A detailed comparison. The equivalent 35 It is also interesting to note that a 50mm lens is based on a 2” lens which is a hint longer in focal length. More-or-less: not quite an average of all of the above, but a reasonable fit that's close enough on both 6x6 and 6x4.5 to a 35mm focal length that is actually used. As other Quorans noted here, digital and film aren’t completely comparable because of different structure (digital photosensitive diodes vs. film grain). On 35mm, this angle equates to a lens of 27.27mm focal length so you can consider it similar to a 28mm lens on 35mm . Introduced in 1963, the 126 film cartridge film is 35mm wide, and the image size is 28 x 28mm. In photography, the 35 mm equivalent focal length is a measure that indicates the angle of view of a particular combination of a camera lens and film or sensor size.The term is useful because most photographers experienced with interchangeable lenses are most familiar with the 35 mm film format.. On any 35 mm film camera, a 28 mm lens is a wide-angle lens, and a 200 mm lens is a long-focus lens. From the diagonal of a film format can be easily calculated. So now you could alter the 645 format to 35mm proportions which works out as 56mm x 37.33mm. If I have missed anything, please contact me and let me know. 2. compare results on screen - good for pixel peepers 3. compare prints and projected pictures - actually gives useful information for the photographer The frame number for this format is printed at the bottom of the frame. 6X6 4. The aspect ratio is the same as that of the original 6x6 format, so the same considerations apply. 35mm film = 50mm ; 6x6 = 80mm; 4x5 sheet film = 150mm; If I want a tele on my 6x6, I go up based on the 80mm normal. The 35mm film gate size used was 24mm x 36mm. It depends on how you calculate it. Second instalment of the series on the evolution of the Hasselblad packing material online. 8x10 4x10 . Consequently, the spread in equivalent focal lengths depending on what Basically, this is a number that will translate that medium format lens to what a 35mm camera lens would be. $749 95. Actual . the smaller frame. 10x12. And of course, this is just 35 mm; with medium and large format you get even more detail, and the larger you keep going the possibilities keep skyrocketing. All rights reserved. None conform to 35mm format with the exception of the enprint size of 6 x 4 recently available for that very purpose. ( "Diag" in the table above.) 645 film (56 x 41.5mm) has 2.6 times the area of full-frame 35mm (36 x 24mm), or a 0.62075x crop factor.. A 43mm lens on a 67 format camera gives approximately the same angle of view as a 21mm lens on a 35mm camera. focal length of (43.2mm/79.2mm * 150mm) = 82mm and an equivalent … 1.5 times as large on 35 mm format as that of the equivalent lens on 6x6 format. More on all that a bit later. 35mm equivalent focal length (mm): You can find information on the sensor size in your camera in the manual, product information of the manufacturer of on DPReview.com . the same focal length. "Approximately" is the key word. 120 film shot on a 6x6 camera is 56mm x 56mm ... (and obviously same focal length 28mm, this being, i assume the 35mm equivalent in respect to the sensor size) the sigma had a quite noticealble smaller DoF!And in the article, they were saying this had to do with the bigger sensor the sigma has. Or where and how can I calculate DOF for medium format? Another option would be to select lenses so that their vertical angles of view The simple answer is any lens Full Frame or DX lens that you put on a cropped sensor camera you multiply to figure out its 35mm equivalent. 1. count lines - should give us the absolute peak resolution of the film files. Many people “move up”, as they say, from a 35mm camera to Medium Format, to obtain better quality than they have experienced with their 35mm SLR. (24 x 24) + (36 x 36) and find the square root of the answer. Regarding exposure, nothing changes; f/2.8 is f/2.8. Horizontal Angle Of View. Here are the possible ways to compare. Instead, Equivalent focal length means the specification of the hypothetical different lens used on 35 mm film that gives the same Field of View as the different lens that you actually use on your sensor size. https://petapixel.com/2014/12/18/comparing-image-quality-film-digital Further, if you crop the MF image to a rectangle, you will of course be reducing the angle of view. ... 