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Forum: Pentax DSLR Discussion 09-17-2016, 11:23 PM  
Ricoh quiet about K3 2 Successor
Posted By Barry Pearson
Replies: 147
Views: 12,377
Same here. I already had a K-5, and the extra image quality from the omission of the AA filter (plus the better LCD) of the K-5IIs was well worth the upgrade.
Forum: Photographic Industry and Professionals 09-14-2016, 11:03 AM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
Primes on the official FF lens line-up (February 2016):

31, 35, 43, 50 & 50-Macro, 77, 100-Macro, 200, 300, 560

(55 isn't on the official line-up).
Forum: Photographic Industry and Professionals 09-13-2016, 09:24 AM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
Just a quick observation. There are 15 lenses in Ricoh's official FF lens line-up. 10 primes, 5 zooms. The latter are the ones released in the last 16 months.

I'm not saying that these 10 primes are satisfactory. (They mostly need to be upgraded or replaced, and to be added to). But surely there is no doubt that if Ricoh could only have added 5 lenses to the line-up by the release of the K-1, they had to be these 5 zooms.
Forum: Photographic Industry and Professionals 09-11-2016, 11:26 PM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
People differ massively.

I favour zooms, and top-up with primes for specific purposes. For example, I have all 5 of the recent D FA zooms, 3 of them before I got the K-1. But while I will probably get one or more of the to-be-announced prime D FA lenses, I have no urgent need for them. But instead I would like Ricoh to add a couple of light-weight D FA zooms either-side of the D FA 28-105mm zoom.
Forum: General Photography 09-11-2016, 11:15 PM  
curved sensor?
Posted By Barry Pearson
Replies: 33
Views: 1,698
For "happens in body" read "in post-processing".

I'm happy to have a lens with aberrations that can be corrected well in post-processing, (for example Lightroom), if that makes it easier to design the lens for other benefits, such as cost, weight, minimised aberrations that can't be corrected in post-processing, etc.
Forum: Pentax DSLR Discussion 09-05-2016, 07:45 AM  
Ricoh quiet about K3 2 Successor
Posted By Barry Pearson
Replies: 147
Views: 12,377
No. There isn't a Pentax camera that has the right combinations. For example, what Pentax APS-C camera has SAFOX 12, an articulated LCD, and two card slots? (And there are other combinations that are not available).


I think the general feeling of people who have analysed what Pentax needs is: a new APS-C flagship camera that is a combination of the K-1 (where it has technology that can work on an APS-C camera), the K-3II itself (hence no regression and hopefully some evolution), and the K-70. (And I would expect Ricoh to add a surprise or two!)

Even that wouldn't push the limits of APS-C. There is unlikely to be a Pentax APS-C camera in the near future that has the sports/action capability of the D500.

---------- Post added 5th Sep 2016 at 03:50 PM ----------



The K-5 had been out about 2 years, then the K-5II(s) was launched, then about year later the K-3.

If the K-3-series matches that, now is the time for a new series. (I suspect it will be delayed a bit relative to the K-5-series).

Given the features of the K-1 and the K-70, the K-3II now looks a bit out-dated.

---------- Post added 5th Sep 2016 at 03:57 PM ----------



I hope not!

Significantly lower frame rate. (4.4 fps versus 8.3 fps). Unless a 15 MP APS-C-sized subset of the sensor is used.

25 of about 40 lenses in the current lens-line-up are designated to work at APS-C, which is 15 MP on the K-1.

Much more expensive than would be expected of a K-3II successor.

---------- Post added 5th Sep 2016 at 04:03 PM ----------



Those aren't the only things that people are talking about. An articulated LCD is another thing.

If they launched a camera at the price of the K-3II with SAFOX 12 and an articulated LCD, it wouldn't set the world alight, but it would make buyers happier than having to buy the current K-3II. And if they added evolutionary capability, (for example, higher fps, and some tweaks and surprises), that would make buyers even happier.

There are specification-levels between the K-3II and the "Ideal APS-C camera" (whatever that is) that could be satisfactorily launched, albeit with some criticism. (There would be criticism from people who want a D500 at a K-3II price!)
Forum: Pentax SLR Lens Discussion 09-05-2016, 05:17 AM  
Why do companies remove In-lens Image Stabilization in k-mount version of lenses?
Posted By Barry Pearson
Replies: 38
Views: 2,380
This is a bit beyond my experience. But my observation is that people with such lenses tend to have cameras to match.

