Started Jan 13, 2013 | Discussions thread
Combatmedic870 Senior Member • Posts: 1,111
I don't agree with you not agreeing.

Rachotilko wrote:

X-Trans was not designed to improve the low-light capability. It's main purpose is to reduce the Moire patterns arising in case AA filter is absent. The choice to omit the AA filter is done to improve the sensor resolution. Light sensitivity improvement (stemming from elimination of the AA-filter losses) is slight.

So how come the X-Trans brought the FF performance to the world of APS-C sensors ? Well, it did not actually happen: when X-Pro1 was introduced, it was undoubtelly the much ahead of other APS-C sensors on the market and it almost rivalled the FF sensors available at the time (such as D700).

Since then, both APS-C and FF sensors have improved: several APS-C sensors (Pentax K-5II or Sony Nex7) achieve results comparable with those of X-Trans and D800 employs clearly much more superior sensor. Theses sensors even come in versions with the AA filter omitted - Penatx K-5IIs and D800E.

Is X-Trans sensor layout any good ? Sure it is ! Pentax K-5IIs has AA filter omitted, but that gives rise to visible Moire patterns, while output of X-Trans does not exhibit with this phenomenon.

Will X-Trans layout make X20 better than RX100 in terms of in high-ISO noise ? Hardly, but it may make it approach RX100's resolution - although it will have to fight the diffraction.

Yes.....but the x20 also has a BSI sensor that does improve upon high iso. Its not going to be a difference like the 1/2.3 sensors had with the change to them. but i think it will give an extra 1/4 of a stop. I think in total with the BSI sesnor and new EXR 2 we will see 2/3-3/4 of a stop in improved high iso performance. Which is a decent amount. If iso 800 was usable, then iso 1600 may be usable. The results are going to have additional sharpness, thus allowing you to apply more NR in theory.

We shall see, maybe this will just be a iso 100-400 monster like the merrels....noone knows.

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