BarryPearson

Joined: 27th September 2013

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BarryPearson
Class_A wrote:
It is furthermore not easy to anticipate moiré. It typically does not appear when you expect it and vice versa. Maybe that's what the new Bayer-AA-filter-less cameras are bringing to the table. They are teaching us to become moiré aware.
After I bought the K-5IIs, I certainly became moire-aware in the sense that I was hyper-vigilant in looking for it.

In spite of that, I hardly ever found it, and in the odd case that I did it disappeared during printing (A3+) and downsizing (for projection and the web). In about 60,000 shutter activations, a few thousand in the studio, it has not been a problem.

I don't deny that it can occur. I am simply saying that despite extensive use of my K-5IIs this year, it has never become a problem. I will never buy a camera with a fixed AA filter again, and very much doubt if I will use the AA-effect on my K-3 much, if at all.

Comment by BarryPearson posted on Interesting Reading about simulated AA filter of K-3 at 28/10/2013 - 09:45

BarryPearson
Class_A wrote:
Also, its effect varies across the image with shutter speeds higher than the sync-speed, i.e., it is not a uniform blur that is applied. It will be interesting to see how well it suppresses artefacts and responds to sharpening near its limits.
In what way does its effect vary across the image? The pixels have a consistent spacing, and the movement of the sensor during the AA-effect is consistent across the image.

(I've taken about 60,000 shots with my K-5IIs, including many in a studio, and haven't been troubled by moire. I'll be running with the AA-effect off except in specialised situations).

Comment by BarryPearson posted on Interesting Reading about simulated AA filter of K-3 at 27/10/2013 - 08:41

BarryPearson
johnriley wrote:
No need even for the histogram. The temptation these days is to stop and look at images and even histograms when the better option may well be to make the judgement and carry on shooting. Do the checking at the end when the moment has passed and the shots are in the bag, or maybe once half way through if we need reassurance.

Constant checking is a guaranteed way to miss the action.
In a studio, where lighting is under my control, I use manual. Although I have a good exposure meter, I no longer use it. I take a test shot and look at the histogram.

I've also shot an entire airshow (about 6000 DNGs) using manual. I took occasional test shots and use the histogram. For example, test shots of the public address loudspeakers against the sky. This means the camera isn't getting confused by different colours and shades of plane against changing skies and clouds.

(I am more likely to use center-weighted metering in those conditions in combination with TAv mode. I still take occasional test shots and check the histogram).

Comment by BarryPearson posted on Perhaps naive question, but who needs such fancy metering? at 14/10/2013 - 09:16

BarryPearson
jules wrote:
http://www.ricoh-imaging.co.jp/english/products/k-3/feature/02.html

Don't try it with the 60-250, you'll be disappointed!
Since that has been my main lens for those sorts of shoots for over 4 years, I will be using it.

I hope I won't be disappointed!

Comment by BarryPearson posted on What will the new Pentax really offer us? at 12/10/2013 - 09:59

BarryPearson
richandfleur wrote:
Smeggypants wrote:
Lancer3397 wrote:
I never understood the pissing match when it comes to cramming huge megapixels onto the sensor.

I could see myself getting a K3 but running it at 16mp instead to make image size efficient
Can you select 16MP RAW from it?
Thinking fundamentals here, would that still be raw sensor data if it's then scaled down? RAW being straight off the sensor I'm assuming there's only ever one native resolution available.

I've read/heard that this is actually a bit of a hindrance for video, in that full HD is still only 2MP in size. So you're getting all this information flooding in off the sensor and having to do a lot of work to reduce it all down to 2MP. Hence why we're seeing more 120 fps offerings on some smaller sensor cameras than on high MP DSLR's.
I think there is a case for a genuine crop, (perhaps to 16 MP), rather than a down-size. In other words just throw the edge pixels away. This is, in effect, why some people use K-mount lenses on the Q - for "reach", typically for birding.

Why crop rather than just capture the whole 24 MP and let the photographer crop later? To reduce the size in kilobytes. This might increase the number of images in the buffer, the speed at which the buffer can be cleared to the card at high fps, and would obviously increase the images per card, reduce import time into Lightroom, etc.