What sort of Pentax cameras would make it likely that people would buy such Pentax lenses, instead of the lenses we already see?

How many of these cameras and lenses would Ricoh sell, given the competition from Sigma, Nikon, etc?
Forum: Photographic Industry and Professionals 09-05-2016, 12:07 AM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
I'll change this question then try to answer it: "Having a K-1, with a K-3II as backup, what features would make me buy a new APSC flagship?

It would obviously be a massive challenge for Ricoh to tempt me! It couldn't regress on the K-3II. It would have to provide features that would sometimes provide a compelling reason to leave the K-1 in the car and use the new APS-C flagship instead. Then it would also have to have features that I've found very useful on the K-1.

I can think of only one set of features that would be compelling. Far better support for some types of action photography than either the K-3II or the K-1. (And I have been pretty successful shooting certain types of action with the K-1).

I don't think simply incorporating SAFOX 12 and increasing the burst rate a little beyond the K-3-series would be sufficient. I've found I'm not as limited by the K-1 burst rate as I thought I would be. (Although the option for more fps would always be useful). . And the number of megapixels in the K-1 enables me to use a "center-focus, pan, shoot, recompose in post-processing" style that avoids much need for sophisticated AF tracking. But I have often been limited by the buffer capacity on the K-1.

In effect, it would have to enable me to explore the sorts of sports/action photography that I haven't tried much yet. It might have to get closer to the D500 than is likely from a Pentax camera. It would probably not have enough megapixels for my "center-focus, pan, shoot, recompose in post-processing" style. This would need more than a natural evolution of the existing Pentax AF capability.

And it would have to have an articulated LCD, (although not necessarily with the 4-legged feature of the K-1), for using the camera low down or high up. The "Lock" feature from the K-1 would be very desirable. (It wouldn't need the extra dials on top - they haven't been as useful to me as I thought they would be).

I don't think we are going to see such a Pentax in the near future.
Forum: Photographic Industry and Professionals 09-04-2016, 02:42 AM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
Why wait, if it was ready?

Perhaps a better question would be: "why wasn't it announced last year?" (Or at some other suitable show).

7 months ago, asahi man said "Looks like 2 new APS-C Bodys this year". I wonder if that is still the case (counting the K-70 as one of them)?
Forum: Photographic Industry and Professionals 09-03-2016, 06:09 PM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
I called the 2nd option "extreme" because I don't think there is anything plausible beyond it. Not because I thought it was very unlikely; I think it will turn out to be the case.

I don't think we should worry about the 1st "extreme". I just wanted it on the table, mainly because I've seen concerns that it may happen. Sometimes in debates it is useful to identify people's concerns so that they won't feel ignored. It has the characteristic that if we simply knew that there would be a new flagship, we could dismiss that extreme without knowing any details.

(To some extent, I was actually talking to myself, but in public!)
Forum: Pentax SLR Lens Discussion 09-03-2016, 11:04 AM  
Choosing a Pentax Long Telephoto
Posted By Barry Pearson
Replies: 21
Views: 1,713
You have just described the main reason why I use the D FA 150-450mm rather than the DA* 300mm f/4, which I also have.

The other reason is that when I've shot a long burst with the DA* 300mm (or the DA* 60-250mm) of an object moving towards me and across, for example a racing bike going past while I'm at the side of the track, I got about 5 fps when using the K-3-series. (Instead of the camera's nominal 8.3 fps). I get about 6 fps when using the D FA 150-450mm or D FA* 70-200mm. They auto-focus faster.
Forum: Pentax SLR Lens Discussion 09-03-2016, 09:13 AM  
Choosing a Pentax Long Telephoto
Posted By Barry Pearson
Replies: 21
Views: 1,713
I sold my Sigma 500mm f/4.5 to help pay for the D FA 150-450mm and D FA 70-200mm. I haven't regretted that decision.

Reasons: weight - I'm not strong enough; hunting (at least on K-5-series); difficulty finding a fast moving subject in the frame.

But I know of people who think it is a good lens. So treat what I say as personal, not a general condemnation.
Forum: Digital Processing, Software, and Printing 09-03-2016, 09:08 AM  
What Raw Editing Options Are There?
Posted By Barry Pearson
Replies: 44
Views: 2,918
I don't have shares in Adobe, so I won't try to sell you CC!

