The FF camera in fact has the advantage. ISO 100 on the FF camera will have lower noise than ISO 100 on the APS-C camera, because for the full frame camera’s output image to be correctly exposed at ISO 100 there must be more light falling on the sensor compared to the APS-C camera at ISO 100.
In this article, I will be illustrating this with two Sony Alpha cameras, the full-frame A7II and the APS-C crop A6400. Sony A6400 (left) vs Sony A7II (right) Price Ranges.
When we use a 1.6X cropped sensor, the change in depth of field is very close to the change in depth of field that would be the case if we used a 1.6X longer lens with a 1.6X higher f-number on a FF ( i.e. 1.6X wider and 1.6X taller) sensor. For example, if we use a 50mm lens at f/2.8 on our Canon APS-C camera with a crop factor of 1.6X, then:
In this video I see just how much better portraits from a full frame camera (Sony A9) are when you compare them to an APS-C mirrorless camera (Sony A6100). (Sony A9) are when you compare them

That means that a crop-sensor camera at ISO 100 is like a full-frame at ISO 250. The formula is LOG( SQRT( FF-Area / Crop-Area ) ) / LOG( SQRT( 2 ) ) That’s the sensor only. To finish equating the shooting conditions you need to multiply the F-number of the crop camera by the crop factor. So f/2 on the crop camera is like f/3.2 on a full-frame.

3 days ago · The DX-format is the smaller sensor at 24x16mm; the larger full frame FX-format sensor measures 36x24mm which is approximately the same size as 35mm film. Different NIKKOR lenses are designed to accommodate the different camera sensor sizes. DX cameras with smaller sensors are optimized for corresponding DX lenses.
An APS-C sensor will have more pixels doing the imaging than the middle part of full frame sensor in crop mode. A full frame in crop mode will actually have a lower resolution than a native crop camera, unless you're talking about something like the R5 which has a crazy high number of pixels from which to carve out the middle for crop mode.
RF mount: this is used by all the latest Canon mirrorless cameras including both full frame and APS-C EOS R models. You can use the full frame lenses on the smaller camera bodies too. RF-S mount: this is the mount used by Canon’s new APS-C mirrorless cameras. Physically, it’s the same as the RF mount, but the smaller sensor size benefits Full frame cameras will generally deliver better quality, higher resolution images than APS-C cameras, making them ideal for subjects in which resolution and detail are key, such as
Canon's White Paper on Full Frame sensors for DSLR cameras clearly states that the larger pixels on a Full Frame sensor gather FIVE Times as much light that an APS-C sized sensor is capable of capturing. (see page 5). The Illustrations that Canon provide demonstrate much larger sensor cells and how they gather More light in Less exposure time.
For example, Nikon often refers to its full-frame cameras as “FX” and their crop sensor cameras as “DX”, while others refer to cameras by sensor size, such as “35mm” and “APS-C”. For now, all this nomenclature does not matter – look again at the first image and see the resulting photographs on the right side of the camera.
APS-C. Drawing showing the relative sizes of sensors used in most current digital cameras. Advanced Photo System type-C ( APS-C) is an image sensor format approximately equivalent in size to the Advanced Photo System film negative in its C ("Classic") format, of 25.1×16.7 mm, an aspect ratio of 3:2 and Ø 30.15 mm field diameter.
Why it made the cut: Nikon’s mid-level full-frame mirrorless camera emphasizes the features wedding photographers really need. Specs: Sensor size: Full-frame; Lens mount: Nikon Z; Resolution: 24.5 megapixels; Size: 5.3 × 4.0 × 2.8″ Weight: 1.55 pounds Pros: Borrows features from the flagship Z7 II; Hits a sweet spot for image resolution

They’ve compared medium format, full-frame, APS-C and Micro Four Thirds, in a side-by-side shootout—taking identical photos and making large prints to see how the image quality and dynamic

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    • full frame vs aps c camera