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03-28-2015, 11:10 PM - 1 Like   #451
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Hoping for more pictures and less frontfocus discussion...

03-28-2015, 11:21 PM   #452
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QuoteOriginally posted by stevebrot Quote
Sigma 70-200/2.8 EX DG APO Macro HSM II: 1.37 Kg (chose older version since it lacks OS)

Pentax-D FA * 70-200/2.8: 1.76 Kg

1.76/1.37 = 1.28x (28% heavier...not 200-300%)


Steve
Well, with hood and tripod mount it goes up to 2030g which is the real use case. Dunno about the Sigma though.
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03-28-2015, 11:31 PM   #453
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Thank you kenspo for sharing your experiences with these preproduction and unfamiliar lenses. I appreciate what you add to the forums, and I would not have the same patience you do with forum drama! Kudos.
03-29-2015, 02:06 AM - 1 Like   #454
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QuoteOriginally posted by stevebrot Quote
Sigma 70-200/2.8 EX DG APO Macro HSM II: 1.37 Kg (chose older version since it lacks OS)

Pentax-D FA * 70-200/2.8: 1.76 Kg

1.76/1.37 = 1.28x (28% heavier...not 200-300%)


Steve
Hehe..i was trying to say it with a smile..not easy with writing. I know its not that much more heavy..But it feels extremely heavy. And big!

---------- Post added 03-29-15 at 11:07 AM ----------

QuoteOriginally posted by zeitlos Quote
Hoping for more pictures and less frontfocus discussion...
More pictures will come..even concerts photos

---------- Post added 03-29-15 at 11:08 AM ----------

QuoteOriginally posted by filoxophy Quote
Thank you kenspo for sharing your experiences with these preproduction and unfamiliar lenses. I appreciate what you add to the forums, and I would not have the same patience you do with forum drama! Kudos.
You can't please everyone..hehe..And as an ambassador, i feel i need to be active in forums, social medias etc..So im here to stay

---------- Post added 03-29-15 at 11:11 AM ----------

QuoteOriginally posted by jaad75 Quote
So now we need to wait for Kenneth to say something about his AF configuration and focusing technique he was using here...
As said earlier. I forgot the SR i was shaking in the cold..But beside that, i used AF-C, one point focus..and i used the back button to continuous focusing while following the moving subject. I felt testing the AF-speed told me the most yesterday. I can and will do the changes i need to make it sharper. So this was just a first test of many


Last edited by kenspo; 03-29-2015 at 02:12 AM.
03-29-2015, 02:16 AM   #455
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More corrections, more glass, more weight...
03-29-2015, 02:51 AM   #456
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just a side note on these pictures and my own experience: wouldn't it be great, if you could tell your camera to ignore or supress certain colours/wavelenght ranges in autofocusing calculation? This would be great in any situation where the subject to be in focus has distinct colours from the back/fore/over/under ground... Footbal and other games would be much safer to shoot. This could be a custom function and could be added to custom mode. Just imagine switching to Footbal mode and being safe that your focus won't end up on the grass behind (this is happening to me more often than I'd like)
03-29-2015, 03:05 AM   #457
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Hehe, yes. That would be a nice feature. Football or any action, is really hard to do
03-29-2015, 03:18 AM   #458
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An even better option would be, if you could use the camera as some kind of colour picker, you point to the colour you a) prefer to follow or b) prefer to ignore, snap it (just like you do with colour balance) and the camera will look for it and use in AF calculation as per preference. Is this doable? Any experts to comment?

03-29-2015, 03:20 AM   #459
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QuoteOriginally posted by davidsladek Quote
just a side note on these pictures and my own experience: wouldn't it be great, if you could tell your camera to ignore or supress certain colours/wavelenght ranges in autofocusing calculation? This would be great in any situation where the subject to be in focus has distinct colours from the back/fore/over/under ground... Footbal and other games would be much safer to shoot. This could be a custom function and could be added to custom mode. Just imagine switching to Footbal mode and being safe that your focus won't end up on the grass behind (this is happening to me more often than I'd like)
If you manage to lock on an object with a given color, K3 would track the subject. I tryed it, it works. This was not fast paced, but the camera indeed use color tracking, maybe even shapes. I don't know exactly.
03-29-2015, 03:27 AM   #460
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AF and colours

QuoteOriginally posted by Nicolas06 Quote
If you manage to lock on an object with a given color, K3 would track the subject. I tryed it, it works. This was not fast paced, but the camera indeed use color tracking, maybe even shapes. I don't know exactly.
this is obviously great to know, but is always a solution for one particular movement/tracking. If you had the option to pre-set the colour preference, it would be easier to a) lock on subject and b) jump from subject to subject without the risk that the AF locks on background inbetween, which I think is a very frequent issue

Last edited by davidsladek; 03-29-2015 at 03:40 AM.
03-29-2015, 04:00 AM   #461
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QuoteOriginally posted by davidsladek Quote
This would be great in any situation where the subject to be in focus has distinct colours from the back/fore/over/under ground...
In Nikon terms, that would be similar to their '3D tracking' AF-C mode, which [theoretically] engages the AE metering sensor to record the colours under the active AF point at the time of half-button press. This information is then used to help the AF system track targets better (eg red rugby jersey against green grass).

It seems likely that in the K-3's AF system similar tech is already at work, since the K-3's sophisticated 86K pixel metering sensor seems more than capable of supporting '3D-tracking' or anything equivalent.
03-29-2015, 04:23 AM   #462
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To me the K3 AF hardware and metering is on the top of what exist. There very few things to improve like a few more points to have a wider area covered and maybe an f/8 AF sensor for TC support.

Software wise I think they still need some time to improve the algorithms and make work great. I don't know if they would improve the K3 support on it or it will start with the new FF (together maybe with more AF points).
03-29-2015, 07:43 AM - 2 Likes   #463
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QuoteOriginally posted by Nicolas06 Quote
From the roadmap, 4 lenses are announced:

An APSC UWA like 12-28mm.
A DFA wide diameter 24-70 f/2.8 or something near to that.
A DFA 28-105 or something like that (to me this is the kit lense)
A DFA UWA

To me the urgency is to the 24-70 AND 28-105 available at the same time as the FF as they will be the zooms one will immediately buy with the camera (one or the other). The 2UWA can wait, in particular on APSC where there already an UWA zoom.

They have then the basics but need to release DFA primes and a few more zooms like a 70-300 f/3.5-5.6 to be equivalent of 55-300 but with FF support and if possible higher quality and a few primes (DFA24, DFA35, DFA50, DFA85, DFA135, DFA200, DFA300)...

The Roadmap is nice,but itīs not complete and the public version.
We can wait for 3 - 5 primes till end of 2016.
Best regards
03-29-2015, 08:47 AM   #464
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QuoteOriginally posted by asahi man Quote
The Roadmap is nice,but itīs not complete and the public version.
We can wait for 3 - 5 primes till end of 2016.
That got our attention!
03-29-2015, 09:06 AM   #465
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Hej Kenneth,

When you say super sharp, how it compares to - lets say the DA*55 or the FDA100mm macro?
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