But one thing that has discouraged some people is the question "what happen if I have lots of photos in the Lightroom catalogue, and stop paying for CC?"

The answer is: once this becomes apparent, (I think Lightroom CC calls out once per month to check), Lightroom disables the "Develop" module and the "Map" module. I think everything else continues to work. (I'm not sure whether "Import" still works - anyone?)

You can no longer do sophisticated edits, but "Quick Develop" still works. I understand that Adobe pay royalties for some of the features in the "Map" module, so don't want to pay those royalties if they stop getting money!
Forum: Pentax SLR Lens Discussion 09-03-2016, 05:10 AM  
Choosing a Pentax Long Telephoto
Posted By Barry Pearson
Replies: 21
Views: 1,713
I only have experience with one of those lenses: lots of experience! D FA 150-450mm.

I bought it for use on the K-3-series, first on the K-3 (from May 2015), then on the K-3II. Then I've used it on the K-1 since the end of April 2016.

Here is a DPReview thread about my initial experiences on the K-3-series.

Here is the photo-links of my DPReview user-review of the K-1, where (I think) all the "things in flight" photos were taken with that lens.

For my purposes, typically "things in flight", I consider to be very good indeed. I don't use it with the Pentax 1.4x Converter, because I find that makes it harder to frame and pan, and instead on the K-1 I prefer to crop later if 450mm isn't enough. But I won't argue with anyone who finds the Converter useful with it.

I typically stop down a little, and get some benefit. But if I need to, I'll use it wide open.
Forum: Photographic Industry and Professionals 09-02-2016, 10:31 PM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
Assuming for the moment that Ricoh has a coherent strategy for the K-mount range, we will learn a lot about it from the next APS-C flagship camera, if there is one. This strategy matters to most of us here, so it isn't surprising that there is a lot of speculation (and fantasy!) about it.

We have tantalising glimpses of the consequences of the strategy:
5 recent modern FF zooms.
The K-1.
The FF lenses roadmap (4 primes, 1 zoom).
The K-70.
The new DA 55-300 lens with the new KAF4 mount.

It seems to me that Ricoh's K-mount strategy could be be set at two main extremes, with variants in between. And solid information about an APS-C flagship camera would let us know where it stands.

Extreme 1: No new APS-C flagship camera. No replacement/upgrade to the K-3-series. Instead, churning the lower-tier APS-C cameras, with replacements over time for the non-flagship APS-C cameras, just like the K-70 has done so far. The K-mount FF range is the mainline future, the K-1 is the only flagship camera, and over (a long) time Pentax APS-C users are expected/encouraged to "upgrade" to FF.

Extreme 2: New high-specification APS-C flagship camera. A worthy successor to the K-3-series, combining the best of the K-3II itself, the K-70, and any transferable technology from the K-1. Updated sensor, SAFOX 12 or better AF, articulated LCD, better video, higher burst rate (perhaps up to about 10 fps), plus a few surprises. (Obviously it will drive KAF4 lenses; all new K-mount cameras will. But it will still drive earlier mounts; now is not the time to withdraw support for screw-focusing lenses!) The K-mount future will continue to include lots of development to both FF and APS-C lines. The FF line is not "an upgrade route", but a separate take-it-or-leave-it range. Most sales will continue to be for APS-C users.

These extremes have such different implications for many of us that it is not surprising that we want to know! And whatever Ricoh might say, or hint, it needs something tangible like a new camera (or no new camera for years) to confirm it.

(I have no reliable information or plausible rumours about this to offer! Sorry).
Forum: Digital Processing, Software, and Printing 09-02-2016, 12:19 PM  
What Raw Editing Options Are There?
Posted By Barry Pearson
Replies: 44
Views: 2,918
I like the subscription model (and I subscribe to full CC, not just Photography CC), so I can't help!

(The only reason I'm posting is to register that there are some people who actually like the subscription model!)
Forum: Pentax DSLR Discussion 09-02-2016, 12:15 PM  
Renting a K1
Posted By Barry Pearson
Replies: 10
Views: 839
Wow! If that really came from Adobe, how could Adobe get it so wrong?

The K-1 outputs DNG version 1.2.0.0. Adobe published that specification on 12 May 2008. ACR 4.5, DNG Converter 4.5, and Lightroom 2.0, released on 29 July 2008, should all support it.

