PROLEVEL BEATS FULL
PROLEVEL BEATS ISO

In that test they also test Canon 1dmk3 and found it wanting. Noise suppressed very neatly in downscaling. Especially medium frame is very high resolution and thus ends up with viewing size around 12.5%-25% on the mediums commonly used for DSLR photos (posters excluded). They show 100% crops, and you are not supposed to look at 100%. However, this year a CMOS medium frame comes out where they addressed low light performance and battery usage, so it is more up to date like DLSR, who all made the switch around 7 years ago. Ad the customer base are not typically needing low light performance. This means it is far between a new model comes out with improved low light performance.

PROLEVEL BEATS ISO

Why is high ISO performance then falling behind, with better conditions? The market for medium frame is very small compared to apsc and fullframe DSLRs. but remember when comparing cameras you need to normalize to the 'same photo viewed at the same size', which means convert your lenses for FOV, aperture for DOF, and downsize to the same size. Note that it is not always true that the pixels are larger. Medium sensors are large and makes easier to capture small details, and they collect more photons, which gives less noise. Lenses are built for a certain image circle and the performance of the optics is stressed more by having to project the rays into a smaller size.

PROLEVEL BEATS FULL

Things you need to consider is the change in DOF and FOV, just like when you convert crop frames to full frames. The sensors are optimised for size, producing accurate colours and fine tonal graduations as opposed to offering high sensitivity.įor this reason nothing commercially available today can match the low light performance of a 35mm DSLR. Medium format digital backs are most commonly used in landscape, architectural or studio photography where a certain amount of light is guaranteed by the use of a tripod or large artificial light sources. However even though the 80 f/1.9 lens transmits same total amount of light as a 50mm f/1.2 that doesn't mean the medium format system with this lens is as good in low light - this is due to the sensor being less efficient. If your medium format sensor in 1.6 times larger (which is the upper end available today, the Leica S2 you mention is only 1.25 times larger), then to match your 35mm DSLR and 85mm f/1.2 lens would require a 135mm f/1.9 medium format lens.į/1.9 lenses are rare in medium format (mainly for weight reasons), the only current(ish) lens I know of is the Mamiya 80 f/1.9 - this lens can compete (in terms of total light gathered) with a 50 f/1.2 on a DSLR. Theoretically if you keep the size of the entrance pupil and field of view the same then you will capture the same total amount of light regardless of the format.

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