35 mm back to top of page. Though Lets say the base is f8 (for the 35mm camera) what would be a similar aperture for 6x6 and 8x10? 12 Mos. A 43mm lens on a 67 format camera gives approximately the same angle of view as a 21mm lens on a 35mm camera. The Mamiya 6 MF is an interchangeable lens medium format rangefinder, which will shoot 6×6 frames on both 120/220 roll film or, with the aid of optional masks, permits you to change to 6×4.5 medium format and panoramic format 35mm film. bit taller than the 35 mm format. If I converted from 6x6 to 35mm, determined the 35mm tele, then back out to 6x6, I would go nuts. They are plentiful for 35mm, and there are some for 6x6, but I haven't been able to find any for 6x4.5. But most 35mm cameras used the 50mm.But even this doesn’t work as the 6 x 6 format is really meant to be 645 which is 41.5mm x 56mm, unless of course you take pictures for calanders. mmCalc is a super simple photography focal length calculator. The Mamiya 6 MF is an interchangeable lens medium format rangefinder, which will shoot 6×6 frames on both 120/220 roll film or, with the aid of optional masks, permits you to change to 6×4.5 medium format and panoramic format 35mm film. It was replaced in 1999 for journalism use by digital with the introduction of the Nikon D1. Ok, what is DOF for 80mm F2.8, 400mm F2.8, 135mm F4, 500mm F5.6? A 2x tele = 80mm x 2 = 160mm, then round to the nearest lens = 150mm. not only from this nominal focal length, but also from that of other Zeiss/Hasselblad lenses having nominally IF YOU DO IT THAT WAY ! Equivalent focal lengths with 35mm cameras. So F2.8 in true 645 is F1.7 right? The difference in the aspect ratios of 35 mm format and 6x4.5 format is small. The 6x4.5 format is a little 11x14 The actual focal lengths differ, I also wasn't a big fan of the 5 blade straight aperture of the Hasselblad V lenses. For example, a 6×6 camera has a crop factor of .55. 2. compare results on screen - good for pixel peepers 3. compare prints and projected pictures - actually gives useful information for the photographer For such people, the Pentacon Six is an obvious choice, with its similar layout and handling characteristics. It is Not your lens. The diagonal of which is 67.30mm making the standard lens as 65mm possibly 70mm. From that you can calculate other focal lengths. Diagonals are more accurate than long edges when comparing formats of different shapes, so I'll use the 43.2mm diagonal of 35mm vs. the 79.2mm diagonal of the 56mm x 56mm—aka 6x6—'Blad. From that, you think in 645 terms when taking the picture but can have either vertical or horizontal at the time of printing. Now, for those who like the 35mm format in those proportions then this is a correct comparison. ... in proportion to the format sizes. 35mm film = 50mm ; 6x6 = 80mm; 4x5 sheet film = 150mm; If I want a tele on my 6x6, I go up based on the 80mm normal. A very frequently asked question is one about the 35 mm format focal length equivalent of the lenses used on Hasselblad's 6x6 format. mmCalc is a super simple photography focal length calculator. 35mm equivalent focal length (mm): You can find information on the sensor size in your camera in the manual, product information of the manufacturer of on DPReview.com. Pentax Zoom Normal-Telephoto 80-160mm f/4.5 Autofocus Lens for 645N. Search Within Results. So F2.8 in true 645 is F1.7 right? On a Canon you multiply it by 1.6x to get 28.8-53.4 in its 35mm equivalent. So the calculation now alters as the diagonal of a 32mm x 24mm is exactly 40mm. This film type is often confused with standard 35mm without careful inspection because of its 35mm width. Focal . A 2x tele = 80mm x 2 = 160mm, then round to the nearest lens = 150mm. What killed the 6x6 systems for me was that I wanted a long (>300 mm, ~180 mm equivalent on 35 mm) apochromatic tele. "Approximately" is the key word. an 80mm lens on a MF FF would be the focal length equivalent of a 45mm lens on a 35mm FF sensor. an 80mm lens on a MF FF would be the focal length equivalent of a 45mm lens on a 35mm FF sensor. Or where and how can I calculate DOF for medium format? Angle of View Chart . Click here for an online calculator, comparing the angles of view for a number of popular formats. 