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Pentax K-3 III details
#66
(03-28-2021, 12:15 PM)mst Wrote:
(03-28-2021, 11:57 AM)Kunzite Wrote: And care to explain why the 307,000 RGBIr pixels sensor is not designed for subject recognition?

Subject recognition, yes. Nikon has been doing this for ages, even with less resolution. Their 3D AF tracking is based on it (and works very well, btw.)

Face recognition: maybe.

Eye recognition: certainly not. The resolution to do that reliably (!) is simply not there. And there's one more glitch: even if the metering sensor properly detects an eye, there still needs to be an AF sensor at that spot to actually focus on it. With typical AF systems, chances are, there is none. And if if there happens to be one at exactly the desired spot, chances are it's too big to cover the eye only. Or, in other words, to reliably focus on the eye, not the eye lid or the lashes.
Nikon does face recognition with less pixels. Check the specs for e.g. the D850:
https://www.nikonusa.com/en/nikon-produc...-TechSpecs

Pentax does (in the K-3iii) eye recognition with 307,000 RGBIr pixels. Remember that thomass said "it's not possible"? It is. You're still debating around this fact.
How well it works in this implementation, it remains to be seen... but this isn't the best a DSLR can do! And not all mirrorless can reliably focus on the eye instead of eye lid/lashes....

We would make progress... if only you'd start admitting that some assumptions about DSLR's limits are false.
Then, there's the elephant in the room - that DSLRs can evolve beyond the current configuration. Shouldn't we wish them to do so?

(03-28-2021, 12:25 PM)Klaus Wrote: I reckon this is what you can expect from a 180k pixel DSLR eye AF:

https://www.youtube.com/watch?v=WUK2APvbPuo

It locks on "late" - as to be expected at this resolution.
Congratulations. You just proved thomass' claim (that "it isn't possible") a falsehood.
  