But there isn't the slightest hint in the specifications that the K-3 has such a feature!

Comment by BarryPearson posted on What will the new Pentax really offer us? at 10/10/2013 - 07:57

BarryPearson
richandfleur wrote:
Yep, surely the 500 marks the entry level point, followed by the K-50.

Actual product family wise, I can't see the need for the K-r, K-30 (even though that's what I've got), or possibly even the K-5II range any more as current products. The only exception being if you feel the need to offer an intermediary point option between the K-50 and the K3?
I agree that the K-r and K-30 don't have a useful place in the range. (And I'm pretty sure the K-r officially doesn't). They don't add anything significantly different.

I think there is a case for the K-5II(s) because of the large difference between the K-50 and K-3, as you say. (After all, the K-5II(s) and K-50 coexisted in the range before). But only if it doesn't interfere with sales of the K-3. I think Ricoh/Pentax will want to sell as many K-3s as possible.

Comment by BarryPearson posted on Will the K5 II and original 55-300 now be discontinued? at 10/10/2013 - 07:49

BarryPearson
Defragged wrote:
Pre-ordered mine already... Rock on Pentax...
So have I.

Comment by BarryPearson posted on Officially K-3? at 08/10/2013 - 02:01

BarryPearson
Daniel Bridge wrote:

Well, I for one couldn't care less about full frame, so the K-3 is far more appealing to me than if they'd announced something with a bigger sensor. So maybe they have listened to all the people who think the K-5 (various models) is superb, but could be made even better with a more flexible autofocus system, more flexible drive modes, even better high ISO performance (hoping about that one), even better dynamic range (fingers crossed there too), focus peaking, better video capabilities etc.

It was probably the more achievable goal, rather than a complete redesign that FF would entail, even it it did use large chunks of the current models in its design. It's surely on its way, but this one was easier.
Dan
Although people who only want FF are vocal, I suspect they are a minority. After all, it is also a matter of having or getting the right lenses too. Those people may have mostly older primes and/or non-Pentax lenses. People with any of the more modern Pentax lenses, especially zooms, would face an expensive lens purchase to accompany an FF camera.

And this lens problem is part of what makes this cropped camera a more achievable goal. Pentax need a number of its own FF lenses, especially zooms, to accompany an FF camera. It isn't sufficient to rely on old primes and non-Pentax lenses.

Comment by BarryPearson posted on Officially K-3? at 08/10/2013 - 00:17

BarryPearson
RobE17 wrote:
I've been following this thread with interest along with others. My main subject is aviation, this looks like everything that I've been waiting to see from a Pentax DSLR...shame the season ends on Sunday though
Still might have one for next season!
Yes, I'm getting it for better airshow performance, (AF-C, fps, etc), among other things.

(I was disappointed in the Saturday of the main Duxford airshow, and I'm giving the Autumn Show a miss).

Comment by BarryPearson posted on Officially K-3? at 07/10/2013 - 22:13

BarryPearson
McGregNi wrote:
But who will be the early adopters? Is it going to be lept on by current k5 owners or is a not a big enough leap for them? Will it be the dealbreaker for those like me with older models, or will it bring a new load of 'demanding enthusiasts' to Pentax?
I've been using a K-5IIs all year, 58,000+ shutter actuations. I've been building up a wish list based on problems I've had, things that would increase the number of keepers, etc. (The K-5IIs was a welcome improvement on the K-5, which itself was a nice camera).

The K-3 leaked specifications exceed pretty well all parts of my wish list. If they are accurate, (and since they are typically in the form of screen shots I'm pretty confident they are), I'll buy this camera as soon as possible after I've confirmed them, perhaps Wednesday.

OK, so my wish for switching between 10 fps and 5 fps isn't met, but realistically it was never going to be! But switching between 8.3 fps and 4.5 fps is close enough for a while.

Comment by BarryPearson posted on Officially K-3? at 07/10/2013 - 19:54

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