K-1 PEFs are obviously different. Adobe can't support those until they know their details, typically after a camera is released.
Forum: Photographic Industry and Professionals 09-02-2016, 11:42 AM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
I agree.

I think the choice will be between KAF3 (with no screwdrive but mechanical aperture stop-down) and KAF4 (with no screwdrive and no mechanical aperture stop-down).

And since the K-S1, K-S2, K-70, K-3II, and K-1, (the 2014 and later cameras), all support KAF4, I expect a rapid switch to KAF4.
Forum: Photographic Industry and Professionals 09-02-2016, 10:48 AM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
Sigma 70-300mm f/4-f/5.6
Tamron 70-300mm f/4-f/5.6

They sound like impressive lenses. (I've never used either of them).

I'm a bit suspicious of "... their aberrations will be less obvious"!

I'm judging lenses for high quality right into the corners at and near full aperture. I'm not accepting excuses such as "the corners don't matter for portraits", or "the lens is OK when stopped down enough).

I've been printing at A3+ for years, and I'm probably about to start printing at A2. (Epson P800 printer, perhaps). I'm seeking equipment that will help me achieve that. The K-1 and the 4 near-professional-quality Pentax zooms should help me get there. I don't want to regress.
Forum: Photographic Industry and Professionals 09-02-2016, 08:19 AM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
That would have made it more expensive. Perhaps Ricoh wanted to extend their range of affordable APS-C lenses.

Also, it has a long focal-length range; 55-300mm (5.45x). My observation is that when sensors are small, it is easier/cheaper to have a long range. (It appears only to be small-sensor cameras that have super-zoom lenses).

Then as sensors get larger, zoom ranges tend to become smaller. It just appears to take a lot of largish glass, (hence heavier and more expensive glass), to have zoom ranges as large as we might want.

The DA 16-85mm and D FA 28-105mm are very roughly equivalent on their respective sensors, and similarish in weight and cost, but one has a zoom range of 5.3x while the other has a zoom range of 3.75x.
Forum: Photographic Industry and Professionals 09-02-2016, 07:17 AM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
For some time I've been saying here that what Ricoh should do as high priority is to add two "affordable" high-image-quality, smallish/lightish, FF zooms: one either side of the D FA 28-105mm zoom. I've been advocating these primarily for the sake of both existing and potential K-1 users (as companions for the 28-105mm lens)

But it occurs to me that this could result in a 3-lens set that would be attractive for many APS-C camera users too. Imagine: perhaps "D FA 18-30mm (or 18-36mm) variable-maximum-aperture", and "D FA 100-300mm variable-maximum-aperture". (Or whatever zoom-range could be made cheaply).

I would buy those two lenses even though I already have the recent FF zooms, because they would be useful on the K-1. But I would also consider them for (say) a round-the-world-trip with a K-3II or other APS-C camera. They would have high image quality right to the corners of an APS-C sensor, would be FF-ready in case the users decides to add an FF camera later, or be useful for someone with both FF and APS-C now. I think they would sell like hot cakes!
Forum: Photographic Industry and Professionals 09-02-2016, 06:22 AM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
A few years ago I tested various DA lenses on a Pentax Z-1P film camera. More recently I've tried various lenses on a K-1.

A somewhat simplistic observation (from limited samples) is that FF lenses tend to have better corner-to-corner coverage of the APS-C image circle than APS-C lenses do. Both in terms of image quality and distortions. (I got some surprises, for example when looking at the corner-to-corner sharpness of the APS-C crop of the wonderful DA* 60-250mm at the wide end anywhere near full aperture).

I'm not saying this is universally true. Some APS-C lenses really are good to the corners of an APS-C sensor. Some problems get better when stopping down. And some distortions and aberrations can easily be fixed by lens-profiles in post-processing.

But it is worth keeping in mind when choosing a lens to be used (for example) for landscapes on an APS-C camera.
Forum: Photographic Industry and Professionals 09-01-2016, 11:18 PM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
Those focal lengths are very good for APS-C cameras, with the possible exception of the D FA 15-30mm (which I've never used on an APS-C camera).

24-70mm: When I bought a Pentax *istD, one of the early lenses I bought for it was a Sigma 24-70mm f/2.8 for studio work. (It was FF, but not the latest such Sigma). I used that for years for that purpose. I bought the D FA version, long before I had a K-1, for similar reasons.

