
What is 35mm equivalent focal length?
Not to be confused with effective focal length. 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.
Why is it called a 35mm lens on the APS-C?
If the equivalent focal length of the lens is different on an APS-S sensor, why do they bother claiming it is for an APS-C while naming it a 35mm lens? – shennan Jul 22 ’15 at 10:23 They name it as a 35mm lens because it is a 35mm lens, i.e. it brings parallel lines into focus 35mm behind the second principal plane.
What is the difference between the 35mm and APS-H size camera?
The shooting screens of the APS-H size camera and APS-C size camera have smaller designs than the shooting screen of the 35mm half-frame camera. For this reason, the 35mm-equivalent focal length and the focal length image of the mounted lens are as follows:
What is the equivalent of an 80mm lens on APS-C sensors?
Obviously, the lens used was a 50mm, but the same lens on an APS-C sensor gives the approximate equivalent of an 80mm lens on a full frame sensor. Here’s another way this information is helpful: Let’s say you have two camera bodies dangling around your neck – one a full-frame DSLR and another a Micro Four Thirds camera.

What is 35mm equivalent in APS-C?
So, a 35mm f/1.8 on APS-C is roughly equivalent to a 50mm f/2.8 on a full-frame camera. You could, however, shoot with the same lens, at the same aperture, from the same distance, and get the same depth of field regardless of sensor size—but you would have completely different framing from each sensor.
What size is equivalent to 35mm?
A full frame image sensor’s light capturing area is about the same as that of 35mm film. (measuring 36mm X 24mm) Therefore, with all other things being equal, the field of view will be the same. Full frame image sensors are found on higher end Digital Slr cameras.
What is the focal length of a 35mm lens?
A 35mm film camera has a negative that is about 36mm wide by 24mm high (the “35” comes from the physical width of the film stock that is exactly 35mm wide). A ‘normal lens’ (has a field of view that appears ‘natural’ to humans) on a 35mm film camera has a focal length of 50mm.
What focal length is 35mm on a crop sensor?
52.5mmBecause cropped sensor cameras have a smaller sensor, the actual focal length won’t be the same as on a full-frame. To make this easier, let’s look at some examples of focal lengths: 35mm = 52.5mm on a cropped sensor. 50mm = 75mm on a cropped sensor.
What is the digital equivalent of 35mm film?
35mm film is 24 x 36mm, or 864 square millimeters. To scan most of the detail on a 35mm photo, you’ll need about 864 x 0.1, or 87 Megapixels. But wait: each film pixel represents true R, G and B data, not the softer Bayer interpolated data from digital camera sensors.
What is 50mm equivalent on APS-C?
A 50mm lens on APS-C cameras is nearly a perfect portrait pairing. On Canon cameras, it’s a 1.6x crop, which is around 80mm. But for the rest of the world, it’s a 75mm equivalent.
Why 35mm is the best focal length?
35mm lenses can allow for closer focusing distances, and paired with the wider field of view, they provide a deeper depth of field overall. Depth of field refers to a set distance between the closest and farthest objects in a photo that appears acceptably sharp.
How do you find the equivalent focal length?
According to CIPA guidelines, 35 mm equivalent focal length is to be calculated like this: “Converted focal length into 35 mm camera” = (Diagonal distance of image area in the 35 mm camera (43.27 mm) / Diagonal distance of image area on the image sensor of the DSC) × focal length of the lens of the DSC.
How do you shoot 35mm focal length?
The Distance From Your Subject First off, don’t get up close and personal to your subject as the 35mm lens will make whatever is closest to the camera really big. Instead, always try to shoot portraits with a 35mm lens getting around half of the person’s body in the frame.
What is crop sensor equivalent to 35mm?
Full-frame cameras have a crop factor of 1x, so their sensors are the same size as 35mm film. Crop-sensor cameras (like most hobbyist models on the market) have a 1.6x or 1.5x onen, so the sensor is 1.6 or 1.5 times smaller than a 35mm film frame.
What is 85mm on APS-C?
If you were to mount the 85mm lens onto an APSC crop sensor camera, the image incurs a 1.5x crop. This means that your 85mm field of view was multiplied by 1.5x, which equals 127.5mm.