35mm. A digital camera would have to be 156 megapixels to give you the same kind of detail as 35mm film. crop an diagonally composed image in either format to the image produced by the other format. On top of that very few sizes of standard B & W printing papers are of the same proportions. If you are shooting portraits with a MF, you don't really need the equivalent of a 90mm lens on the 35mm format. frame is taller than the 35 mm format frame, yet less wide. If you have the kit 18-55 on a nikon you multiply it by 1.5x which is 27-82.5mm in its 35mm equivalent. 8x10 4x10 . What is Equivalent is the size of the Field of View produced by the two combinations of lenses and sensors. Also called 6x6, 2-1/4 x 2-1/4" or simply "Two and a Quarter." I heard that F2.8 is F1.4 in 35mm. Item Condition : 9. Simply input your focal length, sensor size, and max aperture and we'll give you what the 35mm equivalent is of that configuration. This ruled out TLRs. Since the known focal lengths of 35 mm format lenses are also nominal, with their true focal lengths rarely known, If I have missed anything, please contact me and let me know. Second edition of "Hasselblad Compendium" released, Calculator added to equivalent focal length section, 'Equivalent' 35 mm format (24x36 mm) focal lengths, News about Hasselblad Historical - RSS feed. A very frequently asked question is one about the 35 mm format focal length equivalent of the lenses used on format in 1956, 6x6 is not the only Hasselblad film format. 6X7 7. The (vertical) equivalence is true. It was introduced in 1957, to produce slides that could be projected using normal 35 mm format projectors. See All Details. If the simple calculator doesn't suit your needs, we also offer calculators for crop factor based on sensor size and completely custom lens + sensor crop factor calculations. the (horizontal) equivalence is true. Perhaps that is why the famous Rollei 35 series had a 40mm lens ! I heard that F2.8 is F1.4 in 35mm. The calculator is compatible with all the standard film formats such as 6x4.5, 6x6 and 6x7 etc. With medium format 6x6 film you get 56 x 56 = 3,136 sq mm, which is 282 megapixel. Diagonals are more accurate than long edges when comparing formats of different shapes, so I'll use the 43.2mm diagonal of 35mm vs. the 79.2mm diagonal of the 56mm x 56mm—aka 6x6—'Blad. de Bakker. The simple answer is any lens Full Frame or DX lens that you put on a cropped sensor camera you multiply to figure out its 35mm equivalent. 35mm. It’s just really equivalent field of view using 35mm as a reference. Regarding exposure, nothing changes; f/2.8 is f/2.8. 6 x 6 is actually 56 x 56 from which the diagonal is 79.20mm. I'm looking to expand my lens collection for it, but i'm not sure what I want to grab, since there are quite a few choices in focal length and I like to visually see the differences. See All Details. Ever since Hasselblad introduced a film magazine producing 16 frames in 6x4.5 ... in proportion to the format sizes. Using the second method which fits the paper better anyway changes the situation making 90mm the equivalent focal length of a 50mm lens on a 35mm camera. The Mamiya 6 rangefinder camera was introduced in 1989 as and shoot solely 6x6 120 medium format film. If you have the kit 18-55 on a nikon you multiply it by 1.5x which is 27-82.5mm in its 35mm equivalent. Even this is not quite right as the 35mm format has a ratio of 1:1.5 whilst 645 is about 1:1.35. It is interesting to note that the original Nikon cameras, made just after the war, were this very size. ... APS was the 1990's equivalent of the Disc and Instamatic (126 and 110) formats. you might ask. not only from this nominal focal length, but also from that of other Zeiss/Hasselblad lenses having nominally The ratio is 6 x 6 is 1.8 x 35mm focal length. With medium format 6x6 film you get 56 x 56 = 3,136 sq mm, which is 282 megapixel. The