Messages In This Thread
Pentax K-3 III details - by Klaus - 10-27-2020, 10:41 AM
RE: Pentax K-3 III details - by davidmanze - 10-27-2020, 11:56 AM
RE: Pentax K-3 III details - by thomass - 10-27-2020, 12:51 PM
RE: Pentax K-3 III details - by Brightcolours - 10-27-2020, 12:54 PM
RE: Pentax K-3 III details - by davidmanze - 10-28-2020, 06:41 AM
RE: Pentax K-3 III details - by Klaus - 10-28-2020, 06:48 AM
RE: Pentax K-3 III details - by MatjazO - 10-28-2020, 08:48 AM
RE: Pentax K-3 III details - by thxbb12 - 10-28-2020, 02:01 PM
RE: Pentax K-3 III details - by toni-a - 10-29-2020, 10:52 AM
RE: Pentax K-3 III details - by davidmanze - 10-29-2020, 03:34 PM
RE: Pentax K-3 III details - by Kunzite - 11-02-2020, 11:18 AM
RE: Pentax K-3 III details - by Brightcolours - 11-02-2020, 03:20 PM
RE: Pentax K-3 III details - by Kunzite - 11-02-2020, 04:43 PM
RE: Pentax K-3 III details - by Brightcolours - 11-02-2020, 04:47 PM
RE: Pentax K-3 III details - by davidmanze - 11-02-2020, 08:25 PM
RE: Pentax K-3 III details - by Kunzite - 11-02-2020, 05:01 PM
RE: Pentax K-3 III details - by Kunzite - 11-02-2020, 09:41 PM
RE: Pentax K-3 III details - by davidmanze - 11-03-2020, 08:36 AM
RE: Pentax K-3 III details - by Kunzite - 03-01-2021, 10:00 AM
RE: Pentax K-3 III details - by Klaus - 03-01-2021, 08:19 PM
RE: Pentax K-3 III details - by Kunzite - 03-01-2021, 09:07 PM
RE: Pentax K-3 III details - by davidmanze - 03-02-2021, 08:57 AM
RE: Pentax K-3 III details - by Kunzite - 03-02-2021, 09:14 AM
RE: Pentax K-3 III details - by davidmanze - 03-02-2021, 11:48 AM
RE: Pentax K-3 III details - by Kunzite - 03-02-2021, 01:47 PM
RE: Pentax K-3 III details - by davidmanze - 03-03-2021, 09:12 AM
RE: Pentax K-3 III details - by toni-a - 03-02-2021, 05:47 PM
RE: Pentax K-3 III details - by Kunzite - 03-02-2021, 07:36 PM
RE: Pentax K-3 III details - by toni-a - 03-03-2021, 07:13 PM
RE: Pentax K-3 III details - by Kunzite - 03-03-2021, 09:33 PM
RE: Pentax K-3 III details - by Kunzite - 03-26-2021, 09:45 AM
RE: Pentax K-3 III details - by davidmanze - 03-26-2021, 11:55 AM
RE: Pentax K-3 III details - by Kunzite - 03-26-2021, 02:54 PM
RE: Pentax K-3 III details - by Brightcolours - 03-26-2021, 06:20 PM
RE: Pentax K-3 III details - by Klaus - 03-27-2021, 12:44 AM
RE: Pentax K-3 III details - by thomass - 03-27-2021, 11:24 AM
RE: Pentax K-3 III details - by Kunzite - 03-27-2021, 12:26 PM
RE: Pentax K-3 III details - by mst - 03-27-2021, 04:08 PM
RE: Pentax K-3 III details - by davidmanze - 03-27-2021, 05:45 PM
RE: Pentax K-3 III details - by Kunzite - 03-27-2021, 06:11 PM
RE: Pentax K-3 III details - by mst - 03-27-2021, 07:59 PM
RE: Pentax K-3 III details - by davidmanze - 03-27-2021, 08:38 PM
RE: Pentax K-3 III details - by mst - 03-27-2021, 08:46 PM
RE: Pentax K-3 III details - by davidmanze - 03-28-2021, 12:17 AM
RE: Pentax K-3 III details - by Kunzite - 03-27-2021, 10:03 PM
RE: Pentax K-3 III details - by mst - 03-27-2021, 10:30 PM
RE: Pentax K-3 III details - by Klaus - 03-27-2021, 11:58 PM
RE: Pentax K-3 III details - by Kunzite - 03-28-2021, 08:06 AM
RE: Pentax K-3 III details - by mst - 03-28-2021, 08:17 AM
RE: Pentax K-3 III details - by Kunzite - 03-28-2021, 08:20 AM
RE: Pentax K-3 III details - by mst - 03-28-2021, 08:29 AM
RE: Pentax K-3 III details - by Kunzite - 03-28-2021, 08:32 AM
RE: Pentax K-3 III details - by mst - 03-28-2021, 08:34 AM
RE: Pentax K-3 III details - by Kunzite - 03-28-2021, 08:41 AM
RE: Pentax K-3 III details - by mst - 03-28-2021, 09:00 AM
RE: Pentax K-3 III details - by Kunzite - 03-28-2021, 09:10 AM
RE: Pentax K-3 III details - by thomass - 03-28-2021, 09:38 AM
RE: Pentax K-3 III details - by Kunzite - 03-28-2021, 09:48 AM
RE: Pentax K-3 III details - by Klaus - 03-28-2021, 10:05 AM
RE: Pentax K-3 III details - by Kunzite - 03-28-2021, 10:29 AM
RE: Pentax K-3 III details - by mst - 03-28-2021, 10:36 AM
RE: Pentax K-3 III details - by Klaus - 03-28-2021, 10:54 AM
RE: Pentax K-3 III details - by Kunzite - 03-28-2021, 11:57 AM
RE: Pentax K-3 III details - by mst - 03-28-2021, 12:15 PM
RE: Pentax K-3 III details - by davidmanze - 03-28-2021, 01:15 PM
RE: Pentax K-3 III details - by mst - 03-28-2021, 01:26 PM
RE: Pentax K-3 III details - by davidmanze - 03-28-2021, 01:48 PM
RE: Pentax K-3 III details - by mst - 03-28-2021, 01:52 PM
RE: Pentax K-3 III details - by davidmanze - 03-28-2021, 02:03 PM
RE: Pentax K-3 III details - by mst - 03-28-2021, 02:10 PM
RE: Pentax K-3 III details - by Klaus - 03-28-2021, 12:25 PM
RE: Pentax K-3 III details - by Kunzite - 03-28-2021, 12:46 PM
RE: Pentax K-3 III details - by mst - 03-28-2021, 01:14 PM
RE: Pentax K-3 III details - by Kunzite - 03-28-2021, 01:31 PM
RE: Pentax K-3 III details - by mst - 03-28-2021, 01:43 PM
RE: Pentax K-3 III details - by davidmanze - 03-28-2021, 03:20 PM
RE: Pentax K-3 III details - by Kunzite - 03-28-2021, 04:02 PM
RE: Pentax K-3 III details - by Klaus - 03-28-2021, 09:27 PM
RE: Pentax K-3 III details - by davidmanze - 03-29-2021, 08:06 AM
RE: Pentax K-3 III details - by Kunzite - 03-29-2021, 08:17 AM
RE: Pentax K-3 III details - by thxbb12 - 03-30-2021, 10:43 PM
RE: Pentax K-3 III details - by Kunzite - 03-31-2021, 06:48 AM
RE: Pentax K-3 III details - by Brightcolours - 03-31-2021, 07:30 AM
RE: Pentax K-3 III details - by davidmanze - 03-31-2021, 08:26 AM
RE: Pentax K-3 III details - by Klaus - 03-31-2021, 11:57 AM
RE: Pentax K-3 III details - by thomass - 03-31-2021, 05:07 PM
RE: Pentax K-3 III details - by davidmanze - 04-01-2021, 08:36 AM
RE: Pentax K-3 III details - by Kunzite - 03-31-2021, 09:33 PM
RE: Pentax K-3 III details - by Brightcolours - 04-01-2021, 11:30 AM
RE: Pentax K-3 III details - by thxbb12 - 04-01-2021, 11:51 AM
RE: Pentax K-3 III details - by Brightcolours - 04-02-2021, 08:30 AM
RE: Pentax K-3 III details - by davidmanze - 04-02-2021, 03:43 PM
RE: Pentax K-3 III details - by davidmanze - 04-01-2021, 04:11 PM
RE: Pentax K-3 III details - by uhoffmann - 05-11-2021, 08:10 PM
RE: Pentax K-3 III details - by you2 - 05-13-2021, 07:25 AM
RE: Pentax K-3 III details - by davidmanze - 05-13-2021, 12:01 PM
RE: Pentax K-3 III details - by Kunzite - 05-13-2021, 08:55 PM
RE: Pentax K-3 III details - by davidmanze - 05-13-2021, 11:20 PM
RE: Pentax K-3 III details - by Kunzite - 05-14-2021, 10:04 PM
RE: Pentax K-3 III details - by davidmanze - 05-15-2021, 05:32 AM

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