF) control
    • has tripod mount
    • nice bokeh
    • not too big (72mm filter)
    • can be used with Olympus mZD tele-extender (MC-14 1.4x)
    • freeze-proof
    • manual focus clutch mechanism
    • L-Fn button
    • weatherproof

Olympus ZD 50-200mm f/2.8-3.5 SWD for Four Thirds

  • AF will be stutteringly slow on most bodies, although the E-M1 will allow faster phase detect AF
  • very sharp lens wide open
  • at 135mm, the widest aperture is f/3.3
  • the problems are:
    • slow AF
    • big, heavy lens (1.07kg), and almost absurdly long when extended even to 135mm focal length when the hood is in place (10.5cm longer than the Canon EF 135mm f/2.0L lens with its lens hood)
    • f/3.3 means depth of field (DOF) control is a little more limited
    • requires four-Thirds adapter
  • advantages:
    • gives best telephoto range
    • close focus 1.2m
    • has tripod mount
    • nice bokeh for a zoom lens
    • can be bought at reasonable prices 2nd hand
    • can be used with Olympus ZD tele-extenders (EC-14 and EC20)
    • weatherproof

Olympus ZD 150mm f/2.0

  • a beautiful lens BUT AF will be stutteringly slow on most bodies, although the E-M1 will allow faster phase detect AF
  • very sharp lens wide open
  • the problems are:
    • slow AF
    • still expensive (>$A3000 new perhaps $A1700 2nd hand)
    • very heavy (1.6kg, 82mm filter)
      • for some reason it is substantially heavier than a Canon EF 300mm f/4L IS lens which gives the same field of view and DOF on a full frame dSLR and weighs only 1190g and uses a 77mm filter but the 300mm lens is much longer at 221mm
      • it has two big advantages over the Canon 300mm lens:
        • it can be used with a 2x TC and still have AF and an aperture of f/4 instead of f/8
        • it can be used hand held thanks to the wider aperture and the more effective IS of the E-M1 camera
    • close focus 1.4m
    • requires four-Thirds adapter
  • advantages:
    • gives best depth of field (DOF) control
    • has tripod mount
    • nice bokeh
    • not too big
    • can be used with Olympus ZD tele-extenders (EC-14 and EC20)
    • weatherproof

Canon EF 135mm f/2.0L

  • a full frame lens
  • very sharp lens wide open - almost as sharp as the Olympus ZD 50-200mm wide open at same focal length
  • can be hand held on the Olympus OM-D E-M5 camera with IS on and set to 135mm, at 1/250th second with minimal loss of sharpness compared to tripod use, but sharpness will very much depend upon accurate manual focus as DOF is shallow
  • the problems are:
    • no AF on MFT, must use magnified MF or other MF assist
    • no aperture control, thus at 2.5m you only get about 4cm DOF!
    • subject to internal flare
    • NOT weathersealed!
    • requires EF to micro-four-thirds adapter
  • advantages:
    • gives very shallow depth of field (DOF) but no ability to increase it
    • nice bokeh
    • close focus 0.9m
    • not too big nor heavy (750g, 72mm filter)
    • weatherproof
    • not too expensive
    • can be used with Canon EF tele-extenders
    • can be used with a Metabones Speed Booster adapter to give aperture control and reduce down to 96mm f/1.4
    • can obviously work as an AF lens on Canon EOS cameras

Olympus OM 135mm f/2.8

  • when compact size trumps AF
  • only 360g and 80mm long, 55mm filter
  • will need OM-MFT adapter
  • built-in lens hood
  • best stopped down to f/4 to reduce purple fringing

comparison chart

Olympus mZD 40-150mm PRO Olympus ZD 50-200mm SWD Olympus ZD 150mm f/2.0 Super Pro Canon EF 135mm f/2.0L
focal length range 40-150mm 50-200mm 150mm 135mm
aperture at 135-150mm f/2.8 f/3.3 f/2.0 f/2.0
CDAF speed on MFT FAST slow slow MF only
close focus 0.7m 1.2m 1.4m 0.9m
flare resistance EXC V.GOOD V.GOOD POOR
weatherproof YES YES YES NO
filter 72mm 67mm 82mm 72mm
weight 760/880g 1070/1200g 1500/1610g 750g
length 160mm 157mm + adapter 150mm + adapter 135mm incl. adapter
price $US1500 $US1200 $US2300 $US1050
max. focal length with TC 200mm f/4 400mm f/7 300mm f/4 270mm f/4
photo/mft135-150mm.txt · Last modified: 2014/12/31 15:00 by gary1