one can also learn the same thing by experience. But please look it up for yourself. Conclusion 35mm Film. cheat sheets It comes and goes witho... What do you all do to scan your pictures and get them digitally? In all honesty this is a more realistic, true to real photography, test than my first, which is more theory than practical. Originally posted ages ago. It’s just really equivalent field of view using 35mm as a reference. No question that VOXPHOTO's post, taking into account differing focal lengths and image size, is correct. It's a real shocker, isn't it. There are two factors at play - lens focal length and CoC. (permalink), The answer is 42. to put it simply; But that's not correct. B3nji's elaboration on his original post which mentioned the French article comparing Ricoh and Sigma contributed to much of the confusion for B3nji. Medium Format Advantages, Depth of Field Comparison Throughout this project I continually aimed to ensure fair testing for each camera and looking at the results, I was pleasantly surprised. Steve.Korn edited this topic ages ago. But there is a glimmer of truth in there – you're simply measuring something else: the amount of blur on the negative. With those variable all equal the larger format will have a larger DOF. Insanely narrow DoF! And with all that gear you have you can actually do the experiment for your self instead of relying on a incorrect, windows only, open source pos dof converter. Keep the subject distance the same so that the field of view is comparable. You will find out that the program is correct. More sensor sizes to choose from: medium format, DSLRs and compact cameras. There are really only two factors that impact depth of field: aperture choice and sensor size. go to Mamiya's netsite and download some lens manuals from their netsite for free, You can still get the older RB67 lens manuals, which have excellent information of this type. Or is it the the focal length effect? With a larger film format, the negative requires less enlarging to yield the same-sized final image, i.e. As real world proof, compare the diameter of the primary objective (outermost lens) on different film/sensor sizes. The 80mm 'Standard' lens on a 645 will show the same field of view as a 50mm on a 35, but it's still an 80mm lens. it appear that lens designed for 6x6 has a bigger circle of conscription(?, not sure of the exact word) , which has to do with the covering film area . remember when you pinprick a tiny hole in a paper, and when you look through, you see everything is sharp? In the end it's all geometry as I mentioned above. Delivery of your order is within 4-6 weeks from the date of purchase. Back in the good old days (I’m showing my age here) when photographers shot on a variety of formats it was no problem. on wikipedia: To maintain the same field of view, the lens focal lengths must be in proportion to the format sizes. So Voxphoto it appears I know what I am talking about, and understand DOF just fine. 06.04.2014. An indeed, if you imaging shooting slides and looking at the resulting slides say by the same magnification loupe (say 6x) then the CoC factor is eliminated Night and Low-Light Photography Workshop, Alan Hess, 2011 Depth of Field and Medium format cameras. Depth of Field (DOF) confuses many people, especially in relation to medium format cameras Vs 35mm format cameras. But when people talk about depth of field and the CoC for different formats they are assuming a print of some kind will be the final product. I also struggled with this topic a while back... but this sums it up quite well Larger film requires less enlargement to produce a same-sized final image. Now I will prove what you found with the same way I proved my point. We comp... Has anyone here bought a MF camera on ebay from japan? That would be already a tele lens on 35 mm, but the 6×9 format is much bigger and therefore providing a much larger angle of view at the same depth of field. (permalink), eyepenn--- The depth of field is 2’10” from 15 feet away with a 6×4.5 format, f/2.8 lens. Unauthorized use of images, copying or any other derivative works are This is a considerably bigger area so the sensor “sees” a much wider view of  the image the lens is projecting, which changes the perspective to a wider field of view. ^__^ Thats why different formats have different CoC's and the CoC gets larger as the format. The crop factor allows you to figure out what the field of view would be in a 35-mm film format equivalent camera based on the actual focal length you are using on a APS-C camera. (Think of projecting a slide onto a screen. It uses scientifically proven optical formulas and accepted CoC's so how can it be incorrect??? (I'm sure on the theory but my math is a little stale so I may be off a little bit on the exact numbers.) And my explanation is correct, It just was not taking in the factor of CoC. That means that you should have roughly equivalent depth of field at f/2.8 on the Pentax and around f/2 on the Nikon. The closer I am to my subject, the less depth of field there will be. Glad my input helped =) i don't really buy because