Is 85mm good for crop sensor?
85mm on Crop Sensor (Prime For Portraits) The 85mm perhaps is the most versatile focal length for portrait photography. If you want to shoot awesome portraits, whether it’s a close up headshot or capturing more of the person, then I strongly encourage you to consider this prime lens.
What is 35mm ratio?
The aspect ratio of the 35mm frame is 3:2. Most dSLR cameras default to the 3:2 aspect ratio. A 3:2 image will print a full frame 4×6 print with little to no cropping, however, there is a big difference when printing an 8×10 (see below).
What 35mm means?
A 35mm format — just called 35mm — describes a common type of image sensor format that’s used in film photography. The general rule is, the larger the film, the better the resolution. Smaller formats like 35mm will be noticeably grainier when printed — but that’s often a much-loved result of film photography.
What does 35mm mean for a lens?
35mm Camera Lens Definition A 35mm lens is a lens with a focal length of 35mm (millimeters). Focal length is the length from the optical center of the lens to the camera’s sensor, but that’s not super important to remember.
What is 35mm field of view?
The field of view for a 35mm Nikon lens turns out to have a horizontal FOV of 54.5 degrees, 37.8 degrees of vertical range, and 63.4 degrees diagonally. This is the maximum area your camera can “see.”
How to find the equivalent of a 35mm lens?
How is 35mm Equivalent Determined? Calculating the 35mm focal length equivalent of a camera lens is done by using a number that is called the crop factor or the focal length multiplier. The crop factor or focal length multiplier represents the ratio of the size of an image sensor compared to 35mm film.
Why are 35mm cameras called 35mm?
They were called 35mm cameras because the actual width of the film that was used with them (including the sprocket holes for advancing the film) was 35mm. Portion of a 35mm Film Strip (click to enlarge) Digital Camera Image Sensor.
What is the crop factor of a compact camera?
Here is another example. Most basic compact cameras have an image sensor size of 1/2.3. The crop factor for that size image sensor is 5.6. A compact camera with a 4.3 to 43mm zoom range has a 35mm equivalent zoom range of about 24to 240mm (4.3mm to 43mm X 5.6 = 24.08mm to 240.8mm)
What is the focal length of a Nikon 900?
For instance, the actual focal length of the zoom lens on the Nikon A 900 compact digital camera is 4.3-135mm. That is the equivalent of a 24-840mm lens focal length on a 35mm camera. (the image sensor size is 1/ 2.3) Many Digital Slr cameras like the Canon EOS Rebel T7i are equipped with an 18-55mm focal length lens as part of the basic camera kit.
What is a 35mm equivalent focal length?
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.
How to calculate 35mm focal length?
35 mm equivalent focal lengths are calculated by multiplying the actual focal length of the lens by the crop factor of the sensor . Typical crop factors are 1.26× – 1.29× for Canon (1.35× for Sigma “H”) APS-H format, 1.5× for Nikon APS-C (“DX”) format (also used by Sony, Pentax, Fuji, Samsung and others), 1.6× for Canon APS-C format, 2× for Micro Four Thirds format, 2.7× for 1-inch sensors (used in Nikon 1 cameras and some Sony RX cameras), 5× to 6× for compact digital cameras, and even higher for built-in cameras of mobile devices like cell phones or tablets.
How wide is a 35mm film?
A standard 35 mm film image is 36 mm wide by 24 mm tall (35 mm refers to the height of the film including the perforations for film transport), and the diagonal is 43.3 mm. This leads to the following conversion formulas for a lens with a true focal length f :
How to calculate equivalent depth of field?
For example, a 50mm f/2 lens on a 2× crop factor Micro Four Thirds camera would be equivalent to a 100 mm (= 2×50 mm) f/4 (= f/ (2×2)) lens on a Full-frame digital SLR in terms of field of view, depth of field, total light gathered, and diffraction effects.
What is the EFL of a camera?
Apart from the width- and diagonal-based 35 mm equivalent focal length definitions, there is a third definition: EFL = 50 f / d mm. However, it is not clear to what extent this definition is used.
Is a 28mm lens a wide angle lens?
