With the OM-1, OM Digitalsolutions has taken the intelligent object detection, introduced with the OM-D E-M1X to a new level and called it “AI detection AF”. In addition to the additional detection of cats and dogs, both the speed of detection and the accuracy have been significantly improved. I want to briefly discuss which improvements have been achieved and how.
The OM-1 introduces two new essential improvement for subject detection AF. On one hand side the sensor and on the other hand the image processor
The new sensor is a backside illuminated stacked CMOS sensor, who has pixels which are divided in four sub pixel. This design brings two essential improvements compared to the OM-D E-M1X. A stacked sensor can be read out much faster and is therefore able to deliver needed information for AF calculation faster. The four sub pixel information can be read out separately and could be utilized as cross sensors for phase detection autofocus. This is the reason why the OM-1 has a 100% sensor coverage of autofocus sensors. But providing the information faster is only one thing. To be able to utilize this data the image processor has to able to process those data. Therefore the new image processor of the OM-1 is much faster as the one in the E-M1X.
Beside speed accuracy in subject detection is as important. A fast autofocus is not helpful, if the subject detection is working well. The accuracy of the OM-1 subject detection as been improved by two changes. On one hand side the size of the single AF points as been reduced. Therefore, are more AF points available, which leads to a better differentiation between objects, background and foreground. Result is that the camera is not irritated by branches or similar interruptions, which leads to a improved subject detection. On the other hand the algorithm to recognize the single subjects has been improve and programmed directly into the processor, which is thanks to the much higher processing speed able to deliver the focus results in a shorter time. The camera is able to react to changes in front of a lens much faster.
Functional AI detection AF Improvements
Luckily the improvements of the OM-1 are not only in speed and precision, but also in functionality. In case of the E-M1X the intelligent subject detection is only available when you activate C-AF + Tracking and the hole sensor area. That is the reason that the photographer is not able to recognize which subject will be focused on. Even though the camera focus on the subject which is closest to the selected AF point.
The OM-1 is offering intelligent subject detection also on S-AF and the “normal” C-AF mode. In opposite to the C-AF + Tracking, which is following the focused subject, S-AF and C-AF keeps the position in the frame and reacts accordingly. This enable the photographer to decide which of the functionality fits to his / her needs best.
Conclusion about AI detection AF
The new generation of subject detection as essential improvements compared to the one introduce three years ago with the E-M1X. All aspects, which do have influence in subject detection, has been improved.
Die neue Generation der Objekterkennung ist eine wesentliche Verbesserung gegenüber der vor 3 Jahren vorgestellten E-M1X. Alle Aspekte, die einen Einfluß auf die Objekterkennung haben, wurden wesentlich verbessert. The interaction of the new sensor, new processor and new algorithms gives you a package that makes it much easier to photograph objects such as birds in flight. This development also shows what we can expect from new camera generations in the future. Instead of just increasing the number of pixels, there will be more and more computational photography, in which the camera provides functions that make it easier for the photographer to achieve results. After all, 20 million pixels, the OM-1 is more than enough to print out the pictures in any desired size and hang them on the wall.
Interested in details about the OM System OM-1, then read “OM System OM-1 introduced”