Table of Contents

Medium Format is Dead and 135 Format Mirrorless is the Future

format fast lens on MF equiv. 135 format native 135 alternative
645 format Mamiya 645 80mm f1.9 50mm f1.2 50mm f0.95
645 format Hasselblad 110mm F2 75mm f1.3 Canon 85mm f1.2
645 format Mamiya 645 150mm/f2.8 100mm f1.8 Sigma 105mm f1.4
6×7 format Mamiya RZ 110mm f/2.8 55mm f1.4 50mm f0.95
6×7 format Mamiya RZ 150mm f2.5 75mm f1.2 Canon 85mm f1.2
6×9 format Mamiya Press 100mm f2.8 43mm f1.2 50mm f0.95
6×9 format Mamiya Press 150mm f/5.6 70mm f2.4 Canon 85mm f1.2

MF crop factor and focal length equivalent

relative Crop Factor = MF width / 36mm (135 film width)

Crop Factor = 1/ relative Crop Factor

(Note: 6 means 6cm in MF)

35mm 645 6×6 6×7 6×9 6×12 6×17 LF 6×24 LF 4×5“ 5×7” 8×10“
ActualfilmSize36×24 mm 56 x 42 mm56 x 56 mm56 x 72 mm56 x 84 mm56 x 112 mm56 x 168 mm 56 x 224 mm102×127 mm127 x 178mm20×25cm
size compare 1x 2.7x 3.6x 4.6x 5.4x 7.3x 11x 14.5x 15x 26x 58x
print size A3 A2 A2 A1 A1,A0 2xA2 3xA2 4xA2 2A0 4A0 8A0
135mm equivalent Angle of View
rCF1.5x1.5x 2x 2.3x 3.1x 4.6x 6.2x 3.5x 5x 7x
FL 645 6×6 6×7 6×9 6×12 6×17 6×24 4×5” 5×7“ 8×10”
28mm17mm
35mm21mm 11mm
40mm 25mm
43mm 22mm
45mm28mm 20mm14.5mm 13mm
50mm 32mm25mm
55mm35mm 18mm
65mm 33mm 28mm21mm 18mm
75mm50mm 50mm 24mm 21mm 15mm
80mm 41mm
90mm 45mm 35mm28mm 20mm14.5mm 25mm 18mm
110mm 50mm 24mm 16mm
120mm75mm 50mm 19mm 35mm 18mm
150mm95mm95mm75mm 33mm24mm 42mm 30mm 21mm

LF ref:

MF panorama ref (612,617,624):

MF ref:

120 film develop in SG

More shop at SG: http://www.lomography.com/more/photolabs/country/192-singapore

Some Fuji Kodak shop

120 Film price

120 film shot counts

645 6×6 6×7 6×9
16 12 10 8

120 Good color one:

120 B&W:

135 film

135 BW film:

Film and Airport check

645 vs 6x7 and large format

My interchangable MF preference: Mamiya RB67 > Hasselblad 500cm > Fuji GSW690 > Pentax 645 > Bronica ETRSi 645 > Mamiya 645 ProSD > Pentax 6×7 > Twin Lens Reflex cameras > Old fixed lens MF cameras

(AE prism finder > prism finder > waist level finder)

Medium Format brands and choice

Mamiya RB67, RZ67, Mamiya M645, AF645 and rangefinder 7 series

Pentax 645 and Pentax 6x7 type

Shanghai Seagull TLR and other 6x6 TLR

Fuji GW and GSW 6x7,6x8,6x9 rangefinder

Bronica, Pentacon 6, and other

hasselblad 6x6 system

instant film camera

Lomography camera

Autofocus and Digital Medium Format camera