Richard Murdey

Richard Murdey

Lives in Japan Kyoto, Japan
Joined on Aug 21, 2002

Comments

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In reply to:

Richard Murdey: "very few people would be happy with a filter that blurred the resolution down to 1/4 of the pixel height"

Perhaps not, but that's close to how many of the photos we look at these days are presented to us: 24-36~50? MP sensors downsampled to view on, at best, 8-10 MP screens.

I've long wondered why no one offered a "purist option" in-camera setting where each Bayer RGBG 4-pixel cell of a 24 MP sensor was mapped to a single RGB "pixel" to give a 6 MP image file. Like Pentax pixel shift mode but without the pixel shift...

In modern cameras there is so much processing going on - noise reduction, CA reduction, distortion correction, sharpening, deblocking - that it's really just a big morphable mesh of data points, the array sequence isn't mapped out to the final image pixel-by-pixel at any resolution, it's just resized to whatever final output is specified.

As I said I think it would have to be implemented as a separate mode. It may be a better result than the processed downsample, it might be worse! but I'd be interested to see what it looks like.

Link | Posted on Mar 30, 2017 at 05:58 UTC

"very few people would be happy with a filter that blurred the resolution down to 1/4 of the pixel height"

Perhaps not, but that's close to how many of the photos we look at these days are presented to us: 24-36~50? MP sensors downsampled to view on, at best, 8-10 MP screens.

I've long wondered why no one offered a "purist option" in-camera setting where each Bayer RGBG 4-pixel cell of a 24 MP sensor was mapped to a single RGB "pixel" to give a 6 MP image file. Like Pentax pixel shift mode but without the pixel shift...

Link | Posted on Mar 30, 2017 at 00:41 UTC as 16th comment | 5 replies
On article Pentax KP Review (525 comments in total)
In reply to:

Nick Brundle - Photography: Buy a Nikon D750 for almost the same price and you've got just about the best all round camera for the same money

@jaxson If it's exactly what you want at a price you want, well sure. That's why I own Pentax: there are lenses on KA mount that interest me (35/2.8 macro, 15/4) which don't equate elsewhere. I was responding to this notion that full frame comes with a "bragging tax" i.e. paying extra for no benefit. There is really no more wasted potential in using a D750 exclusively with the 24-120 than there is in buying a KP to use only with the DA16-85, or 28-85 vs 18-55 if you prefer.

Link | Posted on Mar 28, 2017 at 05:16 UTC
On article Pentax KP Review (525 comments in total)
In reply to:

Nick Brundle - Photography: Buy a Nikon D750 for almost the same price and you've got just about the best all round camera for the same money

@Leandros,

No, that won't fly I'm afraid. Pentax DA Limited lenses - which you and others are quick to recommend for the KP - are on par cost wise with the "equivalent" Nikkor AFS FX lenses, and that's before we start in on the massive catalog of AFD/AiS glass.

In terms of cost effectiveness and lens availability, Nikon FX whips Pentax APSC hard.

Link | Posted on Mar 28, 2017 at 01:27 UTC
On article Pentax KP Review (525 comments in total)
In reply to:

Nick Brundle - Photography: Buy a Nikon D750 for almost the same price and you've got just about the best all round camera for the same money

Map Camera. Don't quote Kakaku, unless you can vouch for the retailer offering the lowest price.

Link | Posted on Mar 28, 2017 at 01:10 UTC

There are way too many companies making way too many cameras.

I was in Bic Camera last month - first time in a year, probably - and the scale of the problem hit home: rows and rows of permutations of fixed lens cameras, which even to my eyes looked much much indistinguishable, imagine what I typical consumer would see. There's RXs and GXs and LXs and TXs and just Xs ... and that's before we even get to ILC!

(and, equally damning, I had the display models all to myself .. )

Link | Posted on Mar 28, 2017 at 00:45 UTC as 68th comment
On article Pentax KP Review (525 comments in total)
In reply to:

Melchiorum: Had a chance to shoot with one for a couple of days. As much as I appreciate what Pentax is doing with their price-to-features ratio, I found this particular camera... weird. Not bad, but kind of underwhelming. Here's why:

1. I really felt like the battery was not worth sacrificing for interchangeable grips. With the small grip it feels like an overly bulbous and heavy mirrorless camera that is neither compact enough, nor comfortable enough to justify such design. It's no PEN-F for sure.

2. The auto-focus (C-AF in particular) is... bad. It was not stellar with K-3, but with KP it feels even worse, just because I've gotten used to how good the focusing systems got in a recent year. After shooting with D500, KP focusing felt almost inept.

3. It ditches some good stuff that K-3 II had and I just don't see why. It's not cheap after all, so a step back feels weird.

