Macro Extension Tube Calculator

Lens Focal Length (in millimeters) Minimum Focus Distance (in centimeters) Magnification at M.F.D. (as documented, e.g. 0.25 or 1:4) Maximum Lens Aperture (third stops) —— f/1 f/1.1 f/1.2 f/1.4 f/1.6 f/1.8 f/2 f/2.2 f/2.5 f/2.8 f/3.3 f/3.5 f/4 f/4.5 f/5 f/5.6 f/6.3 f/7.1 f/8 Minimum Lens Aperture (third stops) —— f/8 f/9 f/10 f/11 f/13 f/14 f/16 f/18 f/20 f/22 f/25 f/29 f/32 f/36 f/40 f/45 f/51 f/57 f/64 f/72 f/81 f/91 Macro Extender Set (select manufacturer) Canon (12,25) ×3 Kenko (12+20+36) ×1 Nikon (8,14,27.7) ×1 Pro Optic (13,21,31) ×1 Canon MP-E 65 Camera (select model) —— Canon 1D Canon 1D Mark II Canon 1D Mark III Canon 1D Mark IIN Canon 1D Mark IV Canon 1Ds Canon 1Ds Mark II Canon 1Ds Mark III Canon 5D Canon 5D Mark II Canon 7D Canon 10D Canon 20D Canon 30D Canon 40D Canon 50D Canon 60D Canon 300D Canon 350D Canon 400D Canon 450D Canon 500D Canon 550D Canon 1000D Canon D30 Canon D60 Canon D2000 Canon D6000 Canon DCS 1 Canon DCS 3 Fuji S1 Pro Fuji S2 Pro Fuji S3 Pro Fuji S5 Pro Leica Digilux 3 Leica M8 Leica M9 Leica S2 Mamiya DM22 Mamiya DM28 Mamiya ZD Mamiya ZDb Minolta 5D Minolta 7D Nikon D1 Nikon D1H Nikon D1X Nikon D2H Nikon D2Hs Nikon D2X Nikon D2Xs Nikon D3 Nikon D3s Nikon D3x Nikon D40 Nikon D40x Nikon D50 Nikon D60 Nikon D70 Nikon D70s Nikon D80 Nikon D90 Nikon D100 Nikon D200 Nikon D300 Nikon D300s Nikon D700 Nikon D3000 Nikon D3100 Nikon D5000 Olympus E-1 Olympus E-3 Olympus E-30 Olympus E-300 Olympus E-330 Olympus E-400 Olympus E-410 Olympus E-420 Olympus E-450 Olympus E-500 Olympus E-510 Olympus E-620 Olympus E-P1 Olympus E-P2 Olympus E-PL1 Panasonic G1 Panasonic G2 Panasonic G10 Panasonic GF1 Panasonic GH1 Panasonic L1 Panasonic L10 Pentax 645D Pentax *ist D Pentax *ist DS Pentax K7 Pentax K10D Pentax K20D Pentax K100D Pentax K110D Pentax K200D Pentax K2000D Pentax Kx Phase 1 P45 Samsung NX5 Sigma SD9 Sigma SD10 Sigma SD14 Sony Alpha 100 Sony Alpha 200 Sony Alpha 230 Sony Alpha 330 Sony Alpha 350 Sony Alpha 380 Sony Alpha 500 Sony Alpha 550 Sony Alpha 560 Sony Alpha 580 Sony Alpha 700 Sony Alpha 850 Sony Alpha 900 Sony SLT-A33 Sony SLT-A55 Output Size (select size of print) —— 4x6 4x6 crop 5x7 5x7 crop 8x10 8x10 crop 8x12 8x12 crop 11x14 11x14 crop 12x18 12x18 crop 14x20 14x20 crop 16x24 16x24 crop 20x30 20x30 crop 24x36 24x36 crop A0 A0 crop A1 A1 crop A2 A2 crop A3 A3+ A3 crop A3+ crop A4 A4 crop A5 A5 crop A6 A6 crop HDTV 1280x720 HDTV 1280x720 crop HDTV 1366x768 HDTV 1366x768 crop HDTV 1920x1080 HDTV 1920x1080 crop Web 320x240 Web 320x240 crop Web 640x480 Web 640x480 crop Web 800x600 Web 800x600 crop Web 1024x768 Web 1024x768 crop W: x H: Crop Metric? (uncheck for feet and inches)