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. However, now that digital cameras have mostly replaced 35 mm cameras, there is no uniform relation between the focal length of a lens and the angle of view, since the size of the camera sensor also determines angle of view, …
How many mm is a 35mm lens?
A 35mm lens on a camera with a crop factor of 1.5x, has a 35mm equivalent of 53mm.
What is the difference between a 28mm and a 35mm lens?
A 28mm lens on a camera with a crop factor of 2x, has a 35mm equivalent of 56mm. A 35mm lens on a camera with a crop factor of 2x, has a 35mm equivalent of 70mm. A 50mm lens on a camera with a crop factor of 2x, has a 35mm equivalent of 100mm. An 85mm lens on a camera with a crop factor of 2x, has a 35mm equivalent of 170mm.
What is the crop factor of a 28mm lens?
A 28mm lens on a camera with a crop factor of 1.6x , has a 35mm equivalent of 45mm.
How to find the focal length of a camera?
Begin on the left with the crop factor of your cameras sensor. Move to the right to find the full frame lens field of view you want to achieve. Continue to the end of the chart to find the lens focal length you would need to emulate that exact field of view.
Is 35mm equivalent to full frame?
When talking about crop factors and lens equivalencies in the real world, its common for people to say “35mm equivalent” instead of “full frame equivalent”. In fact full frame refers to the frame size of 35mm film . So the two phrases can be considered the same.
What is 35mm equivalent?
Therefore, for the sake of world peace (and peace of mind), at least on this blog, when I say ’35mm equivalent’, I am referring to the currency of 36mm x 24mm.
What is a 35mm frame?
Full-frame 35mm is common and refers to a fixed size and aspect ratio, both horizontally and vertically. There is no ambiguity.
What is 36 x 24?
36mm x 24mm, simply known to the photographic world as 35mm or full frame (neglecting the niche market of medium and large format).
Why don’t cinematographers use full frame?
They also don’t use the term ‘Super 35mm’ by itself simply because there are different versions like 4-perf, 3-perf, 2-perf and so on. They would have to get more specific than that. Some cinematographers prefer anamorphic exclusively, so what would ‘full frame’ or ‘Super 35mm’ mean to them? Nothing.
Can you use 24mm on a DSLR?
You quickly shoot the first with the full frame DSLR, using a 24mm lens. Now, you can’t use 24mm on the smaller camera because it would give you a different scene. To get the same scene, you realize you need a 12mm lens. This is how the lens equivalent works.
Can you use a lens on a camera?
Every camera needs a lens in front of it, and often, you can use a lens designed for one sensor on another sensor. This is where the problem starts. Think of windows. A larger window will show more scenery than a smaller one. Yet, the focal length of your eye remains the same.
Is the Blackmagic 4K camera bigger than the Red Epic Dragon?
While the Blackmagic 4K Camera has a smaller than Super 35mm size, the Red Epic Dragon has a bigger than Super 35mm size. In fact, not a single manufacturer makes the exact same size as Super 35mm 3-perf!
What is the difference between a 35mm and a 50mm lens?
Note also that a 50 mm lens designed for a 35 mm camera will not change its focal length when installed on a camera with a smaller sensor. It will always be a 50 mm lens because this number is determined by the optical characteristics of the lens. What changes when installed in a different camera is its equivalent focal length, which has nothing to do with the actual focal length. What changes is the field of view due to cropping on a smaller sensor.
What is it — 35 Millimeters?
He collaborated with the Eastman company to produce a celluloid film having a width of 35 mm with four perforations per frame and a frame size 18.67 × 24.89 mm. Dickson used the 70 mm film stock supplied by Eastman Kodak company, which they cut in half and added perforation (holes placed in the film stock and used for transporting the film) along both sides. This size later changed to the modern 16 × 22 mm format when an optical sound track was added.
Why is focal distance not needed for beginners?
This characteristic is not needed for beginners, those who bought their first camera because the equivalent focal distance will not tell them anything. Experienced photographers, however, who are accustomed to 35 mm cameras, will find this characteristic very useful. It will also be useful for those who are thinking about buying a new camera with a different size of a sensor and want to find out if their old lenses will work on a new camera and how they will shoot.
What camera do fawns use?