USA forbade their import as it didn’t suit Kodachrome processing mounts of 24mm x 36mm. The one I am reviewing will be with the 75mm (approximately 45mm in 35mm equivalent) lens. As Figure 1 shows, the different aspect ratios of both formats lead to a rather different framing: the 6x6 It is often asked, perhaps because there is no single answer. The "normal" focal length of a 35mm camera is 43mm. If you want to be awkward then 42mm x 56mm IS the same proportions rather than 41.5mm x 56mm. The medium format (6x6cm) equivalents of those two on a 35mm camera would be approx 120mm and 250mm ... APS was the 1990's equivalent of the Disc and Instamatic (126 and 110) formats. The aspect ratios of 6x6 format (1:1) and On a Canon you multiply it by 1.6x to get 28.8-53.4 in its 35mm equivalent. an approximation will be the best a general comparison can achieve. The focal length of a ‘standard’ lens is calculated by measuring the diagonal of the film format. How do the focal lengths of standard lenses for medium format cameras (75mm/80mm) compare with 40mm-58mm on 35mm cameras? Here's the chart: The third and last Hasselblad format to consider is the 4x4 cm 'superslide' format. So, if you multiply an 80mm lens by .55, you’ll get 44mm. More information on the how an why of the Lens Multiplication Factor (also referred to as 'Crop Factor') can be found on Wikipedia Actual . We can also use that crop factor to determine the 35mm-equivalent … A digital camera would have to be 156 megapixels to give you the same kind of detail as 35mm film. Item Condition : 8+ ... 50mm (35mm Equivalent) Leaf Shutter; Flash Sync to 1/1600 Sec. B&H # 1788938 . On true 645, the DOF is equivalent to f/1.7 on 35mm. Used. Method 4: divide the diagonal of the 120 frame by the diagonal of the 35mm frame, then divide the medium-format focal length by the resulting number. There are other "medium format" formats - 4.5x6, 6x7, 6x9 for example. A 35mm lens on a 67 format camera is probably a little wider than a 19mm equivalent in a 35mm camera. 10x12. not a problem, i.e. I believe 100mm is considered "normal" for 6x9. The 35mm equivalents of those two focal lengths on a 6x6 camera would be 35mm and approx 80mm. lengths. produce. ... 35 mm back to top of page. If the simple calculator doesn't suit your needs, we also offer calculators for crop factor based on sensor size and completely custom lens + sensor crop factor calculations. the same (Figure 3), the difference in aspect ratio leads to a 1.5 times larger vertical angle of view on 6x6 format. This feature is very useful, effectively making two great cameras in one. Using Jim's diagonal rule you need to multiply the RB67 lens focal length by 0.48 to get the 35mm equivalent. Promo Financing * Add to Cart. vertical angles of view are equal (blue outline = 6x4.5 format). Yashica-635 is a double format film TLR camera made by Yashica and introduced in c.1958.. If you know that 50mm is “normal” and that, say, 90mm is a “portrait” field of view in the 35mm (Film/DSLR) world, then what you need to know is these focal lengths yield different fields of view in the medium format world. 6x9 . 120 film shot on a 6x6 camera is 56mm x 56mm ... (and obviously same focal length 28mm, this being, i assume the 35mm equivalent in respect to the sensor size) the sigma had a quite noticealble smaller DoF!And in the article, they were saying this had to do with the bigger sensor the sigma has. That would be the lens you would use on a 35mm camera for an exact match. We’ll be limiting ourselves to the digital domain which means scanning but we’ll use a microscope to see how much detail there is actually on the film itself for those who might want to use the analog darkroom. Figures 4 and 5 show the difference in framing when lenses are chosen so that either the horizontal or are superimposed. 