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04-21-2015, 06:46 AM   #511
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QuoteOriginally posted by jpzk Quote
OMG ! I was seriously considering this lens to have more reach .... I'll have to forget about it !
70-200 has always been problematic for me on APS-c or FF. I'm thinking small venue indoor sports or medium size /outdoor entertainment venues might be the places you could really use it a lot. For those of us who don't shoot in those types of venues, I'm not sure what it's value would be.

04-21-2015, 06:46 AM - 1 Like   #512
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QuoteOriginally posted by pete-tarmigan Quote
That sentence and others appear to have been cut and pasted from their review of the DFA 70-200mm f2.8.
It's worst than that:

1. They copied and paste the text from the Pentax-D FA★ 70-200 mm f/2,8 ED DC AW review:
QuoteOriginally posted by ePHOTOzine:
and provides an angle of view roughly equivalent to a 107-307mm range when used with Pentax APS-C DSLRs.
2. Somebody pointed out the error in the 'comments' section:
QuoteOriginally posted by dannyr:
"and provides an angle of view roughly equivalent to a 107-307mm range when used with Pentax APS-C DSLRs.'"

You might get that focal range if you attached it to a 645Z
3. They acknoledged their error... but messed up with their correction:
QuoteOriginally posted by ePHOTOzine:
and provides a focal length roughly equivalent to a 107-307mm range when used with Pentax APS-C DSLRs.
04-21-2015, 07:31 AM   #513
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All initial reviews should be scrutinized carefully. I am personally a guilty party in this regard. Most sites like Ephotozine employ sensor based analytics (the lens being as good as the camera/sensor its mounted on) to extrapolate their MTF findings. More serious review sites like LensRentals employ an optic bench circumventing the sensor bias. There will be a lot of sites that will try to rush a review on these new lenses, either using pre-production models, older firmware or cutting corners to get those initial views by a curious public who thirsts to know. I would be weary of these sites personally.

Note: Be extra careful of lens AF findings,it's often the hardest, inconclusive and least scientific part of any lens review, prone to user error and other issues.
04-21-2015, 08:21 AM   #514
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QuoteOriginally posted by normhead Quote
I'm thinking small venue indoor sports or medium size /outdoor entertainment venues might be the places you could really use it a lot.
There is no point in shooting sports or entertainers from far away. 70-200 is perfect for indoor sports on FF, on APS-C, 50-135 is ideal for court sports. I haven't shot minor hockey since I left film behind, but if you are taking pictures of action at the other end of the rink, you get nothing but shots of backsides, so longer than 135 mm is not that useful. Outdoor football, my A 70-210 was a good range of focal lengths on the K-30, it was the manual focus part that dropped my keeper rate to about 20%. The "pros/5D users" often bring a 300mm prime with them to football games, so on APS-C, the 70-200 range should be perfect. For everything else, once I got the 18-135, my old 70-210 has hardly ever come out of my bag.

04-21-2015, 11:31 AM   #515
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QuoteOriginally posted by normhead Quote
70-200 has always been problematic for me on APS-c or FF. I'm thinking small venue indoor sports or medium size /outdoor entertainment venues might be the places you could really use it a lot. For those of us who don't shoot in those types of venues, I'm not sure what it's value would be.
Several reasons for me:
- That the best one can make with f/2.8 as a zoom. After would be too big expensive.
- On FF it work quite well for portraiture and the f/2.8 make it ideal for weddings and many events in combination with a 24-70.
- It is just fine as a general purpose tele if you are not after wildlife.
- and there the case you explained.
04-24-2015, 03:22 AM   #516
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A new shot on the K3-II pictures page :

1/200s f/5.6 ISO400 410.0 mm



Seems to have been noise-reduced in PT...

Last edited by timautin; 04-24-2015 at 03:31 AM.
04-24-2015, 04:59 AM   #517
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That tiger shot is my favorite K-3 II shot, and 150-450 shot. It's impressive, and cute.

The information about the shot suggests it was processed in camera, using the rich range of in-camera processing options in the K-3 / K-3 II. No need for external software or external NR.
04-24-2015, 12:34 PM   #518
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They could even have used pixel-shift with this static tiger !!!


For now, i am convinced this DFA150-450 will be mine on top of the list...

04-24-2015, 12:43 PM   #519
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QuoteOriginally posted by Zygonyx Quote
They could even have used pixel-shift with this static tiger !!!


For now, i am convinced this DFA150-450 will be mine on top of the list...
We don't know much on the practical limitations of "pixel-shifting", I assume its aimed at landscape/macro shooters, though I'd love to use it on wildlife, hope there's no cap on shutter speed when using this feature.

I think the reason we're seeing such an amazing performance out of the 150-450 might be due to the newest firmware(better compatibility with the K3ii) and more polished/finalized products. I always thought even the initial posted shots of the 150-450 have been outstanding. I'm not buying Ephotozine's so-called half-assed review with all the miss-focused/mislabeling issues and outdated sensor-based MTF measurements. The D-FA 70-200 f2.8 is supposed to be even better, guess we have to use our imagination in fathoming such a feat.
04-24-2015, 01:01 PM   #520
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QuoteOriginally posted by Stavri Quote
We don't know much on the practical limitations of "pixel-shifting", I assume its aimed at landscape/macro shooters, though I'd love to use it on wildlife, hope there's no cap on shutter speed when using this feature.
The whole capture (4 exposures) can't be shorter than 1/2 s with this sensor and the camera has to be extremely stable during that time to allow for precise, 3.8 um shifts.
04-24-2015, 01:09 PM   #521
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QuoteOriginally posted by jaad75 Quote
The whole capture (4 exposures) can't be shorter than 1/2 s with this sensor and the camera has to be extremely stable during that time to allow for precise, 3.8 um shifts.
That seems to eliminate 99% of wildlife shooting conditions. Thank you for the information. -Regards
04-24-2015, 01:11 PM   #522
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QuoteOriginally posted by jaad75 Quote
The whole capture (4 exposures) can't be shorter than 1/2 s with this sensor and the camera has to be extremely stable during that time to allow for precise, 3.8 um shifts.
which means I don't sell my Merril DP3m camera just yet.....
04-24-2015, 01:21 PM   #523
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QuoteOriginally posted by jaad75 Quote
The whole capture (4 exposures) can't be shorter than 1/2 s with this sensor
Do we know this as a fact?
The A77 can do 12fps, by the way.
04-24-2015, 01:26 PM   #524
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QuoteOriginally posted by Kunzite Quote
Do we know this as a fact?
We know the sensor specs - 8.7 fps max.
QuoteOriginally posted by Kunzite Quote
The A77 can do 12fps, by the way.
That's a different sensor - the IMX096:
Chipworks | Sony SON-IMX096AQL Camera Module

---------- Post added 04-24-2015 at 03:29 PM ----------

With 12fps it would be about 1/3 s for a capture, so not much of improvement anyway.
04-24-2015, 01:35 PM   #525
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QuoteOriginally posted by Kunzite Quote
Do we know this as a fact?
The A77 can do 12fps, by the way.
I think its based on an assumption that the K-3II has an unmodified version of the same sensor as the K-3 with the same readout speed. I'd say that's a safe assumption given the fact that Ricoh havent mentioned anything about a new or custom sensor.

But I would of course be happy for this to be wrong
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