I love Pentax and I hope this product finds its customers, but I'd rather get K-3 II which is still a solid camera.

You have to think of it as a boutique model, something akin to the Pen-F. It's for people who want the relatively unique mix of features it offers, i.e. a small-but-good Pentax body.

I... agree with you however. Until Ricoh learns to engineer fundamentally slimmer cameras with the sensor set further back (c.f. D750, D500), making the camera smaller just unbalances the body, making it front heavy with anything but the smallest prime lens. The KP as a concept I can get behind, but the execution does not excite.

Comparing with the D500 AF-C was a bit unkind though. Like bringing a nuke to a knife fight.

Link | Posted on Mar 28, 2017 at 00:25 UTC
On article Pentax KP Review (525 comments in total)
In reply to:

noirdesir: I think it should be mentioned that the CIPA battery life uses the built-in flash (if a camera has one) for 50% of the pictures taken. Thus, merely the act of adding a flash (eg, compared to the K3II) will reduce the CIPA numbers significantly even if the battery size (and the power consumption of all other camera components) remains unchanged.

Flash power and and CIPA testing methods will of course favor the K-3ii with no flash, and allow cameras like the D3400 with weak flashes to get comparatively high scores, but in this instance it's an honest reflection of KP having a much smaller battery than either the K-3 or K-3ii. Real world battery life will be comparatively poor, flash or no flash.

Link | Posted on Mar 28, 2017 at 00:12 UTC
On article Pentax KP Review (525 comments in total)
In reply to:

Nick Brundle - Photography: Buy a Nikon D750 for almost the same price and you've got just about the best all round camera for the same money

Well, D750 was 145,000 yen after rebate late last year, KP is currently 123,000 yen. Today D750 is about 172,000 yen. D7200 is today 86,000 yen, K-3II 90,000 yen. D610 is 121,000 yen.

Any which way you want to slice that, the KP comes out looking overpriced.

Link | Posted on Mar 28, 2017 at 00:04 UTC
On article Pentax KP Review (525 comments in total)
In reply to:

xmeda: This is KS-3 named KP to continue anniversary model every 10 years.

That is all.

@jaxson You'd be wrong to judge it on the basis of the 1/6000s. It definitely feels like a K3 from a mechanical standpoint: the quiet, well damped shutter and short blackout. The K-70 is very much a step down, being noisy and sluggish in comparison.

Link | Posted on Mar 27, 2017 at 23:54 UTC
On article Re-make/Re-model: Leica Summaron 28mm F5.6 Samples (201 comments in total)

The perfectly straight horizons are cool. Everything else - from the flare to the low contrast to the slightly faded color and the soft corners- can be had by anyone with $25 to spend and an eBay user account.

Link | Posted on Mar 24, 2017 at 12:38 UTC as 65th comment | 2 replies
On article Re-make/Re-model: Leica Summaron 28mm F5.6 Samples (201 comments in total)
In reply to:

Triplet Perar: This lens is all personality! Fantastic stuff, truly unique rendering, and images bursting with life.

Nothing unique or fantastic about the rendering.

Link | Posted on Mar 24, 2017 at 12:33 UTC
On article Canon EOS 77D / 9000D sample gallery (132 comments in total)
In reply to:

Richard Murdey: I like these results a lot more than the Pentax KP gallery posted recently. Similar shots and conditions, so the comparison is fair I think.

I can't put my finger on why exactly. The Canon results just seem to have a more natural representation of color brightness and light dynamics generally. Bright looks bright, with a realistic sense of depth to the shadows. The KP seemed similar to recent Fuji output in "look", with an overly glossy, flat overlay which is attractive in a magazine cover kind of way but felt over-processed to me.

See image 26, taken with the STM 24mm. It's nice and sharp. The softness is coming from the Canon 18-135, which really isn't doing the camera any favors here and is clearly outclassed by the the DA 16-85.

Link | Posted on Mar 24, 2017 at 07:17 UTC
On article Fujifilm X-T20 Review (313 comments in total)
In reply to:

teos: Dear Friends,
I'm not impressed with the picture quality, I was expecting much better. I can't explain what is wrong with the photos taken by this camera, maybe some kind of oversharpening, or maybe some high level of "High Tone" applied, but when I look at full resolution the details look to me something like dirty, noisy, dark.. however you call but they are not crystal clear to my eye. I compared the studio photo with Nikon D3400 in very detail; Nikon's color production, sharpness balance and the clarity but with some smoothness of the photo look much better to me. I was planning to buy X-T20 and put my lovely 27mm lens on it for a general walkabout camera, however now I have tendency to get D3400 with attaching my 35mm f1.8G lens on it.
Your valuable comments on my decision are appreciated!