11x14 4x5 6x12 . If I converted from 6x6 to 35mm, determined the 35mm tele, then back out to 6x6, I would go nuts. Angle of View Chart . The Hasselblad focal lengths given in the table to the left are nominal. So it is up to you whichever format suits you best as to which are the correct equivalent focal lengths. Ok, then what is similar aperture value in 35mm? In Figure 1, 6x6 format (black outline) and 35 mm format (red outline) frames that have the same size diagonal To keep the table simple, the choice was made to use the nominal focal lengths instead of the true focal The actual focal lengths differ, I'm conducting a test here at work (photography company) using the above 3 formats and was wondering if there is a good way to determine equivalent apertures for DOF. Using the long side angle of view the figure is 0.56. Even the results of these calculations may be misleading, as the 35mm format is rectangular (longer on one side than the other), while the 2¼ square (6×6) format is square. The 35mm equivalent lens is shown for reference. In other words, a 100mm lens on 645 sees about the same angle of view as a 60mm lens does on 35mm film.. Yes, it is true that at a given field of view and aperture, there is a shallower depth of field than a 35mm equivalent. The Hasselblad focal lengths given in the table to the right are nominal. Hasselblad's 6x6 format. This would be equivalent to 50mm on a 35mm or FF digital camera. The Mamiya 6 rangefinder camera was introduced in 1989 as and shoot solely 6x6 120 medium format film. For those who have forgotten: to calculate the diagonal of a 35mm negative use the following formula. In photography, the 35 mm equivalent focal length is a measure that indicates the angle of view of a particular combination of a camera lens and film or sensor size.The term is useful because most photographers experienced with interchangeable lenses are most familiar with the 35 mm film format.. On any 35 mm film camera, a 28 mm lens is a wide-angle lens, and a 200 mm lens is a long-focus lens. There are some cameras with a standard lens of 45mm – notably the Contax G series. Actual image size 56 x 56 mm. More-or-less: not quite an average of all of the above, but a reasonable fit that's close enough on both 6x6 and 6x4.5 to a 35mm focal length that is actually used. Horizontal Angle Of View. It is often asked, perhaps because there is no single answer. It interchanges between 3 lenses, 50mm, 75mm and 150mm. For critical purposes, an actual test of all aspect is chosen to be equal is also smaller. When I was younger, I just accepted that the 75mm lens in my Rolleicord was equal to the 50mm lens in my Praktica. Also called 6x6, 2-1/4 x 2-1/4" or simply "Two and a Quarter." subject just fitting inside the 6x6 frame vertically will not fit inside the 35 mm frame. 35mm is the world's most popular film format. (the square root of 24 squared + 36 squared). the same focal length. For example, an 180mm lens on a 4x5 camera would have an equivalent focal length of approximately 54mm in 35mm terms and for 8x10 it would be 27mm. It is also interesting to note that the 645 format is all but the same ! On true 645, the DOF is equivalent to f/1.7 on 35mm. It is enhanced Yashica-D with the added ability to use 35mm film as an alternative to 120.To use 35mm requires an adaptor kit. 1. count lines - should give us the absolute peak resolution of the film files. 645,6x6(hassblad) and 6x7 are all medium format but will have different ratios. But when it comes to 35mm the diagonal measures 43.2666153055mm – So a focal length of 45mm would be closer to the medium format standard  lens of 80mm. I'm looking to expand my lens collection for it, but i'm not sure what I want to grab, since there are quite a few choices in focal length and I like to visually see the differences. A subject just fitting inside the 35 mm frame horizontally will not fit inside the 6x6 frame, and conversely, a 6x9 . There is something called a crop factor. 645 6x6. As a result the table only gives an approximation of the equivalent 35 mm format focal lengths. It obviously is very easy to crop the larger frame to produce an image exactly the same as that produced inside The one I am reviewing will be with the 75mm (approximately 45mm in 35mm equivalent) lens. 80mm was considered a "normal" lens for 6x6 medium format - the Rollieflex, a 6x6 camera, came with a fixed non-interchangeable 80mm lens. 645 6x6. Making the 6 x 6 format the same proportions as 35mm format, Making the 35mm format the same proportions as the 645 format. So there is not a lot of difference between the two. A 35mm lens on a 67 format camera is probably a little wider than a 19mm equivalent in a 35mm camera. 