Re: Pre-order: Fujifilm GFX 50S Medium Format body ($6,499)
Schlotkins wrote: RyanFlynn wrote:
I'm probably just not well caffeinated enough at the moment, but with the crop sensor (0.787 compared to 645 film, right?) what's the equivalent depth of field? i.e. the 63/2.8 would look like a 50/2.2? 2.0?
well, FF 35mm would be a 1.22 crop from this sensor. So the lens is like a 52mm. In terms of DoF, 1.6x APC was like 1 stop of DoF loss so FF compared to this would probably be 1/3 or 1/2 a stop so it's like a 52mm f2.3ish lens.
Chris
Because this camera has a different aspect ration 4:3 than 35mm FF which is 3:2 the crop factor depends on the aspect ratio to which you want to print/output. For aspect ratios of 4:3 and squarer (4:3; 4:5; 1:1) the crop factor is .727 for skinnier rectangle (3:2; 16:9) the crop factor is .818. The .787 crop factor is using the diagonal but would give you images with different aspect ratios, so in my view kind of comparing apples to oranges a bit. For depth of field squarer crops the miniMF sensor will have almost a full stop (.9 of a stop) less depth of field at the same aperture. For skinnier rectangular crops the miniMF will have almost exactly a half of stop less depth of field at the same aperture. So, the 63mm f/2.8 will have about the same field of view as a 46mm (let's round in the wrong direction and say 45) on FF 35mm and have the depth of field of about an f/2.1 lens on FF 35mm (we could really say a lot like a 45mm f/2). For skinnier crops it will have about the same field of view as a 52mm lens on FF 35mm (which is the same as many 50mm lenses) and have the similar depth of field as an f/2.4 aperture lens on FF 35mm (so we could say a lot like a 50mm f/2.4). So, it is a normal lens with some but not a lot of shallow depth of field capabilities.
Re: Pre-order: Fujifilm GFX 50S Medium Format body ($6,499)
Schlotkins wrote: RyanFlynn wrote:
I'm probably just not well caffeinated enough at the moment, but with the crop sensor (0.787 compared to 645 film, right?) what's the equivalent depth of field? i.e. the 63/2.8 would look like a 50/2.2? 2.0?
well, FF 35mm would be a 1.22 crop from this sensor. So the lens is like a 52mm. In terms of DoF, 1.6x APC was like 1 stop of DoF loss so FF compared to this would probably be 1/3 or 1/2 a stop so it's like a 52mm f2.3ish lens.
Chris
Because this camera has a different aspect ration 4:3 than 35mm FF which is 3:2 the crop factor depends on the aspect ratio to which you want to print/output. For aspect ratios of 4:3 and squarer (4:3; 4:5; 1:1) the crop factor is .727 for skinnier rectangle (3:2; 16:9) the crop factor is .818. The .787 crop factor is using the diagonal but would give you images with different aspect ratios, so in my view kind of comparing apples to oranges a bit. For depth of field squarer crops the miniMF sensor will have almost a full stop (.9 of a stop) less depth of field at the same aperture. For skinnier rectangular crops the miniMF will have almost exactly a half of stop less depth of field at the same aperture. So, the 63mm f/2.8 will have about the same field of view as a 46mm (let's round in the wrong direction and say 45) on FF 35mm and have the depth of field of about an f/2.1 lens on FF 35mm (we could really sayma lot like a 45mm f/2). For skinnier crops it will have about the same field of view as a 52mm lens on FF 35mm (which is the same as many 50mm lenses) and have the similar depth of field as an f/2.4 aperture lens on FF 35mm (so we could say a lot like a 50mm f/2.4). So, it is a normal lens with some but not a lot of shallow depth of field capabilities.
Re: Pre-order: Fujifilm GFX 50S Medium Format body ($6,499)
Schlotkins wrote: RyanFlynn wrote:
I'm probably just not well caffeinated enough at the moment, but with the crop sensor (0.787 compared to 645 film, right?) what's the equivalent depth of field? i.e. the 63/2.8 would look like a 50/2.2? 2.0?
well, FF 35mm would be a 1.22 crop from this sensor. So the lens is like a 52mm. In terms of DoF, 1.6x APC was like 1 stop of DoF loss so FF compared to this would probably be 1/3 or 1/2 a stop so it's like a 52mm f2.3ish lens.