70-200mm: I pre-ordered the D FA version for use on the K-3-series in February 2015, long before there was a K-1 to seriously think about. It took a long time arriving, but I still used it (typically for motorsports) on a K-3II.

150-450mm: I pre-ordered the D FA version for use on the K-3-series in February 2015, long before there was a K-1 to seriously think about. It was then my most used lens (for motorsports and "things in flight"), from May 2015 for nearly a year until I got the 70-200mm to take over for motorsports.

28-105mm: This is probably not very useful as a single carry-around lens on an APS-C camera, (although it does make sense on a K-1), but it would make sense to accompany a wide angle prime or zoom as part of a two-lens set.

Note how I exploited the 70-200mm and 150-450mm for action shooting on K-3-series. They would be very useful for many of the people who want to shoot action on any future APS-C camera with better AF and burst rate. I think the next APS-C flagship camera will have the same or better AF as the K-1, (SAFOX 12 at least), and a burst rate higher than the K-3-series, so it will be a useful improvement (although not at D500 level) over the K-3II for action photography. And these two lenses will work well with it.

It is seen that, for me, these lenses enhanced the K-3-series cameras. They will enhance the next APS-C flagship camera for many people too, as will the new D FA primes to be launched next year or so.

Observation: you complained earlier about "screwdrive lenses, older film-era lenses and SDM lenses" and said "if people want markedly improved AF performance, then one needs modern lenses that are up to this more demanding task". I've showed that Ricoh have recently delivered lenses that match your criteria. But .... your second sentence in your quote above is a criticism about price. Is it price, rather than the technical factors you mentioned, that is really behind your criticisms?

---------- Post added 2nd Sep 2016 at 07:41 AM ----------



Chuckle!

But it is worth noting that no lenses were withdrawn as a result of launching those 6 new lenses.

What I'm seeing is that Ricoh are increasing the breadth and depth of the total K-mount range. (Lenses especially. But also cameras, although with some rationalisation).

I'm not seeing signs that Ricoh simply want to churn their current customer base.
Forum: Pentax SLR Lens Discussion 09-01-2016, 12:33 PM  
Why do companies remove In-lens Image Stabilization in k-mount version of lenses?
Posted By Barry Pearson
Replies: 38
Views: 2,380
That is what I was querying.

If I were in Sigma, I would be wondering whether it matters that people with cameras from 2013 or earlier couldn't drive my new lenses if I released them for the KAF4 mount. I might wonder if people with a low refresh rate for cameras also had a low refresh rate for lenses. I might think that all that mattered to me was the rate of sales of post-2013 cameras, because those users are the ones likely to buy my new lenses.

---------- Post added 1st Sep 2016 at 08:43 PM ----------



I disagree with that as stated.

If Ricoh wants cooperation from other lens makers, it should do a deal with them. For example, the D FA 15-30mm and D FA 24-70mm lenses are examples of deals with Tamron.

Otherwise Ricoh should not divert its limited design and development resources for a speculative hope that other lens makers will provide suitable lenses. And it should not do anything that might lead to speculation that it is watering down its commitment to IBIS.
Forum: Photographic Industry and Professionals 09-01-2016, 12:23 PM  
Latest Pentax Rumors
Posted By Barry Pearson
Replies: 598
Views: 45,789
Here is a list of the 6 modern Pentax K-mount lenses, none of the them just screw-drive, none of them old-SDM, all WR or better, all very good for Pentax APS-C cameras, released in the last 16 months or so:

Pentax DA 55-300mm F4.5-6.3 ED PLM WR RE
Pentax D FA 15-30mm F2.8 ED SDM WR
Pentax D FA 28-105mm F3.5-5.6 ED DC WR
Pentax D FA 24-70mm F2.8 ED SDM WR
Pentax D FA* 70-200mm F2.8ED DC AW
Pentax D FA 150-450mm F4.5-5.6 ED DC AW

I have all 5 of the D FA lenses in this list, and I use both the 70-200mm and 150-450mm a lot for action photography such as motorsports and "things in flight". (I used both of these on K-3-series APS-C cameras for those subjects before I had a K-1).

Note: 6 lenses for APS-C cameras; only 5 lenses for the K-1.
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