This fawn picture was taken with a 180 mm lens on a full-frame camera (24 × 36 mm, aspect ratio 3:2). On an APS-C camera (22.3 × 14.9 mm, aspect ratio 4:3, crop factor 1.61) with the same lens, the angle of view would be reduced, and if to attach the same lens to a camera with a 1/2″ sensor (6.4 × 4.8 mm, aspect ratio 4:3, crop factor 5.41), the angle of view would be still smaller. The 1/2” sensor is used, for example, in Xiaomi Mi 9 phones and DJI Mavic Air 2 drones
Why do they use this old size description for modern image sensors?
So, why do they use this old size description for modern image sensors? Most probably because of marketing reasons because the manufacturers can put a slightly bigger number on the sensor box, which looks better . Note that at the same time, the dimensions of sensors larger than 1 inch are indicated in millimeters.
What is the crop factor of a 1/1.6 sensor?
In our example, when we compare the full-frame sensor to 1/1.6” sensor (crop factor of 4.3), the f-number will change from f /4 to f /4 × 4.3 = f /18.
What is the size of a 1/4 sensor?
However, this inch size has nothing to do with the actual sensor size. For example, 1/4” is 6.35 mm and the size of this 1/4″ sensor is 3.20 × 2.40 mm with the diagonal 4.00 mm.
What focal length is used with APS-C 52,5?
This is the reason why Sony say, “ 35mm Equivalent focal length when used with APS-C Camera 52,5”, because that is in effect what you are getting with the A6000, a 52.5mm equivalent image.
What is the focal length of a 52.5?
The specifications here seem to suggest that 52.5 is the lenses normal focal length, but when attached to the APS-C sensor (not full-frame), the equivalent will be 35mm.
How far is the focal length of a lens?
The Focal Length of a Lens cannot physically be altered. It is the distance between the centre of a Lens and its focusing point, the camera sensor. Therefore, the Sony 35mm Lens has distance of 35mm from the sensor to the lens. (Please note, a lens may have several corrective elements within it, the measure is taken from the final glass nearest to the camera sensor).
What is a full frame sensor?
A full frame sensor, (also referred to 35mm cameras, based on the old 35mm film formats) has a measure of 36mm across with 24mm down. Therefore, a lens when used with a camera that has a FF of 36mmx24mm, the light coming in to the camera, will cover the entire size of the sensor exactly.
What is the crop factor on Sony A6000?
However, when the sensor size is smaller, IE the Sony A6000, the light coming through will be greater than the sensor and therefore the image displayed will be greater and therefore be cropped by a factor of 1.5.
Does the size of the image circle change?
This should also help you understand why no matter how you mount the lens, the size of that image circle doesn’t change (unless you move the lens closer to the surface that the image is projected on, which you don’t normally).
Is a 52.5mm lens the same as a 35mm lens?
So this lens on an APS-C camera will have the same field-of-view as a 52.5mm lens on a full-frame (i.e, 135 format or 35mm – don’t get confused with the format being the same as the focal length – it’s just a coincidence) camera.

Overview
Calculation
Depth of field equivalent
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with APS-C sensors:Leica CL / TL Systems ; Nikon DXX00 Series (DX format), Nikon Z50 ; Sony A7RS series ; Canon XXXD with 35mm full-frame 135 sensors:Leica M, SL Cameras; Nikon D600, 700, D800 Series (FX format), Nikon Z series ; Sony A7R Series ; Canon EOS 5D, 6D with medium format, 44×33 sensors:Hasselblad X1D, 907X, CFV 50C ; PhaseOne P30+, P40+…
Conversions
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 l…
External links
35 mm equivalent focal lengths are calculated by multiplying the actual focal length of the lens by the crop factor of the sensor. Typical crop factors are 1.26× – 1.29× for Canon (1.35× for Sigma “H”) APS-H format, 1.5× for Nikon APS-C (“DX”) format (also used by Sony, Pentax, Fuji, Samsung and others), 1.6× for Canon APS-C format, 2× for Micro Four Thirds format, 2.7× for 1-inch sensors (used in Nikon 1 cameras and some Sony RX cameras), 5× to 6× for compact digital cameras, and eve…