Chris
Because this camera has a different aspect ration 4:3 than 35mm FF which is 3:2 the crop factor depends on the aspect ratio to which you want to print/output. For aspect ratios of 4:3 and squarer (4:3; 4:5; 1 to 1) the crop factor is .727 for skinnier rectangle (3:2; 16:9 the crop factor is .818. The .787 crop factor is using the diagonal but would give you images with different aspect ratios, so in my view kind of comparing apples to oranges a bit. For depth of field squarer crops the miniMF sensor will have almost a full stop (.9 of a stop) less depth of field at the same aperture. For skinnier rectangular crops the miniMF will have almost exactly a half of stop less depth of field at the same aperture. So, the 63mm f/2.8 will have about the same field of view as a 46mm (let's round in the wrong direction and say 45) on FF 35mm and have the depth of field of about an f/2.1 lens on FF 35mm (we could really sayma lot like a 45mm f/2). For skinnier crops it will have about the same field of view as a 52mm lens on FF 35mm (which is the same as many 50mm lenses) and have the similar depth of field as an f/2.4 aperture lens on FF 35mm (so we could say a lot like a 50mm f/2.4). So, it is a normal lens with some but not a lot of shallow depth of field capabilities.
Re: Pre-order: Fujifilm GFX 50S Medium Format body ($6,499)
Schlotkins wrote: RyanFlynn wrote:
I'm probably just not well caffeinated enough at the moment, but with the crop sensor (0.787 compared to 645 film, right?) what's the equivalent depth of field? i.e. the 63/2.8 would look like a 50/2.2? 2.0?
well, FF 35mm would be a 1.22 crop from this sensor. So the lens is like a 52mm. In terms of DoF, 1.6x APC was like 1 stop of DoF loss so FF compared to this would probably be 1/3 or 1/2 a stop so it's like a 52mm f2.3ish lens.
Chris
Because this camera has a different aspect ration 4:3 than 35mm FF which is 3:2 the crop factor depends on the aspect ratio to which you want to print/output. For aspect ratios of 4:3 and squarer (4:3; 4:5; 1:1) the crop factor is .727 for skinnier rectangle (3:2; 16:9 the crop factor is .818. The .787 crop factor is using the diagonal but would give you images with different aspect ratios, so in my view kind of comparing apples to oranges a bit. For depth of field squarer crops the miniMF sensor will have almost a full stop (.9 of a stop) less depth of field at the same aperture. For skinnier rectangular crops the miniMF will have almost exactly a half of stop less depth of field at the same aperture. So, the 63mm f/2.8 will have about the same field of view as a 46mm (let's round in the wrong direction and say 45) on FF 35mm and have the depth of field of about an f/2.1 lens on FF 35mm (we could really sayma lot like a 45mm f/2). For skinnier crops it will have about the same field of view as a 52mm lens on FF 35mm (which is the same as many 50mm lenses) and have the similar depth of field as an f/2.4 aperture lens on FF 35mm (so we could say a lot like a 50mm f/2.4). So, it is a normal lens with some but not a lot of shallow depth of field capabilities.
Jan 19, 2017 at 05:23 PM
Previous versions of Steve Spencer's message #13886017 « Pre-order: Fujifilm GFX 50S Medium Format body ($6,499) »
the crop factor is .818. The .787 crop factor is using the diagonal but would give you images with different aspect ratios, so in my view kind of comparing apples to oranges a bit. For depth of field squarer crops the miniMF sensor will have almost a full stop (.9 of a stop) less depth of field at the same aperture. For skinnier rectangular crops the miniMF will have almost exactly a half of stop less depth of field at the same aperture. So, the 63mm f/2.8 will have about the same field of view as a 46mm (let's round in the wrong direction and say 45) on FF 35mm and have the depth of field of about an f/2.1 lens on FF 35mm (we could really sayma lot like a 45mm f/2). For skinnier crops it will have about the same field of view as a 52mm lens on FF 35mm (which is the same as many 50mm lenses) and have the similar depth of field as an f/2.4 aperture lens on FF 35mm (so we could say a lot like a 50mm f/2.4). So, it is a normal lens with some but not a lot of shallow depth of field capabilities.