Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Large format intro====== * an intro on everything in LF : * http://www.clubsnap.com/forums/medium-format/1127594-so-you-want-lf.html * a forum : http://www.largeformatphotography.info/forum/forumdisplay.php?25-LF-Forums relative Crop Factor = MF width / 36mm (135 film width) Crop Factor = 1/ relative Crop Factor (Note: 6 means 6cm in MF, 4 means 4inch in LF) | |35mm ^645 ^ 6x6 ^ 6x7 ^ 6x9 ^ 6x12 ^ 6x17 LF ^ 6x24 LF | 4x5" | 5x7" | 8x10" | |ActualfilmSize|36×24 mm |56 x 42 mm|56 x 56 mm|56 x 72 mm|56 x 84 mm|56 x 112 mm|56 x 168 mm |56 x 224 mm|102×127 mm|127 x 178mm|20×25cm| |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 | ^ ^ 4x5" ^ 5x7" ^ 8x10" | 11x14" | 14x17" | 16x20" | 20x24" | 40x80" | |ActualfilmSize| 102×127 mm|127 x 178mm|20×25cm| 28x35cm| 35x43cm| 40x50cm|50x60cm | 100x200cm| |size compare | 15x |26x |58x | 113x | 174x | 231x | 347x | 2314x | |print size | 2A0 | 4A0 | 8A0 | 16A0 | 24A0 | 32A0 | 48A0 | 308A0 | | | 135mm equivalent Angle of View (at the long end width) ||||||||||| | rCF|1.5x|1.5x |2x | 2.3x| 3.1x | 4.6x| 6.2x | 3.5x | 5x | 7x | 9.7x | 12x | 13.9x | 16.7x | 55.6x | | FL ^645 ^ 6x6 ^ 6x7 ^ 6x9 ^ 6x12 | 6x17 | 6x24 | 4x5" | 5x7" | 8x10" | 11x14" | 14x17" | 16x20" | 20x24" | 40x80" | ^28mm|17mm| | | | | | | | | | | | | | | ^35mm|21mm| | | |11mm | | | | | | | | | | | |40mm| | 25mm| | | | | | | | | | | | | | |43mm| | |22mm | | | | | | | | | | | | | ^45mm|28mm| | | 20mm|14.5mm| | | 13mm | | | | | | | | |50mm| | 32mm|25mm | | | | | | | | | | | | | ^55mm|35mm| | | |18mm | | | | | | | | | | | |65mm| | |33mm | 28mm|21mm | | | 18mm | | | | | | | | ^75mm|50mm| 50mm| | |24mm | | | 21mm | 15mm | | | | | | | |80mm| | |41mm | | | | | | | | | | | | | |90mm| | |45mm | 35mm|28mm | 20mm|14.5mm | 25mm | 18mm | | | | | | | |110mm| | |50mm | | | 24mm| | | | 16mm | | | | | | ^120mm|75mm| | | 50mm| | |19mm | 35mm | | 18mm | | | | | | ^150mm|95mm|95mm|75mm | | | 33mm|24mm | 42mm | 30mm | 21mm | 15.5mm | | | | | ^200mm|135mm| |100mm| 85mm|65mm | 43mm|32mm | 55mm | 40mm | 28mm | 20mm | 16mm | 14mm | 12mm | | ^300mm|200mm| |150mm|135mm|95mm | 65mm|50mm | 85mm | 60mm | 43mm | 31mm | 25mm | 21mm | 18mm | | ^600mm|400mm| |300mm|270mm|190mm |130mm|100mm | 170mm| 120mm | 85mm | 60mm | 50mm | 43mm | 35mm | | ^800mm|500mm| |400mm|350mm|260mm |175mm|130mm | 220mm| 160mm | 112mm | 80mm | 65mm | 55mm | 45mm | 14mm | ^1000mm|675mm| |500mm|425mm|325mm|215mm|160mm | 285mm| 200mm | 140mm | 100mm | 80mm | 70mm | 60mm | 18mm | * 20x24 studio: * http://www.20x24studio.com/ * 70x70cm video: * use flash as shutter: http://www.youtube.com/watch?v=F70vzjIBdSY * Truck size, 400cm x 200cm camera: * http://www.youtube.com/watch?v=nC3Tu9JxI3g * http://www.cameratruck.net/Site/Landing.html ^Ti1| | | | | | | | | | | 8000| 4000| 2000| 1000| 500| 256^125| 60| 30| 15| 8| 4 |2 |1" |1.5"-2"-3" |4" |8" |15"|30" |1min |2m|4m|8m|15m|30m|1h|2h| ^ F| | | | | | | |0.7 | 1| 1.4| 2| 2.8| 4| 5.6| 8| 11^16| 22| 32| 45| 64| 90 |128 |181 ^206-256-288|362|512 |724 |1024 |1448|2048 | | ^ count| | | | | | | |1 | 2| 3| 4| 5| 6| 7| 8| 9^10| 11| 12| 13| 14|15 |16 |17 |18 |19 |20 |21 |22 | 23|24|25|26|27|28|29|30| ====== 4x5 film price ====== * Shanghai 4x5 25p iso 100: 15 sgd ====== Fast lens and DOF of Large Format ====== * [[http://www.flickr.com/photos/genotypewriter/6076860350/in/photostream/|Schneider Xenotar 150mm f/2.8, 4x5 & Schneider Xenar 480m/48cm f/4.5]], 8x10 & [[http://www.flickr.com/photos/genotypewriter/6076323375/in/photostream/|Aero Ektar 12"/307mm f/2.5, 8x10]] * [[http://www.flickr.com/photos/rawhead/4208124639/|Aodak Aero Ektar 178mm f2.5 5x5 large format lens]] * [[http://www.flickr.com/photos/rawhead/4236950965/|The lens on Speed Graphic 4x5]], [[http://www.flickr.com/photos/rawhead/4230038555/in/set-72157610768198629/|2]], [[http://www.flickr.com/photos/rawhead/6451530913/in/set-72157610768198629/|3]] on [[http://www.flickr.com/photos/rawhead/|Dr. RawheaD's photostream]] * [[http://www.flickr.com/photos/rawhead/4238090566/in/photostream/|sample image]] * equivalent 48mm FOV on 135 film camera * (almost 1/3 crop factor, 135 full frame DSLR is like M43 camera to 4x5 large format) * equivalent f0.7 DOF on 135 film camera ====== Manufacturers ====== * Chamonix View camera http://www.chamonixviewcamera.com/cameras.html photowiki/largeformat.txt Last modified: 2023/01/07 15:17by ying