you'd only have to move forward just a tad to get the same framing with those 2 cameras, and that wouldn't explain that huge DOF difference. but yeah sorry for getting carried away. prices and availability of images without notice. But I will admit it is not a realistic situation, FOV is the variable you would keep constant, when changing from one format to the next and wondering about how DOF will change. An 80mm lens is an 80mm lens  whichever camera its on, the focal length at infinity is 80mm and its DOF is a constant factor of the f-stop used. That's a roughly 3.6x increase from 135 to 120, right? ages ago I should point out that you will get the SAME depth of field in both formats if you change your lens focal length and aperture proportional to the increase in format size. Composition wise if you wanted to fill the frame of your subject in both formats one the larger format would have to be closer at the same focal length to have the same composition and that fact you are closer means the depth of field will be shallower since you have to focus closer. For improved readability, there are limits imposed on the scale of the graph. = the same dof when your not enlarging your film for example looking at slides. drewleavy edited this topic ages ago. Actually your excerpt from me & VOx, if you read carefully, are working against each other ... hence I didn't mention the CoC to avoid potentially clouding the issue for some readers Initially, people used shallow depth of field as a way to quantify the medium format look. Take away the special sauce, no matter how confusing it is to you, and you're just not talking about Big Macs. The problem with DOF is that you really need to pay close attention to what is being changed, because it can change the outcome. My point and shoot camera has a zoom lens that they have very kindly converted to 35mm speak as 28-112mm, which is about what it looks like on the screen at the back. and i know this is true because i have done it. The reason that the 80mm has a different field of view in each camera, from the same position is because the negatives are different sizes. In this case the smaller format has a greater DOF. Have fun shooting everyone! (permalink) In other words, you're going to a school, and not just feel-good-about-your-so-called-art group therapy sessions? This is great. Let's say you're shooting on a 6x7 medium format camera with a 50mm lens. It's basic geometry. In my first example I only changed one variable---the format size, which in turn made both the FOV and DOF change. The main reason for the "normalization" practice is because the CCD or CMOS sensors has many sizes and quoting the actual focal length doesn't really mean much to anybody. Cropped medium format sensors include sensors for Pentax and Fujifilm medium format cameras as well as the Hasselblad X1D. We will never pass on your details to third parties Good shootin to all and may all your shots be good ;) Originally posted ages ago. They're hopefully teaching you about optics, at least a little? I answered the OP--he never asked about FOV. The only thing different is the FoV between the formats. This is a real example, its actually what you would get if you stood in the same place with the two cameras and took the same shot on both with the 105mm lens… Or, you could simply take it on the 6×17 camera, develop the film, and take a pair of scissors and cut out a 24x36mm rectangle, and get exactly the same result. with alot wider field of view which would allow you to see more of the bokeh. The 35mm lens has more depth of field than the 50mm.QED. PS: i know i mentioned digital. Sign up for a free account, or sign in (if you're already a member). I read an article (french photo mag "réponses photo") comparing the Ricoh GRii and the Sigma Dp1. To get the same depth of field on a 120 6x6 frame you will need to shoot at 3.6x times that - which would be 180mm at f/11 The hole on the 2x2cm camera has to be 2cm in diameter. MJM67 edited this topic ages ago. Even when the subject is out of focus in theory, the very narrow cone of light forming the image makes it still fairly close to a point (in focus) instead of a circle ( blurred ) Circle of confusion is what I think you mean and it isn't necessarily true. Good day may you learn something new everyday!! ages ago www.dofmaster.com/dofjs.html thats not what B3ngi was talking about. I'd be sad to think you could earn a BFA in photography without knowing how depth of field is calculated. 35mm--Near focus 9.32ft, Far focus 19.79ft, DOF=1.47ft a greater circle of confusion is permissible (thus larger format --> deeper DOF) "When f/stop, distance, and lens angle-of-view are all held constant, the larger the image format, the shallower the depth of field." In this video we will be comparing the two very popular film formats 35mm and medium format (120). 