Thanks.

If that was my opinion on the Fuji image rendition I'd have no choice but to go with the D3400 and 35/1.8 DX.

Link | Posted on Mar 24, 2017 at 00:41 UTC
On article Canon EOS 77D / 9000D sample gallery (132 comments in total)
In reply to:

Jozef M: This is more a sample gallery of the EF-S 18-135mm than of the camera itself. I understand that most people use a zoom, but please use an L prime at f/6.3 in landscapes with high dynamic range in at least 10 images. So we can see what the camera sensor can do ... These samples are too easy.

There's one or two from the 24/2.8 STM, but basically the gallery belonged to the 70-300 and 18-135, which is a little unfortunate. The KP gallery had a better balance, with the 35/2.8 macro and Sigma 18-35/1.8 as well as the Pentax 18-135.

dpreview should definitely have thrown in a handful with the 50/1,8.

Link | Posted on Mar 24, 2017 at 00:23 UTC
On article Canon EOS 77D / 9000D sample gallery (132 comments in total)

I like these results a lot more than the Pentax KP gallery posted recently. Similar shots and conditions, so the comparison is fair I think.

I can't put my finger on why exactly. The Canon results just seem to have a more natural representation of color brightness and light dynamics generally. Bright looks bright, with a realistic sense of depth to the shadows. The KP seemed similar to recent Fuji output in "look", with an overly glossy, flat overlay which is attractive in a magazine cover kind of way but felt over-processed to me.

Link | Posted on Mar 23, 2017 at 23:38 UTC as 17th comment | 7 replies
On article Pentax KP sample gallery (95 comments in total)
In reply to:

jaxson: Nice selection of images.

Looks like you can run to ISO 12,800 safely, which would up my current Pentax limit of 3,200 by 2 stops. If the IBIS is that good then there's one or two more there, which is very impressive for APS-C.

Sad to see Pentax resorting to the marketing points of crazy high ISO settings etc, as these are inevitably found out in reviews/practise, and only detract from what is a pretty stunning piece of kit in it's own right.

Personally I'm waiting for the next real core DSLR, the K-80 or K-4 etc to replace the K-3. These side dabbles into KP / KS models seem to chew up a lot of development resources, rearranging parts off the shelf into new bodies.

Won't be buying anything though unless they return real SR IBIS during video mode though. Give me that and I'll buy it whatever the body looks like!

"This is a very clever move by Ricoh."

If Ricoh improved the video capabilities you'd be the first to sing their praises I bet, yet when they walk them back it's apparently all part of a cunning plan by Ricoh to concentrate on stills photography.

Look, I don't even care - all I was expressing was surprise a Jaxson's statement that he wouldn't buy a new Pentax until they (re?)implemented SR video, which struck me as a strange contractual position to take.

Link | Posted on Mar 23, 2017 at 01:13 UTC
On article Pentax KP sample gallery (95 comments in total)
In reply to:

goactive: Vs what i see from most Nikons the images look flat, dull and not very sharp at all.

@goactive That was my take as well, though the Pentaxian diaspora evidently disagrees. And no, mmx, it's not just about the settings.

Link | Posted on Mar 22, 2017 at 12:14 UTC
On article Pentax KP sample gallery (95 comments in total)
In reply to:

jaxson: Nice selection of images.

Looks like you can run to ISO 12,800 safely, which would up my current Pentax limit of 3,200 by 2 stops. If the IBIS is that good then there's one or two more there, which is very impressive for APS-C.

Sad to see Pentax resorting to the marketing points of crazy high ISO settings etc, as these are inevitably found out in reviews/practise, and only detract from what is a pretty stunning piece of kit in it's own right.

Personally I'm waiting for the next real core DSLR, the K-80 or K-4 etc to replace the K-3. These side dabbles into KP / KS models seem to chew up a lot of development resources, rearranging parts off the shelf into new bodies.

Won't be buying anything though unless they return real SR IBIS during video mode though. Give me that and I'll buy it whatever the body looks like!

SR or no SR would anyone buy Pentax for video though?

Link | Posted on Mar 22, 2017 at 03:26 UTC

A lot of that argument seems contingent on the differences in R&D spend, which is fair if you are comparing cameras but not fair if you are comparing formats.

It's also worth noting that the sensor size is not hugely different, so format advantages are more likely to be up-ended by a technology advantage in this particular instance.

The way I look at it generally, so far as bigger sensors is concerned, is it gives more "available resolution in combination with greater DOF control and lower noise". It's not like you can't match any one parameter with a smaller sensor, but you have less quality currency to spend overall.

Link | Posted on Mar 22, 2017 at 03:23 UTC as 236th comment
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