5x7 6x17. 110 Film As a result, the diagonal often has to be taken as the basis for comparisons. The viewable area of 126 negative film is about 26.5mm x 26.5mm. I believe that the lens factor is .30 for 4x5 and .15 for 8x10. On that 6x6 this lens had a 35mm equiv. being much smaller than the 6x6 format, the angles of view will be smaller too. If you know that 50mm is “normal” and that, say, 90mm is a “portrait” field of view in the 35mm (Film/DSLR) world, then what you need to know is these focal lengths yield different fields of view in the medium format world. 6 x 6 is actually 56 x 56 from which the diagonal is 79.20mm. It was replaced in 1999 for journalism use by digital with the introduction of the Nikon D1. The TLR can be turned on its side to get a vertical format but it is scarcely convenient. And so I settled on the Mamiya RZ67. Here are some other advantages and disadvantages of 35mm film that you may or may not have thought of. There are other "medium format" formats - 4.5x6, 6x7, 6x9 for example. https://petapixel.com/2014/12/18/comparing-image-quality-film-digital focal length of (43.2mm/79.2mm * 150mm) = 82mm and an equivalent … are the same (Figure 2). Method 4: divide the diagonal of the 120 frame by the diagonal of the 35mm frame, then divide the medium-format focal length by the resulting number. You can pick up a used camera for a few bucks, and they're so ubiquitous that some people just give them away. You can compare the focal lengths of 6 x 6 and 35mm by: Let’s look at leaving the formats as they are. Older manual lenses can be had for pennies on the dollar of their original price as well. ( "Diag" in the table above.) Feel free to … Making the 35mm format the same proportions as the 645 format. 50mm being slightly less than 80mm and slightly more than 75mm in medium format terms using the first method. Key Features. 6x7cm. Here's the chart: 6x7cm. 80mm was considered a "normal" lens for 6x6 medium format - the Rollieflex, a 6x6 camera, came with a fixed non-interchangeable 80mm lens. Let’s look at leaving the formats as they are. Manufactureres usually only state the diagonal angle of view of the lenses they Re: ?medium format vs 35mm(lens equivalent)?? But on a 6x7 piece of film with a crop factor of 0.50, that 105mm lens actually has a field of view of 52.5mm in 35mm terms. They are plentiful for 35mm, and there are some for 6x6, but I haven't been able to find any for 6x4.5. The differences in both horizontal and vertical aspects then still make it very hard, if not impossible, to The calculator is compatible with all the standard film formats such as 6x4.5, 6x6 and 6x7 etc. Framing in both formats is equivalent only in the rare case that subjects have to be framed diagonally. On that 6x6 this lens had a 35mm equiv. It interchanges between 3 lenses, 50mm, 75mm and 150mm. For example, my interest is figuring out the 35mm equivalents for the most popular large format lens sizes of 4x5, 5x7, 8x10, and 11x14. I have found that 24mm x 32mm would be better. Making the 645 format the same proportions as 35mm is roughly in agreement with the manufacturers. 4x5 6x12 . From this you can see that 80mm is roughly equal to a touch over 50mm in 35mm terms, which is probably how the factory arrived at these focal lengths. I believe 100mm is considered "normal" for 6x9. The 6x9 film gate size used for the calculations was 2.25 x 3.25 inches. The aspect ratios of 6x6 format (1:1) and 35 format (1:1.5) differ considerably, and an answer will depend on what aspect is used in the comparison. As every schoolboy knows that the square on the hypotenuse of a right-angled triangle is equal to the sum of the squares on the other two sides. mm format focal lengths will be longer accordingly. Ok, then what is similar aperture value in 35mm? For example, if you like using an 85mm lens on a 35mm camera, you would need to use a 200mm lens on the 6x9 format to get the same angle of view. You can compare the focal lengths of 6 x 6 and 35mm by: Leaving the formats as they are.