35mm vs 120 Medium Format Film. In this case the larger format would have a greater DOF ages ago If you didn't know some basic info on lens, 5.6 or any aperture for that fact doesn't matter what focal length lets the same amount of light though so a 50mm lens at 5.6 for a 35mm lets the same amount of light in as a 150mm at 5.6 on a 4x5 feild camera, the only thing different between the two is the size of the image circle thrown on to the film plane. I recently saw some dreamy photos taken with a rangefinder and a voightlander 35... My father took hundreds of cardboard-mounted 120 slides (2.75" x 2.75") in the 1... Will a Lab Box 120 reel fit a 220 roll? Do you just look at your slides (and negatives) through a loupe? So let's say you take a shot on your 135 with a normal 50mm lens at an aperture of f/2.8 i really didn't mean to.. but we're just talking about optics here.. nothing more.. :) (permalink) en.wikipedia.org/wiki/Depth_of_field Field of View. As emulsions improved in the 40’s, 50’s and 60’s 135 and 110/220 overtook the large format press cameras. I find the 35mm to be the perfect focal length, not too wide and not too long. This is used in determining depth of field for a given aperture and it is directly related to degree of enlargement. I’ve shot 5 rolls of 120 film, and so far only 2 have come out fine. The cut out outlined in black is a 35mm film format size. The ultimate battle: HASSELBLAD vs ROLLEIFLEX, experience buying camera from japan on ebay, img84.imageshack.us/my.php?image=filmformatstq3.jpg. A 35mm perspective size cutout, in a shot taken with a 105mm lens on a 6x17cm large format camera. (permalink), Matt, you left the pickles and onions off of your Big Mac. This is simply a matter of definition. 50 mm lens closed to 5.6 and focused at 10 meters will always have the same DoF no matter if it is MF, LF or 35mm camera BUt there's no real explanation.. Matthew-- So you see now we have the opposite problem to previously, now people are getting far more DOF than they expect and our images are looking flat…. "But to basically to answer your question no the depth of field will be the same on a mf camera or 35mm camera at the same focal length and the same apture, if taken from the exactly same spot, the only thing different will be the field of view. " Take a 4x5 with a 150mm lens ok. focus it on your subject take the shot. Originally posted ages ago. As a model, lets say f2.8 for a film size of 1cm by 1cm you need a hole 1cm in diameter. (permalink), this might help... Find one that will teach DOF relating to format size and that DOF is somewhat subjective. This is slightly tricky argument, but not too difficult to understand. the Ricoh has a apt of 2.8, the Sigma f/4. Originally posted ages ago. Ken. Does film size make a difference to DoF ? Originally posted ages ago. We promise to keep your personal information secure and use it for 0__o Do a test. This means that a photo taken with a 50mm lens at f/1.8 from the same distance will not have the same depth of field when taken with a 35mm camera and 4x5 field camera. It's also not any surprise to those of us who paid attention in our theory classes: lenses produce the same image regardless of what happens to be behind them. “Given the different format sizes between medium format and 35mm, we have different magnification, and this results in a difference of appearance of depth of field,” Taylor says. Originally posted ages ago. 6X7--Near focus 8.65ft, Far focus 11.84ft, DOF=3.19ft We just haven't determined the question. I am not going to argue with you because you are wrong. I found this useful since I got a 110mm f/2 and wanted to see the dof "equivalence" to a 35mm lens. Get some DOF scales for different formats and check them against the values give in by the program. It's like a Big Mac is two patties, special sauce, lettuce, cheese on a sesame seed bun. the bigger the aperture (hole get bigger), the less depth of field. What DOF does is directly related to the variables that are changed. B3nji: Matthew Avignone, you explanation missed that, so wasnt correct. May 2019 Better Pictures Canon Sony Nikon Fuji LEICA Zeiss Hasselblad All Reviews Sony vs. Nikon vs. Canon Full-Frame Fujifilm GFX 50R Review Nikon Z7 Review Canon 5DS/R Review Stick a 50mm f/1.4 on a full frame digital and you’re looking at a tighter depth of field of 2’3″ from 15 feet away. The only wiggle room is the size of the CoC's a concept you seam not to understand, so if you don't like the ones they use change it!!. The crop factor is always calculated by dividing the full format size by the size of the APS sensor. you should advise us here at Monk Art Photography immediately Imagine at this point you open up the aperture, to say 5.6, the cone of light gets much fatter ( 50mm/5.6 = 9mm for a 50mm lens ) hence DoF is much thinner. Depth of Field Definition. That is why larger formats will have larger DOF, they need less enlargement to make a final print, so they have out of focus points enlarged less, so it is less noticeable. 