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02-16-2016, 12:50 PM   #1426
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QuoteOriginally posted by Mistral75 Quote
Are you certain?
I mean, it looks better, but not that much better, to make my jaw drop.
I still hope, those outer brackets are for 3-points columns and outer single points are further away, BTW... Even if it is against logic and past use of bracket marks...

02-16-2016, 12:50 PM   #1427
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QuoteOriginally posted by Kunzite Quote
The technical solution is just a supposition; same effect can be achieved by redesigned optics. Perhaps to an even greater extent than the second image.
I am afraid it can't otherwise other manufacturers would have done it and Ricoh Imaging themselves for the Pentax 645D and 645Z.
02-16-2016, 12:57 PM   #1428
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QuoteOriginally posted by screwdriver222 Quote
Zoom function in OVF
For precise manual focus :-)
02-16-2016, 01:09 PM   #1429
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QuoteOriginally posted by Mistral75 Quote
I am afraid it can't otherwise other manufacturers would have done it and Ricoh Imaging themselves for the Pentax 645D and 645Z.
Other manufacturers have better coverage without concave mirrors (on some of their cameras), and Ricoh Imaging haven't redesigned the AF for the medium format cameras in order to save cost.

02-16-2016, 01:16 PM   #1430
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QuoteOriginally posted by Mistral75 Quote
Are you certain?

K-1: AF points coverage with standard secondary mirror.
So small coverage at all??
02-16-2016, 01:20 PM   #1431
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QuoteOriginally posted by Kunzite Quote
Other manufacturers have better coverage without concave mirrors (on some of their cameras), and Ricoh Imaging haven't redesigned the AF for the medium format cameras in order to save cost.
Indeed but the coverage of one particular AF module (in absolute terms) only depends on the module itself and doesn't change between the various sensor formats with which it's used: for instance, it's always 1.5 more centred on Nikon's 24x36 bodies than on their APSC bodies (e.g. D3/D500 or D5/D500).

Since K-1 and K-3/K-3 II share the same piece of hardware...



...there is necessarily some trick somewhere.

---------- Post added 02-16-2016 at 09:21 PM ----------

QuoteOriginally posted by starjedi Quote
So small coverage at all??
Without any 'trick', I'm afraid so.
02-16-2016, 01:25 PM   #1432
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QuoteOriginally posted by Mistral75 Quote
Since K-1 and K-3/K-3 II share the same piece of hardware...
How could they, if they have different focus point counts?
02-16-2016, 01:28 PM   #1433
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Optics

02-16-2016, 01:39 PM   #1434
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QuoteOriginally posted by Mistral75 Quote
...there is necessarily some trick somewhere.
There is a lens array and mask in front of the K-3 AF sensor that guides it's coverage:



I am very curious to see how the K-1 AF assembly looks.

Last edited by rawr; 02-16-2016 at 02:05 PM.
02-16-2016, 01:41 PM   #1435
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Relax and enjoy the last few hours before the FF revealing! Nothing will be the same from then on!

As for the hidden aces in this K-1 if it was easy to predict then it wouldn't be a Pentax unique camera! We will find out soon what's the Pentax way of building a FF. It's obvious it won't be just another "me too" product in the market and it will have character. That is what I love to Pentax!
02-16-2016, 02:00 PM   #1436
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QuoteOriginally posted by jaad75 Quote
How could they, if they have different focus point counts?
Because the K-3/ K-3 II's autofocus is somewhat crippled.

What follows is based on the recent rediscovery of an older post by bwDraco/DragonLord:

https://www.pentaxforums.com/forums/172-pentax-k-3/297512-how-much-better-af-...ml#post3287934

In the viewfinder of a K-3 or K-3 II there is a significant gap between either side point and the main AF area.



There are seven columns of selectable AF points in the viewfinder but nine columns of physical sensors in the AF module.



(note that the five inner lines of physical sensors in the AF module correspond to the five lines of cross-type sensors and the three outer lines, with their enlarged telemetric base, correspond to the three f/2.8 sensors)

The two extra columns, which appear to be unused on K-3 / K-3 II, would be enabled on K-1, each for three AF points, thus giving a total of 27 + 3 + 3 = 33 AF points, of which 25 correspond to cross-type sensors, as indicated by Digital Camera Info.

Judging by the spacing of the two brackets inscribed on the focusing screen of K-1, as seen by reflection on the mirror and which most likely correspond to the outer AF points (as with other Pentax cameras), it seems that Ricoh Imaging has found a way to enlarge the AF point coverage



compared to what the K-3 / K-3 II module would spontaneously produce on K-1.



Finally, remember that Ricoh Imaging have been granted a patent for a concave secondary mirror to enlarge the coverage of the AF module:

Ricoh ?????????AF?????????????????So-net???

Et voil!
02-16-2016, 02:00 PM   #1437
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Jaw drop #3..silent/electronic shutter..
02-16-2016, 02:06 PM   #1438
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Less than 25 hours till Christmas K-1's announcement.
02-16-2016, 02:11 PM   #1439
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QuoteOriginally posted by screwdriver222 Quote
Zoom function in OVF

.
What If that's what the mysterious extra scroll wheel does on the top of the right side? Zooms in and out?
02-16-2016, 02:12 PM - 1 Like   #1440
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That is a question wheel
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