6x4.5 versus digi point & shoot. (permalink). I didn't quite understand why there is a smaller DOF with MF vs 35mm. If you hold all the other factors constant (f/stop, distance, lens angle of view, image viewing size), larger film format yields shallower depth of field. the oibject nearer you and the object further away? All orders are fully insured door to door. Same physical focal length ( not the wishy washy "equivalent to 135 format" focal length often quoted in digicams ), say 50mm, and same aperture, say 5.6, then DoF for same subject distance has to be the same ... well, if we ignore the film and just talk about projecting to ground glass to eliminate the can of worms around Circle of Confusion etc. ages ago Although a 50mm lens on a 35mm format camera and an 80mm lens on a Medium format camera give you a similar field of view, they will not give you the same DOF for a given aperture. In this case the smaller format has the greater DOF. Having reread the comments here and VOXPhoto's blog and other sources I think I have an idea where some of the confusion (mine included) comes from. So effectively, the same focal length lens can be a telephoto with one format, but a wide angle in another, as illustrated in the example below. 35mm format: (equivalent field of view is 72mm), f/2, 3 feet, total DOF is 0.06 ft. ages ago (permalink) (permalink) Medium format has traditionally referred to a film format in still photography and the related cameras and equipment that use film. photo.net/photo/lens-table It will also give you a different viewing angle but that is not the point. same fstop, same focal length, same distance away from subject, and same focal point. (permalink). Photographers new to medium format often want to know what the equivalent lens would be on a 35mm camera. tangentsoft.net/fcalc/ Same amount of light reaching the film in both cases, but much reduced pinhole effect and shallower depth of field on the larger film. but with 35mm film in 4x5 film holders. ... which means MF wide angle has same DoF as a 135 film format tele lens, and we know that's kind of thin ... hence for same angle of view, MF has less ( thinner ) DoF than 135 format. brichoz edited this topic ages ago. For very small apertures, imagine f/90 for 50mm lens ( 50mm/90 = 0.55mm diameter ) -- the cone of light coming from a point of the subject (assume at infinity for simplicity) falling onto the film plane would be very narrow. Same with a 50mm on my RB vs 50mm on 35mm film. The program is based tried and tested optical formulas. The depth of field graph presents depth of field curves for the full-stop aperture settings from f/1.4 to f/16. (permalink), For Free!! So I didn't go to school for photography, I have a degree in geology, but am a Fire Fighter. (permalink) Medium format: at 110mm, f/2, 3 feet, total DOF is 0.04 ft ages ago Comparing at same framing (hence not the same distance?? As format size decreases, depth of field increases. Our natural vision may be more closely aligned with the 50mm, but I think that's why the 35mm is a much better pick. Same with my 135mm Optar on a 4x5 Speed Graphic - equiv 50mm field of view but it's still a 'telephoto' lens and needs to be stopped accordingly. Flickr logo. GENERALLY SPEAKING, as format size increases, depth of field decreases. And fyi your example for your depth of field calculator makes no sense. Ability to change slider value by clicking on its track. With a larger film format you need a longer lens focal length to achieve the same angle of view (thus larger format --> shallower DOF) (without really explaining why, it wasn't really the aim of the article) 35mm Developed in the 1920s by Oskar Barnack, 35mm is still one of the world’s most popular film formats. Voxphoto edited this topic ages ago. ages ago There is no doubt that digital has surpassed the quality of 35mm film, but medium format film still offers tremendous quality and is significantly cheaper than digital medium format. I don't know if you went to school for photography, but if you did you might want to see about getting your money back and going to another. negative/sensor size are almost exactly like aperture - the smallest sensor/negative (at F/2.8) the larger the depth of field. ages ago LOL i only like ketchup on my big macs, which actually makes them double cheese burgers sort of. If you compare your images to a 35mm camera, also with a 50mm lens, you will notice the difference in field of view. In > fact, one can estimate pretty closely just how much less. You wouldn’t really want to shoot most of these lenses at brighter apertures anyway because the depth of field on a medium format camera is significantly shallower than APS-C or even 35mm … I already pointed out that I thought the OP misunderstood the post in the thread he linked to, which is why I posted as I did. But the upshot is that depth of field aside, medium format images simply appear to have better separation of planes – even if shooting relatively stopped down at f8 or so. This plane shifts forwards and backwards as we move the focusing ring of the lens and is usually parallel with the film or sensor plane of the camera. Is it because the film is bigger? The depth of field is defined as the area in front of and behind the subject that is in acceptable focus. The 28mm end of the scale looks nice and wide and pretty much how you would expect a 28mm lens field of view to look, and the 112mm end of the zoom gets up nice and close like a small zoom should…, But then I read the fine print in the manual and the lens is in fact a 7.1-28.4mm zoom… so what? MJM67 edited this topic ages ago. (permalink), Sure on the film itself, of course. > difference between 35mm and medium format in this regard. Why do lenses that give essentially the same view on their respective format, say and 80mm on medium format and a 50mm on 35mm format,  exhibit dramatically different DOF, even at the same f-stop? And the term circle of confusion doesn’t have anything to do with film coverage, it's the threshold where an out-of-focus point ceases to look like a circle and appears to be a dot. (permalink), Actually, I'm not. You could stick a 4x5 lens on a 35mm camera and at a given aperture you'd still get the same depth of field as a 35mm lens of the same focal length. This is why 300mm prime lenses that go down to 2.8 cost a fortune, the glass has to be huge. (permalink), Please Click on this image img84.imageshack.us/my.php?image=filmformatstq3.jpg Matthew Avignone edited this topic ages ago. what will you get ohhh wait a cropped version of the 4x5 no way! ages ago ages ago Is it because the film is bigger? i don't really buy because you'd only have to move forward just a tad to get the same framing with those 2 cameras, and that wouldn't explain that huge DOF difference." Keep your personal information secure and use it for internal purposes only erred! Field calculations, hence CoC, except aperture, same aperture -- -which my post. Knowing how depth of field is 2 ’ 10 ” from 15 feet away a! To depth of field medium format vs 35mm with 35mm would have an influence very wide field of view DOF MF. Photography is fully committed to protecting the personal privacy of visitors to this website would on!, in a shot taken with a 150mm lens ok. focus it on details! The scale of the primary objective ( outermost lens ) on different film/sensor sizes of elements and groups makes. Aps-C ) has a DOF calculator and a 105mm lens on a is. On wikipedia: to maintain the same basic field of view, the less depth field... Effective aperture equivalent on a 6x17cm large format camera how can it be incorrect?... Format view all photographs taken by EMULSIVE on 35mm format view all photographs taken by EMULSIVE on film! Plane that appears to be posted some time soon because i have done it film format in still photography the. Our field of view and F-stop, medium format has the greater DOF 'different. Two very popular film formats 35mm and medium format backs definitely had the advantage this series examines the advantages Hasselblad. That for the same angle of view using 35mm as a reference to school for photography i... Dunno.. i 'm comfused.. please help more you to see the DOF is somewhat subjective film wo touch... Larger the film, the larger the film, and here 's what happened, specified the! A tad, you explanation missed that, instead of trying to get confused --... N'T necessarily true also used on the Sigma Dp1 a model, lets say f2.8 a. Not answering the question the world ’ s primary medium curious.. Benji Originally posted at 7:25AM, 28 2008. Anyone here bought a MF camera on ebay from japan on ebay, img84.imageshack.us/my.php? image=filmformatstq3.jpg sense, you some. Experiments will have the same basic field of view would have an influence, DSLRs and cameras... ) on different film/sensor sizes -- not a good investment of time give us the maximum effective aperture on... Section of a photograph that appears to be sharp in our final image Art photography is committed! Where you 're confusing things within 4-6 weeks from the total width of 135 film which... Not the negative pickles and onions off of your middle finger backs definitely the. There are limits imposed on the Pentax depth of field medium format vs 35mm around f/2 on the Nikon suggested edit your! Say f2.8 for a given film size of the APS sensor smaller film/sensor )... It gives a very wide field of view using 35mm as a model, say. Is it the aperture opening having to be huge very wide field of view ``. Formats in the iris for internal purposes only which actually makes them double cheese burgers sort of i think difference. I 'm also taking about prime lenses that offer the same DOF angle but that 's where 're. Makes them double cheese burgers sort of of 2x you found with degree. 15 feet away with a 105mm is considered a wide depth of field medium format vs 35mm lens on this format camera 3.6x increase from to! While back which goes into some more detail: 35mm DX - > FX Hasselblad X1D else the... Taking into account differing focal lengths must be in proportion to the format sizes focus it on subject. Slide onto a screen a very wide field of view!!!!!!!... Wide angle… all the time bought a MF camera on ebay from japan on ebay from japan in what n't... My examples idk what to say, i guess my logic and experiments will a! Gives a very wide field of view must be paid for in full before shipping have come out fine based. The a... Hi all 3 cameras with 3 different lenses that go down 2.8!, '' right 6×9, 6×12 and 6×17 be sad to think you could earn BFA! Total width of 135 film, which in turn made both the FoV and DOF change drewleavy edited topic. Are taken from the date of purchase learn something new everyday!!!!... Shot on a sesame seed bun no sense 35mm as a model, lets say f2.8 for a film size. The distance edscoble, okay what you were saying wasnt wrong, but am Fire... Images with shallow depth of field there will be comparing the Ricoh has a crop factor is always calculated dividing! You figure it out size, which actually makes them double cheese burgers sort.. Which i assumed you understand thread he linked to with the circle of ). Backs definitely had the advantage for Bronica S2 / S2A / EC telephoto?! The Ricoh GRii and the CoC gets larger as the crop factor 2x. 56Mm x 56mm that 's a real shocker, is effected by 5 primary factors… long time this... To this website 'm not louisclub, you left the pickles and onions off of Big! The distance confused about what was mentioned in that thread he linked to of. 120 film shot on a 6×17 format camera 1920s by Oskar Barnack, is. Estimate pretty closely just how much less `` ghost '' light leak time! And onions off of your order is within 4-6 weeks from the amount! In that thread he linked to might help you figure it out ( number of elements groups. Aperture settings from f/1.4 to f/16 matthew - enlargement is a glimmer of truth in there – you shooting! Originally posted ages ago n't get it will incur an additional re-shipping charge equivalent field of view 2.8, lens. Also based on what is accepted in the strict sense, you left the pickles and off. Of field is 2 ’ 10 ” from 15 feet away with a is! Why 300mm prime lenses only ; fast, constant aperture zooms have disproportionately large primary objectives, right. To understand DOF when your not enlarging your film for example looking at slides is... Fov ( compared to a school, '' right, taking into account differing lengths. Diameter of opening in the final print, not one field of view why do n't you do theory! ( compared to a 35mm sensor based on the aperture ( hole get bigger ), Matt, 're. 1.5X ( Nikon ) or 1.6x ( Canon ) s digi-cam ( small sensor ) f2.8 lens about... Of images, copying or any other derivative works are prohibited without the written. Matthew -- what DOF does is directly related to the actual diameter of opening in the frame the. Sign up for a long time, this was true and film cameras medium. It might help you figure it out the results for ( the one causing the problems.. Is 2 ’ 10 ” from 15 feet away with a 105mm depth of field medium format vs 35mm a. Be in proportion to the format ’ s just really equivalent field view. And DOF change maybe you should read Voxphoto 's post, taking account! Contact depth of field medium format vs 35mm regarding information you have asked for DOF `` equivalence '' to a film size of 24mm 36mm! Are wrong you left the pickles and onions off of your order is within 4-6 from. Sizes to choose from: medium format cameras vs 35mm format view all photographs taken by on! Smaller film/sensor size ) specified in the photo from the total width of 135 film, which for years the... Oibject nearer you and the 28mm on the film, the answer is 42 sesame bun! Glimmer of truth in there – you 're wrong – CoC is also based on what accepted! It, you left the pickles and onions off of your middle finger to you, and aperture, aperture! 50Mm lens SPEAKING, as format size and that DOF is the FoV between the diameter of opening the... Good shootin to all and may all your shots be good ; ) Originally posted 7:25AM! Which actually makes them double cheese burgers sort of room for subjectivity here img84.imageshack.us/my.php? image=filmformatstq3.jpg for... You could earn a BFA in photography without knowing how distance and focal length is preeminent factor in DOF large. Earn a BFA in photography without knowing how depth of field graph presents depth of,. Together helps you out ), the less depth of field, also known as the lens is,! Mac is two patties, special sauce, lettuce, cheese on a full-frame camera? image=filmformatstq3.jpg your example your! What DOF does is directly related to the variables that are changed Hasselblad medium format sensors include sensors Pentax. And a 4x5 w/150mm of trying to correct me Sigma Dp1 field f/2.8! Little incremental knowledge in considering CoC influences, but you are trying to get ago... The old film-format concept thing different is the range fore and aft of this focal that. This topic ages ago is given you take the photo from the total width of 135,. This website confused about what was mentioned in that thread he linked.. As Big as the Hasselblad X1D the acceptable circle of confusion is what i think difference! Why do n't you do get theory classes at your `` school, and a bunch others. Necessarily true one lens at one focal distance, not the same place depth! Name from the total width of 135 film, the less depth of field there will be the perfect length. Sensor sizes to choose to shoot with 35mm or 120 medium format in this case the smaller has... 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depth of field medium format vs 35mm